JP5765837B1 - Dental treatment wire, dental treatment set and method for producing dental treatment wire - Google Patents

Abstract

Dental treatment that can prevent tooth root absorption almost completely without causing damage to tissues by enabling three-dimensional tooth movement without orthodontic treatment prior to orthodontic treatment. Provide wire for use. A dental treatment wire 11 includes a first portion 11a, a second portion 11b, a third portion 11c, an arched fourth portion 11d, a fifth portion 11e, a sixth portion 11f, and a seventh portion 11g. , (0.41 to 0.05 mm)? (0.56 to 0.05 mm), and is made of an arched stainless steel wire as a whole. The first and seventh parts are in the first plane, the second and sixth parts are in the second plane, the third and fifth parts are in the third plane, and the fourth part is in the fourth plane. . The second plane is 5? To 20? With respect to the first plane, the second plane is 5? To 20? On the same side as the first plane with respect to the third plane, and the fourth plane is the first plane with respect to the third plane. It is inclined 5 ~ 20? On the same side. [Selection] Figure 1

Description

  TECHNICAL FIELD The present invention relates to a dental treatment wire, a dental treatment set, and a method for producing a dental treatment wire, and in particular, a dental treatment wire suitable for use by a dentist when performing orthodontic treatment, a method for producing the same, and the method thereof. The present invention relates to a dental treatment set including a dental treatment wire and a bracket.

  In orthodontic treatment, an orthodontic device such as a bracket is attached to the crown of a tooth, and an orthodontic wire that has been bent (bended) is attached to the orthodontic device, and both ends thereof are fixed to a fixing source. Thus, the orthodontic wire is used to apply a force to the teeth to move them (for example, see Non-Patent Documents 1 and 2).

  About 160 years have passed since modern orthodontic treatment was first performed. In the meantime, various orthodontic materials have been developed, orthodontic theories have been developed, and it is considered that the treatment has been rationalized to some extent. However, it is doubtful that all the contents of orthodontic treatment that are generally performed today have been established as safe and highly rational treatments. In conclusion, the orthodontic treatment that is generally performed at present cannot be considered as a safe and highly rational treatment from a mechanical point of view. Above all, there is no reliable treatment theory that says "this is correct in all", there is no book that can be said to be a 100% reliable manual, and treatment using the theory and easy techniques that each orthodontist believes to be correct. It can be said that the current situation is only doing.

  Originally, orthodontic treatment should be "a treatment that establishes an occlusal relationship by safely moving teeth without causing harm to the tissue in the oral cavity", but even if considered from all directions, it does not harm the tissue. There is no established method to move teeth safely and reliably without giving them.

  Under these circumstances, safe orthodontic treatment is not always available, and it is thought that medical problems such as root resorption, temporomandibular joint symptoms, and occlusion failure occur at a certain probability. .

  Especially for root resorption, there is no noticeable symptom after treatment except in severe cases. At first glance, it seems that the teeth are arranged neatly. Therefore, X-rays should be taken after treatment. This is a very difficult problem to understand. However, depending on the degree of root resorption, it can be a big trouble in the future.

  When treatment is based on the current orthodontic theory, it is an incomplete theory of histological and mechanical balance, so any time root resorption occurs in one third of the root apex It is given up if it cannot be helped, and if the root resorption does not occur, it must be fortunate.

  Even if some root resorption occurs, the tooth itself does not immediately go bad, and many orthodontists consider it unavoidable even if some degree of root resorption occurs. Not all cases cause root resorption, but the mechanisms of many orthodontic techniques that are currently practiced are inevitably considered to cause root resorption with a probability of a few percent. It was.

  However, the root resorption that occurs in orthodontic treatment is actually a big problem. That is, if extreme root resorption occurs, the teeth will be easily removed. In addition, even if you are young (or immediately after treatment), it will be easy to fall out if you have a periodontal disease in the future and your gums become weak. If this happens, the only way to deal with it is to remove the tooth.

  The mechanism of root absorption will be described in detail. There are several mechanisms of root resorption. There are cases where root resorption occurs congenitally (pathologically), but in fact, there are overwhelmingly cases that are caused artificially by orthodontic treatment. The following two patterns are considered as cases that are caused artificially.

  One is when the correction force is too strong. As a mechanism of orthodontic treatment, the force is always applied to the teeth by a mechanical orthodontic device, but in fact, orthodontic treatment transmits a continuous force from the teeth to the tissue and moves the teeth using some kind of metabolism. It is treatment to let you. However, there is an allowable range for the force to move the teeth, and it will not move properly if the force is too strong or too weak. If this force exceeds the allowable range and is too strong, it will cause root resorption.

  The other is root resorption by jiggling. The tooth movement mechanism includes tooth body movement and inclination movement, and most of the orthodontic treatments currently carried out perform inclination movement in which the tooth is inclined and moved while performing small jiggling or large jiggling. This inclination movement is a major cause of root resorption, and it is considered that most tooth root resorption can be avoided if tooth movement without tilting the tooth becomes possible.

  The reason why perfect tooth movement has not been realized so far will be described. The large wall is due to anatomical tooth structure and mechanical structure. That is, as shown in FIG. 113, the tooth 501 has a crown portion 501 a and a root portion 501 b planted in the alveolar bone 503 through the periodontal membrane 502. Reference numeral 504 indicates a gingiva. The height ratio of the crown portion 501a and the root portion 501b is about 1: 1.5, but there are individual differences. Since the orthodontic appliance cannot be mounted on the root portion 501b, it is mounted on the crown portion 501a, but what is actually desired to be moved is the root portion 501b. This is exactly the point at which it is impossible to perform mechanically. That is, when the correction force is applied by a normal mechanism, the vicinity of the root apex 1/3 becomes a fulcrum when the tooth root portion 501b moves due to the positional relationship between the force point and the action point. In other words, the root apex 1/3 moves while repeating jiggling. Therefore, when the movement is completed, the teeth 501 are surely damaged.

  Under the background as described above, the present inventor has proposed an orthodontic wire based on a new concept used in a state where the left and right first premolars or the second premolars have been extracted in advance (patent) Reference 1 and Non-Patent Documents 3 and 4). The orthodontic wire has a substantially straight first portion, a substantially straight second portion, a central arched third portion, a substantially straight fourth portion and a substantially straight wire from one end to the other end. An overall arched stainless steel wire having a fifth portion and having a rectangular cross-sectional shape of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) or of this stainless steel wire Material other than stainless steel having a cross-sectional shape similar to the cross-sectional shape and a similar ratio of 1: p (where 0.9 ≦ p ≦ 1.1) and having mechanical properties equivalent to this stainless steel wire The first part and the fifth part are substantially in the first plane, the second part and the fourth part are substantially in the second plane, and the third part is substantially Located in three planes, The long side of the rectangular cross section of the wire made of a material other than the stainless steel wire or the stainless steel is substantially parallel to the first plane, the second plane, and the third plane, and the first plane is the first plane The third plane is inclined at 12 ° or more and 25 ° or less with respect to the two planes, and the third plane is inclined at 12 ° or more and 25 ° or less with respect to the second plane on the same side as the first plane. The portion has a length that can be stretched over the first molar on the left or right side of the patient's upper or lower jaw, and the second and fourth portions are approximately on the left or right side of the patient's upper or lower jaw. Characterized in that it has a length that can be stretched over the first premolar and the second premolar, and the third portion has a length that can be stretched over the entire anterior teeth of the upper or lower jaw of the patient. (See Patent Document 1) ).

Japanese Patent No. 5565549

William R. Proffit (translated by Kenji Takada) "The new edition of Profito's modern orthodontics" (Quintessence Publishing Co., Ltd., issued on June 10, 2004) Haruo Ishikawa and Masatada Koga “Pre-Adjusted Bracket System Straight Wire Technique” (Quintessence Publishing Co., Ltd., published on January 25, 1997) [Searched on November 21, 2013], Internet <URL: http://www.cat-ortho.jp/treatment/categories/t01.html> [Search on November 21, 2013] Internet <URL: http://www.japos.jp/purpose/index.html>

  By using the orthodontic wire proposed in Patent Document 1 for orthodontic treatment, three-dimensional tooth movement becomes possible, so root absorption can be almost completely prevented, and the tissue An epoch-making effect is obtained that hardly causes damage. On the other hand, it is most ideal if tooth extraction is not performed in advance, that is, it is possible to perform the same orthodontic treatment without tooth extraction. However, no orthodontic wire that can perform safe and effective orthodontic treatment without tooth extraction has been proposed so far.

  Therefore, the problem to be solved by the present invention is that, when used for orthodontic treatment, three-dimensional tooth movement is possible without pre-extraction, thereby preventing root resorption almost completely. Can be treated with little or no damage to the tissue, or it can be treated very easily when used to treat periodontal disease, more commonly periodontal disease A dental treatment wire and a dental treatment set including the dental treatment wire and a bracket are provided.

  Another problem to be solved by the present invention is to provide a method for producing a dental treatment wire that can easily produce the above-described dental treatment wire.

In order to solve the above problems, the present invention provides:
From the one end to the other end, the first part is almost straight, the second part is almost straight, the third part is almost straight, the fourth part is arched in the center, the fifth part is almost straight, and the part is almost straight A generally arcuate stainless steel having a rectangular cross-sectional shape of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) A cross-sectional shape similar to the cross-sectional shape of the steel wire or this stainless steel wire with a similar ratio 1: p (where 0.9 ≦ p ≦ 1.1), and a machine equivalent to this stainless steel wire Consisting of a wire made of a material other than stainless steel with specific properties,
The first portion and the seventh portion are located substantially in the first plane;
The second part and the sixth part are located substantially in the second plane;
The third part and the fifth part are located substantially in the third plane;
The fourth part is located substantially in the fourth plane;
The long side of the rectangular cross section of the wire made of a material other than the stainless steel wire or the stainless steel is substantially parallel to the first plane, the second plane, the third plane, and the fourth plane,
The second plane is inclined by 5 ° or more and 20 ° or less with respect to the first plane,
The third plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the second plane,
The fourth plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the third plane,
The first part and the seventh part have a length that can be stretched over the first molar on the left or right side of the patient's upper or lower jaw,
The second part and the sixth part have a length that can be stretched over the second premolar on the left or right side of the patient's upper or lower jaw,
The third part and the fifth part have a length that can be stretched over the first premolar on the left or right side of the patient's upper or lower jaw,
The fourth portion is a dental treatment wire characterized by having a length that can be stretched over the entire front teeth of the upper or lower jaw of the patient.

  This wire for dental treatment is used when performing orthodontic treatment without tooth extraction or treating periodontal disease. That is, when performing orthodontic treatment of a patient's upper teeth, this dental treatment wire does not extract any of the teeth, and the second part, the third part, the fifth part, and the sixth part. The first part, the fourth part and the seventh part up with respect to the part, the first part, the second part, the third part, the fourth part, the fifth part, the sixth part and The first part is mounted on the front surface of the left first molar crown with the dental treatment wire bent so that the seventh part is included in substantially the same plane, and the second part Is attached to the front of the crown of the left second premolar, the third part is attached to the front of the crown of the left first premolar, and the fourth part is the left and right central incisors Is attached to the front of the crown of the side incisor and canine, and the fifth part is the first on the right Mounted on the front of the crown of the molar, the sixth part mounted on the front of the right second premolar crown, and the seventh part on the front of the right first molar crown Installed. Further, when performing orthodontic treatment of the mandibular teeth of the patient, without extracting any of the teeth, the first part with respect to the second part, the third part, the fifth part, and the sixth part The fourth part and the seventh part are down, and the first part, the second part, the third part, the fourth part, the fifth part, the sixth part and the seventh part are substantially the same. In a state where the dental treatment wire is bent so as to be included in a plane, the first portion is attached to the front surface of the crown portion of the right first molar, and the second portion is the right second premolar. The third part is attached to the front surface of the right first premolar crown, and the fourth part is the left and right central incisors, side incisors and canines. It is attached to the front of the crown, and the fifth part is attached to the front of the left first premolar crown. The sixth portion is mounted to the front surface of the second premolar crown portion of the left, the seventh part is attached to the front surface of the crown portion of the first molar on the left. When performing treatment for periodontal disease, the method for attaching the dental treatment wire is the same as described above.

  When a stainless steel wire is used for the dental treatment wire, the rectangular dimension of the cross section is within the range of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) as required. To be elected. If the cross-sectional rectangular dimension is a stainless steel wire within the range of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm), the second plane can be made to the first plane as necessary. By adjusting the inclination angle, the inclination angle of the third plane with respect to the second plane, and the inclination angle of the fourth plane with respect to the third plane, a stainless steel wire having a rectangular cross-sectional dimension of 0.41 mm x 0.56 mm is obtained. It is possible to obtain the same effect as when used. Moreover, as long as it has the mechanical properties (Young's modulus, torsional rigidity, etc.) equivalent to this stainless steel wire, a wire made of a material other than stainless steel may be used for the dental treatment wire. Depending on the material of the wire, the cross-sectional shape of the stainless steel wire having a rectangular cross-sectional shape of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) and the similarity ratio 1: p ( However, it should have a cross-sectional shape similar to 0.9 ≦ p ≦ 1.1). In this way, even if a wire made of a material other than stainless steel is used, the tilt angle of the second plane with respect to the first plane, the tilt angle of the third plane with respect to the second plane, and the third plane of the fourth plane as necessary. By adjusting the inclination angle with respect to the plane, it is possible to obtain the same effect as when a stainless steel wire having a rectangular cross section of 0.41 mm × 0.56 mm is used. Examples of materials other than stainless steel include various metals other than stainless steel (single metals and alloys), various fiber reinforced plastics (FRP), composite metal materials of two or more metals, metals and other materials, such as A composite material with a fiber reinforced plastic or the like can be used. Examples of metals other than stainless steel include nickel. Examples of the fiber reinforced plastic include carbon fiber reinforced plastic, silicon carbide fiber reinforced plastic, and glass fiber reinforced plastic. A wire made of a material other than stainless steel is not only a wire made of a uniform material but also, for example, a core material made of metal and a coating layer made of metal or fiber reinforced plastic covering the core material. Also good. Preferably, a stainless steel wire having a rectangular cross-sectional shape of (0.41 ± 0.02 mm) × (0.56 ± 0.02 mm) or a cross-sectional shape of this stainless steel wire and a similarity ratio of 1: A wire made of a material other than stainless steel having a cross-sectional shape similar to p (provided that 0.9 ≦ p ≦ 1.1) is used, and the most typical example is 0.41 mm × 0.56 mm. A stainless steel wire having a rectangular cross-sectional shape of (0.016 ″ × 0.022 ″) is used. By using a thin stainless steel wire or a wire made of a material other than stainless steel as described above, an appropriate correction force that is not too strong can be applied to the teeth, and therefore root absorption can be effectively prevented.

  The dental treatment wire is typically manufactured by bending six portions of a single stainless steel wire or a wire made of a material other than stainless steel. That is, the first part, the second part, the third part, the fourth part, the fifth part, and the sixth part are obtained by bending six stainless steel wires or a wire made of a material other than stainless steel. And a seventh part is formed. In this dental treatment wire, the bent portion of the boundary between the first portion and the second portion and the bent portion of the boundary between the seventh portion and the sixth portion are inclined to the left and right first molars centrifugally, That is, it is for preventing tip tilt and tipping to the mesial position, and hereinafter referred to as a tip back bend part. In addition, the bent part of the boundary between the third part and the fourth part and the bent part of the boundary between the fifth part and the fourth part are obtained when this dental treatment wire is attached to the upper or lower teeth using a bracket. In addition, a torque in the direction of rotation that causes the front teeth to tilt toward the labial side is applied, and when the dental treatment wire is locked in the slot of the bracket attached to the front teeth as described later, the torque at that time is maintained. In the following, it is referred to as a torque holding bend section. The inclination angle of the second plane with respect to the first plane, the inclination angle of the third plane with respect to the second plane, and the inclination angle of the fourth plane with respect to the third plane are within the range of 5 ° to 20 °, and the material of the wire to be used Depending on the dimensions of the rectangle of the cross section and the like, it is appropriately selected, but is preferably 5 ° to 15 °, typically 7 ° to 13 °, for example 10 °.

  Typically, the dental care wire bisects the fourth portion and is substantially symmetric with respect to a plane perpendicular to the first plane, the second plane, the third plane, and the fourth plane. In addition, typically, when this dental treatment wire is attached to a bracket attached to the front surface of a crown portion of a patient's maxillary anterior or mandibular anterior tooth, one longitudinal ridge of the orthodontic wire is a bracket. A point contact or a line contact is made on the bottom surface of the slot, and ridges on both sides sandwiching the ridge make a point contact or a line contact with both side surfaces of the bracket slot. As a result, the frictional force acting between the dental treatment wire and the bracket can be made extremely small, so that the tooth body can be moved even with a small correction force, and the burden on the patient's teeth can be greatly reduced. Become. The cross-sectional shape of the slot of the bracket is generally rectangular.

In addition, this invention
A dental treatment set comprising a dental treatment wire and a bracket for attaching the dental treatment wire,
The dental treatment wire is
From the one end to the other end, the first part is almost straight, the second part is almost straight, the third part is almost straight, the fourth part is arched in the center, the fifth part is almost straight, and the part is almost straight A generally arcuate stainless steel having a rectangular cross-sectional shape of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) A cross-sectional shape similar to the cross-sectional shape of the steel wire or this stainless steel wire with a similar ratio 1: p (where 0.9 ≦ p ≦ 1.1), and a machine equivalent to this stainless steel wire Consisting of a wire made of a material other than stainless steel with specific properties,
The first portion and the seventh portion are located substantially in the first plane;
The second part and the sixth part are located substantially in the second plane;
The third part and the fifth part are located substantially in the third plane;
The fourth part is located substantially in the fourth plane;
The long side of the rectangular cross section of the wire made of a material other than the stainless steel wire or the stainless steel is substantially parallel to the first plane, the second plane, the third plane, and the fourth plane,
The second plane is inclined by 5 ° or more and 20 ° or less with respect to the first plane,
The third plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the second plane,
The fourth plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the third plane,
The first part and the seventh part have a length that can be stretched over the first molar on the left or right side of the patient's upper or lower jaw,
The second part and the sixth part have a length that can be stretched over the second premolar on the left or right side of the patient's upper or lower jaw,
The third part and the fifth part have a length that can be stretched over the first premolar on the left or right side of the patient's upper or lower jaw,
The fourth part has a length that can be stretched over the entire front teeth of the patient's upper or lower jaw,
The bracket is
A dental treatment set comprising a slot having a rectangular cross-sectional shape having a width of 0.56 ± 0.05 mm or a slot having a rectangular cross-sectional shape having a width of (0.56 ± 0.05 mm) × p It is.

  By using this dental treatment set, the effect of performing orthodontic treatment or periodontal disease treatment using the dental treatment wire according to the present invention can be most reliably obtained. In the dental treatment set, preferably, the dental treatment wire is a stainless steel wire having a rectangular cross-sectional shape of (0.41 ± 0.02 mm) × (0.56 ± 0.02 mm) or the wire. It has a cross-sectional shape similar to the cross-sectional shape of the stainless steel wire at a similarity ratio of 1: p, and is made of a wire made of a material other than stainless steel having the same mechanical properties as this stainless steel wire, The plane is inclined 7 ° or more and 13 ° or less with respect to the first plane, the third plane is inclined 7 ° or more and 13 ° or less on the same side as the first plane with respect to the second plane, and the fourth plane is the third plane. Slot having a rectangular cross-sectional shape with a width of 0.56 ± 0.02 mm or (0.56 ± 0.02 mm) × p inclined to the same side as the first plane by 7 ° or more and 13 ° or less. Have

  The dental treatment set preferably includes an orthodontic superelastic wire attached to a plurality of brackets attached to a patient's upper teeth or lower teeth, and the plurality of brackets attached to the upper teeth or lower teeth. Of the superelastic wire for orthodontics attached to a pair, a spring constant is attached to a portion between the pair of brackets attached to a pair of teeth and inserted in a compressed state. And a coil spring of 50 N / m or more and 200 N / m or less. According to such orthoelastic wires and coil springs for orthodontics, if it is necessary to increase the interdental distance between any tooth in the initial stage of orthodontic treatment, the final tooth rotation and The interdental distance can be increased with little inclination, or the torsion teeth can be rotated to a normal position. As long as this coil spring has a spring constant of 50 N / m or more and 200 N / m or less, basically any type of coil spring can be used. However, the elastic force exerted by the coil spring attached in a compressed state is as follows. Since it is desirable that it is as weak as possible within a range where the effect of increasing the interdental distance is obtained, the spring constant is preferably 50 N / m or more and 150 N / m or less, and generally 100 ± 30 N / m. Here, according to the measurement of the present inventor, the spring constant of a conventionally used stainless steel coil spring is about 600 N / m. As a typical example of this coil spring, a diameter obtained by coating polytetrafluoroethylene with a thickness of 0.05 mm on the outer peripheral surface of a stainless steel wire having a circular cross-sectional shape and a diameter of 0.2 mm. It consists of a 0.3 mm wire or another wire having mechanical properties equivalent to this wire. The inner diameter of the coil spring is within a range in which the orthoelastic orthoelastic wire can be inserted into the coil spring and the coil spring can be freely expanded and contracted with the orthodontic superelastic wire inserted. Is selected as needed. The outer diameter of the coil spring is freely expanded and contracted in a state between the pair of brackets attached to the pair of teeth of the orthoelastic superelastic wire with the coil spring inserted through the portion. Although it is selected as necessary within a possible range, specifically, it is, for example, 1.2 mm or more and 1.8 mm or less. The orthoelastic wire for orthodontics is made of, for example, a NiTi alloy or an AuCuZn alloy (gold copper zinc alloy), but is not limited thereto. The cross-sectional shape of the orthoelastic superelastic wire may be circular or quadrangular (rectangular or square), but is preferably circular. Further, the thickness of the orthoelastic superelastic wire is selected as necessary. As a specific example of the orthoelastic wire for orthodontics, it is composed of a NiTi alloy superelastic wire having a circular cross-sectional shape and a diameter of 0.4 ± 0.1 mm, but is not limited thereto.

In addition, this invention
By bending six locations of a single stainless steel wire or a wire made of a material other than stainless steel,
From the one end to the other end, the first part is almost straight, the second part is almost straight, the third part is almost straight, the fourth part is arched in the center, the fifth part is almost straight, and the part is almost straight A generally arcuate stainless steel having a rectangular cross-sectional shape of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) A cross-sectional shape similar to the cross-sectional shape of the steel wire or this stainless steel wire with a similar ratio 1: p (where 0.9 ≦ p ≦ 1.1), and a machine equivalent to this stainless steel wire Consisting of a wire made of a material other than stainless steel with specific properties,
The first portion and the seventh portion are located substantially in the first plane;
The second part and the sixth part are located substantially in the second plane;
The third part and the fifth part are located substantially in the third plane;
The fourth part is located substantially in the fourth plane;
The long side of the rectangular cross section of the wire made of a material other than the stainless steel wire or the stainless steel is substantially parallel to the first plane, the second plane, the third plane, and the fourth plane,
The second plane is inclined by 5 ° or more and 20 ° or less with respect to the first plane,
The third plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the second plane,
The fourth plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the third plane,
The first part and the seventh part have a length that can be stretched over the first molar on the left or right side of the patient's upper or lower jaw,
The second part and the sixth part have a length that can be stretched over the second premolar on the left or right side of the patient's upper or lower jaw,
The third part and the fifth part have a length that can be stretched over the first premolar on the left or right side of the patient's upper or lower jaw,
The fourth part is a method for manufacturing a dental treatment wire, characterized by producing a dental treatment wire having a length that can be stretched over the entire front teeth of a patient's upper jaw or lower jaw.

  In each invention of the dental treatment set and the method of manufacturing a dental treatment wire, what has been described in relation to the dental treatment wire invention is valid.

  According to the dental treatment wire according to the present invention, for example, it is attached using brackets attached to the maxillary anterior teeth or the mandibular anterior teeth and the bondable tubes attached to the left and right first molars, and further, these brackets are appropriately corrected. The power chain selected in consideration of force is hooked while being stretched, and both ends of the power chain are fixed to the bondable tubes attached to the left and right first molars. If the state is maintained for a certain period, the fourth part is bent downward or upward around the torque holding bend at each of the left and right parts, and the correction is made in a substantially vertical direction perpendicular to the fourth plane. The combined force of the force and the almost horizontal orthodontic force generated by fixing both ends of the dental treatment wire to the left and right first molars and attaching the power chain is the left and right middle incisors Works against lateral incisors and canines. As a result, these teeth are three-dimensionally aligned so that the roots of these teeth are aligned towards a temporary point that is ultimately set as the intersection of the extension lines of the central axes (or tooth axes) of the roots of these teeth. Tooth body can be moved. At this time, since jigging is not performed, root resorption can be effectively prevented. In addition, since the bend angle of the torque holding bend portion is as large as 5 ° or more and 20 ° or less, the thickness of this dental treatment wire can be small, so that an appropriate correction force that is not too strong can be obtained, This can minimize tissue damage during correction. Furthermore, in the treatment of periodontal disease, even if the tooth is unstable, the use of this dental treatment wire can stabilize the occlusion, and in particular with regard to the front tooth, the tooth suffering from periodontal disease. In addition, the same force as described above, in particular, a force perpendicular to the fourth plane and in a substantially vertical direction works continuously, so that periodontal disease can be treated very easily. Moreover, according to the dental treatment set according to the present invention, the effect obtained by performing orthodontic treatment or periodontal disease treatment using the dental treatment wire according to the present invention can be most reliably obtained. Moreover, according to the method for manufacturing a dental treatment wire according to the present invention, the above-described dental treatment wire can be easily manufactured by bending.

It is the top view which shows the dental treatment wire by 1st embodiment of this invention, a right view, a left view, a front view, and an expanded sectional view. It is a basic diagram which shows the 1st example of the manufacturing method of the wire for dental treatment by 1st embodiment of this invention. It is a basic diagram which shows the 2nd example of the manufacturing method of the wire for dental treatment by 1st embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a dental treatment wire manufacturing pliers suitable for use in manufacturing a dental treatment wire according to a first embodiment of the present invention. It is a perspective view which shows the pliers for dental treatment wire manufacture suitable for manufacture of the wire for dental treatment by 1st embodiment of this invention. It is a perspective view which shows the pliers for dental treatment wire manufacture suitable for manufacture of the wire for dental treatment by 1st embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a dental treatment wire manufacturing pliers suitable for use in manufacturing a dental treatment wire according to a first embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a dental treatment wire manufacturing pliers suitable for use in manufacturing a dental treatment wire according to a first embodiment of the present invention. It is sectional drawing which shows the pliers for dental treatment wire manufacture suitable for manufacture of the wire for dental treatment by 1st embodiment of this invention. It is a perspective view which shows the method of manufacturing the dental treatment wire by 1st embodiment of this invention using the pliers for dental treatment wire manufacture. It is a perspective view which shows the method of manufacturing the dental treatment wire by 1st embodiment of this invention using the pliers for dental treatment wire manufacture. It is sectional drawing which shows the method to manufacture the dental treatment wire by 1st embodiment of this invention using the pliers for dental treatment wire manufacture. It is a top view which shows the state which attached the dental treatment wire with the bracket to the upper jaw tooth and the lower jaw tooth. It is a perspective view which shows the state which attached the dental treatment wire to the upper jaw tooth and the lower jaw tooth with the bracket. It is a perspective view which shows an example of the bracket used for an upper jaw tooth, and a bondable tube. It is a side view which shows the state by which the dental treatment wire was attached to the upper jaw tooth with the bracket. It is a side view which shows the state by which the dental treatment wire was attached to the lower jaw tooth with the bracket. It is the expanded view which shows the state by which the dental treatment wire was attached with the bracket with which the upper jaw tooth was mounted | worn, and a cross-sectional view of each part of the dental treatment wire. It is a basic diagram which expands and shows the part from the upper right first premolar of the dental treatment wire shown in FIG. 18A to the upper right canine. It is a top view of the wire for dental treatment of the state attached to the bracket with which the upper jaw tooth was mounted | worn. It is sectional drawing which shows the bracket with which the maxillary right middle incisor was mounted | worn, and the dental treatment wire passed through the slot of this bracket. It is sectional drawing which shows the bracket with which the maxillary right side incisor was mounted | worn, and the dental treatment wire passed through the slot of this bracket. It is sectional drawing which shows the bracket with which the maxillary right canine was mounted | worn, and the dental treatment wire passed through the slot of this bracket. It is sectional drawing which shows the bracket with which the maxillary right first premolar was mounted | worn, and the dental treatment wire passed through the slot of this bracket. It is a basic diagram for demonstrating the tooth body movement enabled by the dental treatment wire by 1st embodiment of this invention. It is a basic diagram which shows the specific example of the usage method of the wire for dental treatment by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. FIG. 32 is a drawing-substituting photograph showing a photograph of the dental treatment wire and power chain shown in FIG. 31. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 1 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 2 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 3 using the wire for dental treatment by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 3 using the wire for dental treatment by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 3 using the wire for dental treatment by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 3 using the wire for dental treatment by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 3 using the wire for dental treatment by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 3 using the wire for dental treatment by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 3 using the wire for dental treatment by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 4 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 4 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 4 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 4 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 4 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which performed the orthodontic treatment of the patient 4 using the dental treatment wire by 1st embodiment of this invention. It is a basic diagram which shows the orthoelastic superelastic wire and coil spring which comprise the set for dental treatment by 2nd embodiment of this invention. It is a basic diagram which shows the state which is not compressed and the compressed state of the coil spring which comprises the dental treatment set by 2nd embodiment of this invention. It is a basic diagram which shows the state which attached the super elastic wire and coil spring for orthodontics which comprise the set for dental treatment by 2nd embodiment of this invention to the upper jaw tooth. It is a basic diagram for demonstrating the effect | action of the orthoelastic superelastic wire and coil spring which comprise the dental treatment set by 2nd embodiment of this invention. It is a basic diagram for demonstrating the effect | action of the orthoelastic superelastic wire and coil spring which comprise the dental treatment set by 2nd embodiment of this invention. It is a drawing substitute photograph which shows the photograph which image | photographed the superelastic wire for an orthodontic, the coil spring, and the ligation wire used for preparation of this coil spring which shows the Example of the set for dental treatment by 2nd embodiment of this invention. FIG. 77 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment of a patient 11 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment of a patient 11 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment of a patient 11 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph showing a panoramic X-ray photograph of a patient 11 who has received treatment at an initial stage of orthodontic treatment using the dental treatment set shown in FIG. 76 before the start of treatment. FIG. 77 is a drawing-substituting photograph showing a panoramic X-ray photograph of a patient 11 who performed treatment at an initial stage of orthodontic treatment using the dental treatment set shown in FIG. 76. 76 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment of a patient 12 using the dental treatment set shown in FIG. 76. 76 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment of a patient 12 using the dental treatment set shown in FIG. 76. 76 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment of a patient 12 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph showing a panoramic X-ray photograph of a patient 12 who has been treated at the initial stage of orthodontic treatment using the dental treatment set shown in FIG. 76 before the start of treatment. FIG. 77 is a drawing-substituting photograph showing a panoramic X-ray photograph of a patient 12 who has been treated at the initial stage of orthodontic treatment using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment for a patient 13 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment for a patient 13 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment for a patient 13 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph showing a panoramic X-ray photograph of a patient 13 who has been treated at an initial stage of orthodontic treatment using the dental treatment set shown in FIG. 76 before the start of treatment. FIG. 77 is a drawing-substituting photograph showing a panoramic X-ray photograph of a patient 13 who has been treated at an initial stage of orthodontic treatment using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment for a patient 14 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment for a patient 14 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph for explaining a method of performing an initial stage of orthodontic treatment for a patient 14 using the dental treatment set shown in FIG. 76. FIG. 77 is a drawing-substituting photograph showing a panoramic X-ray photograph of a patient 14 who has been treated at an initial stage of orthodontic treatment using the dental treatment set shown in FIG. 76 before the start of treatment. FIG. 77 is a drawing-substituting photograph showing a panoramic X-ray photograph of a patient 14 who has been treated at an initial stage of orthodontic treatment using the dental treatment set shown in FIG. 76. It is a basic diagram for demonstrating the method of rotating and rotating a torsion tooth to a normal position with the orthoelastic orthoelastic wire and coil spring which comprise the dental treatment set by 2nd embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph which shows the panoramic X-ray photograph before the treatment start of the patient 21 who treated periodontal disease using the dental treatment wire according to the first embodiment of the present invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph which shows the panoramic X-ray photograph in the middle of the treatment of the patient 21 who treated periodontal disease using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph for demonstrating an example which treated the periodontal disease of the patient 21 using the dental treatment wire by 1st embodiment of this invention. It is a drawing substitute photograph which shows the panoramic X-ray photograph of the patient 21 who performed the treatment of periodontal disease using the dental treatment wire by 1st embodiment of this invention. It is an approximate line figure for explaining the mechanism in which root resorption occurs by conventional orthodontic treatment.

  Hereinafter, modes for carrying out the invention (hereinafter referred to as “embodiments”) will be described.

<1. First Embodiment>
[Dental treatment wire]
First, the dental treatment wire according to the first embodiment used in orthodontic treatment or treatment of periodontal disease will be described.

  1A to 1D show this dental treatment wire 11. 1A is a plan view, FIG. 1B is a right side view, FIG. 1C is a left side view, and FIG. 1D is a front view.

As shown in FIGS. 1A to 1D, the dental treatment wire 11 includes a substantially straight first portion 11a, a substantially straight second portion 11b, and a substantially straight third portion 11c from one end to the other end. A central arched fourth portion 11d, a substantially straight fifth portion 11e, a substantially straight sixth portion 11f and a substantially straight seventh portion 11g, and having a rectangular cross-sectional shape as a whole Made of arched metal wire. The length of the short side of the rectangular cross section of the metal wire is a, and the length of the long side is b (b> a). The cross-sectional shape along the EE line of the first portion 11a shown in FIG. 1A is shown in FIG. 1E. The metal wire constituting the dental treatment wire 11 is a stainless steel wire of a × b = (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) or a cross-sectional shape of this stainless steel wire. A wire made of a metal other than stainless steel having a similar cross-sectional shape with a similarity ratio of 1: p (where 0.9 ≦ p ≦ 1.1) and having the same mechanical properties as this stainless steel wire Consists of. Here, the first portion 11a and the seventh portion 11g are substantially located in the first plane, the second portion 11b and the sixth portion 11f are substantially located in the second plane, and the third portion 11c and the fifth portion 11e are The fourth portion 11d is located substantially in the fourth plane. The long side of the rectangular cross section of the metal wire is substantially parallel to the first plane, the second plane, the third plane, and the fourth plane. In this case, the second plane on which the second portion 11b and the sixth portion 11f are located is inclined at an angle θ ₁ with respect to the first plane on which the first portion 11a and the seventh portion 11g are located. The third plane on which the third portion 11c and the fifth portion 11e are located is inclined at an angle θ ₂ on the same side as the first plane with respect to the second plane on which the second portion 11b and the sixth portion 11f are positioned. Yes. The fourth plane on which the fourth portion 11d is located is inclined at an angle θ ₃ on the same side as the first plane with respect to the third plane on which the third portion 11c and the fifth portion 11e are located. θ ₁ , θ _2, and θ ₃ are 5 ° to 20 °, typically 5 ° to 15 °, preferably 7 ° to 13 °, for example, 10 °. Typically, θ ₁ = θ ₂ = θ ₃ , but is not limited to this. If necessary, it may be different from each other and theta ₁ of theta ₁ and the right half of the left half of the dental wire 11 may be made different from the _second left half theta and theta ₂ of the right half from each other The left half θ ₃ and the right half θ ₃ may be different from each other. The first portion 11 a has a length L ₁ that can be stretched over the first molar on the left or right side of the upper or lower jaw of a patient performing dental treatment. The second portion 11b has a length L ₂ that can be passed tension on the left or right side of the second premolar. The third portion 11c has a length L ₃ that can be passed tension to the left or right side of the first premolar. The fourth portion 11d has a length L ₄ which can be passed tension across the front teeth. The fifth portion 11e has a length L ₅ that can be passed tension to the left or right side of the first premolar. The sixth portion 11f has a length L ₆ that can be passed tension on the left or right side of the second premolar. Seventh portion 11g has a length L ₇ that can be passed tension to the left or right side of the first molar. L _{1 to} L ₇ are appropriately selected according to the patient performing dental treatment. To give a specific example, the length L ₁ of the first portion 11a and the length L ₇ of the seventh portion 11g are, for example, 5 mm or more and 18 mm. Hereinafter, the length L ₂ of the second portion 11b and the length L ₆ of the sixth portion 11f are, for example, 4 mm to 10 mm, and the length L ₃ of the third portion 11c and the length L ₅ of the fifth portion 11e are, for example, 4 mm. The length L ₄ of the fourth portion 11d is, for example, 30 mm or more and 80 mm or less. The bent portion at the boundary between the first portion 11a and the second portion 11b is the tip back bend portion B _TB , and the bent portion at the boundary between the second portion 11b and the third portion 11c is the intermediate bend portion B _I , and the third portion 11c and the third portion 11c. A bent portion at the boundary with the four portions 11d is a torque holding bend portion _BTH . Similarly, the bent portion at the boundary between the seventh portion 11g and the sixth portion 11f is the tip back bend portion B _TB , and the bent portion at the boundary between the sixth portion 11f and the fifth portion 11e is the intermediate bend portion B _I , fifth. A bent portion at the boundary between the portion 11e and the fourth portion 11d is a torque holding bend portion _BTH .

  The metal wire having a rectangular cross-sectional shape constituting the dental treatment wire 11 is most preferably a rectangular shape of a × b = 0.016 ″ × 0.022 ″ (0.41 mm × 0.56 mm). A stainless steel wire having a cross-sectional shape is used, but is not limited thereto.

[Method of manufacturing dental treatment wire]
A first example of the method for manufacturing the dental treatment wire 11 will be described.

  As shown in FIG. 2A, a metal wire 20 having the same rectangular cross-sectional shape as the dental treatment wire 11 and curved in an arch shape in advance is prepared.

Next, as shown in FIG. 2B, the metal wire 20 is bent at an angle θ _{1 in a} direction perpendicular to the long side of the rectangle of the cross section of the metal wire 20 at a point A having a length L ₁ from one end, 11a is formed.

Next, as shown in FIG. 2C, the metal wire 20 is bent at the angle θ ₂ in the same manner from the point A to the point B of the length L ₂ to form the second portion 11b.

Next, as shown in FIG. 2D, the metal wire 20 is bent at the angle θ ₃ in the same manner from the point B to the point C having the length L ₃ to form the third portion 11c.

Next, as shown in FIG. 2E, similarly, the metal wire 20 is bent from the other end by an angle θ _{1 at a} point D having a length L ₇ to form a seventh portion 11g.

Next, as shown in FIG. 2F, the metal wire 20 is bent at the angle θ ₂ in the same manner from the point D to the point E having a length L ₆ to form the sixth portion 11f.

Next, as shown in FIG. 2G, the metal wire 20 is bent at the angle θ ₃ in the same manner from the point E to the point F having a length L ₅ to form the fifth portion 11e. A portion between the third portion 11c and the fifth portion 11e of the metal wire 20 becomes a fourth portion 11d.

  Thus, as shown in FIG. 2H, the intended dental treatment wire 11 is manufactured.

  A second example of the method for manufacturing the dental treatment wire 11 will be described.

  As shown in FIG. 3A, a linear metal wire 20 having a length corresponding to the entire length of the dental treatment wire 11 and having the same rectangular cross-sectional shape as the dental treatment wire 11 is prepared.

Next, as shown in FIG. 3B, the metal wire 20 is bent at an angle θ _{1 in a} direction perpendicular to the long side of the rectangle of the cross section of the metal wire 20 at a point A having a length L ₁ from one end. 11a is formed.

Next, as shown in FIG. 3C, the metal wire 20 is bent at the angle θ ₂ in the same manner from the point A to the point B of the length L ₂ to form the second portion 11 b.

Next, as shown in FIG. 3D, the metal wire 20 is bent at the angle θ ₃ in the same manner from the point B to the point C of the length L ₃ to form the third portion 11c.

Next, as shown in FIG. 3E, similarly, the metal wire 20 is bent from the other end by an angle θ _{1 at a} point D having a length L ₇ to form a seventh portion 11g.

Next, as shown in FIG. 3F, the sixth portion 11f is formed by bending the angle θ ₂ in the same manner from the point D to the point E having the length L ₆ .

Next, as shown in FIG. 3G, the fifth portion 11e is formed by bending the angle θ ₃ in the same manner from point E to point F having a length L ₅ . A portion between the third portion 11c and the fifth portion 11e of the metal wire 20 becomes a fourth portion 11d.

  Next, as shown in FIG. 3H, the entire metal wire 20 bent in six places is bent in an arch shape.

  Thus, the intended dental treatment wire 11 is manufactured.

  A third example of the method for manufacturing the dental treatment wire 11 will be described.

  In this manufacturing method, after the straight metal wire 20 is curved in an arch shape, the points A, B, C, D, E, and F are the same as in the manufacturing method shown in FIGS. The dental treatment wire 11 is manufactured by bending at the six points.

  A fourth example of the method for manufacturing the dental treatment wire 11 will be described.

  In this manufacturing method, an arch-shaped or linear metal wire 20 is prepared, and this metal wire 20 is press-molded using a predetermined mold to thereby provide points A, B, C, D, E. Then, the dental treatment wire 11 is manufactured by bending at six points of F and F at a time.

[Pliers for manufacturing wires for dental treatment]
A pliers for producing a dental treatment wire suitable for use in producing the dental treatment wire 11 by bending will be described.

  FIG. 4 is a side view of the pliers 100 for manufacturing a dental treatment wire, FIG. 5 and FIG. 6 are perspective views seen from two different directions, and FIG. 7 is a side view of a state in which the jaw is closed. FIG. 8 shows a front view with the jaws closed.

  As shown in FIGS. 4 to 8, the pliers 100 for manufacturing a dental treatment wire have a first arm 101 and a second arm 102. The 1st arm 101 and the 2nd arm 102 have the shape curved in the substantially S shape which consists of a gentle curve as a whole. FIG. 4 shows a state in which the first arm 101 and the second arm 102 are opened. The first arm 101 and the second arm 102 are connected to each other in an X shape by a connecting shaft 103 so as to be rotatable around the connecting shaft 103. The connecting shaft 103 is composed of a cylindrical convex portion provided on the surface of the first arm 101 facing the second arm 102, and this convex portion is provided on the surface of the second arm 102 facing the first arm 101. It is fitted in a cylindrical hole.

  The first arm 101 has a jaw 104 at the front end and a grip 105 on the rear end side. The outer surface of the handle 105 is covered with a grip 106 made of, for example, a tubular plastic molded product. Similarly, the 2nd arm 102 has the jaw part 107 in the front end, and has the grip handle 108 in the rear end side. The outer surface of the grip handle 108 is covered with a grip 109 made of, for example, a plastic molded product. The material of the first arm 101 and the second arm 102 is not particularly limited as long as it is a material having a sufficiently high mechanical strength capable of bending a metal wire such as a stainless steel wire. For example, a steel material (carbon Tool steel, machine structural carbon steel, etc.).

A clamping part 110 is provided on the distal end side of the jaw part 104 of the first arm 101 in a state of protruding slightly inward. Similarly, a clamping portion 111 is provided on the distal end side of the jaw portion 107 of the second arm 102 in a state of slightly protruding inward. 9A is a cross-sectional view of the holding portion 110 of the jaw 104 of the first arm 101 (enlarged sectional view taken along the line AA in FIG. 4), and FIG. 9B is a holding portion of the jaw 107 of the second arm 102. FIG. 9C is a cross-sectional view showing the sandwiching portion 110 and the sandwiching portion 111 in a state where the jaw portion 104 and the jaw portion 107 are closed. . As shown in FIGS. 4 to 8 and 9A, the first arm 101 is placed on the surface of the clamping part 110 of the jaw part 104 of the first arm 101 facing the clamping part 111 of the jaw part 107 of the second arm 102. A convex portion 112 (see FIG. 5) having a triangular prism shape is provided so as to extend along the direction. Further, as shown in FIGS. 4 to 8 and FIG. 9B, the second arm is formed on the surface of the clamping part 111 of the jaw part 107 of the second arm 102 facing the clamping part 110 of the jaw part 104 of the first arm 101. A triangular prism-shaped recess 113 (see FIG. 6) extending in a direction along the line 102 is provided. As shown in FIG. 9A, the apex angle φ ₁ of the triangle in the cross section perpendicular to the longitudinal direction of the convex part 112 of the clamping part 110 of the jaw part 104 of the first arm 101 is 160 ° or more and 175 ° or less. It is determined according to θ ₁ , θ ₂ , θ ₃ of the dental treatment wire 11 to be manufactured. Similarly, as shown in FIG. 9B, the apex angle φ ₂ of the triangle in the cross section perpendicular to the longitudinal direction of the concave portion 113 of the clamping portion 111 of the jaw portion 107 of the second arm 102 is 160 ° or more and 175 ° or less. Specifically, it is selected to be the same as the apex angle φ ₁ of the triangle in the cross section perpendicular to the longitudinal direction of the convex part 112 of the clamping part 110 of the jaw part 104 of the first arm 101. When the first arm 101 and the second arm 102 are rotated around the connecting shaft 103 to close the jaw portion 104 of the first arm 101 and the jaw portion 107 of the second arm 102, the jaw portion of the first arm 101 The convex part 112 of 104 clamping part 110 and the recessed part 113 of the clamping part 111 of the jaw part 107 of the 2nd arm 102 are comprised so that it may mutually fit. FIG. 9C shows a state where the convex part 112 of the clamping part 110 of the jaw part 104 of the first arm 101 and the concave part 113 of the clamping part 111 of the jaw part 107 of the second arm 102 are fitted together.

[How to use pliers for manufacturing wires for dental treatment]
A method of using the above pliers 100 for manufacturing a dental treatment wire will be described. Here, although the case where a dental treatment wire is manufactured using an arch-shaped metal wire is considered, the same applies to the case where a linear metal wire is used.

  As shown in FIGS. 10 and 11, a person who manufactures the dental treatment wire 11 holds the arch-shaped metal wire 20 in one hand (not shown), and the other hand (not shown) The treatment wire manufacturing pliers 100 have a grip handle 106 of the first arm 101 and a grip handle 109 of the second arm 102. Next, with the jaw portion 104 of the first arm 101 and the jaw portion 107 of the second arm 102 slightly opened, the convex portion 112 of the clamping portion 110 of the jaw portion 104 and the concave portion 113 of the clamping portion 111 of the jaw portion 107. Pass the metal wire 20 between them. The direction in which the metal wire 20 is passed is a direction orthogonal to the plane formed by the first arm 101 and the second arm 102 and orthogonal to the extending direction of the convex portion 112 and the concave portion 113. Next, the grip handle 106 of the first arm 101 and the grip handle 109 of the second arm 102 are gripped to close the jaw portion 104 and the jaw portion 107, and the metal wire 20 is sandwiched between the convex portion 112 and the concave portion 113. . This state is shown in FIG. 12A. Next, when the grip handle 106 of the first arm 101 and the grip handle 109 of the second arm 102 are gripped more firmly and the jaw portion 104 and the jaw portion 107 are further closed, as shown in FIG. When the central portion of the metal wire 20 supported by is pushed by the tip of the convex portion 112, the metal wire 20 begins to bend. The jaw 104 and the jaw 107 are closed to the limit by grasping the first arm 101 and the second arm 102 more firmly, and the metal wire 20 is completely sandwiched between the slope of the projection 112 and the slope of the recess 113. Touch in contact. After this state is continued for a certain period of time, the gap between the grip handle 106 of the first arm 101 and the grip handle 109 of the second arm 102 is widened to open the jaw portion 104 and the jaw portion 107, and the metal wire that has been bent is finished. 20 is taken out. Then, the position of the metal wire 20 in the longitudinal direction is shifted and the same bending process as described above is performed, and the target dental treatment wire 11 is manufactured as shown in FIGS.

[How to use the dental treatment wire 11]
As an example, a method of using the dental treatment wire 11 in orthodontic treatment will be described. When using the dental treatment wire 11, tooth extraction is not performed in advance, but leveling and alignment of upper and / or lower teeth for orthodontic treatment, correction of the dental arch form, and some correction of torsional teeth (about 80%) etc. in advance.

  Thus, when the upper teeth and / or lower teeth are in a state suitable for starting the orthodontic treatment using the dental treatment wire 11, the orthodontic treatment using the dental treatment wire 11 is performed. In this state, the crown portions of the teeth are usually aligned to some extent, but the directions of the tooth axes are different.

  FIG. 13A is a view of upper teeth viewed from the inside of the oral cavity, and FIG. 13B is a view of lower teeth viewed from the oral cavity to the lower side. 13A and B, reference numerals 1L and 1R are left and right middle incisors, 2L and 2R are left and right side incisors, 3L and 3R are left and right canines, and 4L and 4R are left sides, respectively. And right first premolars, 5L and 5R are left and right second premolars, 6L and 6R are left and right first premolars, respectively, and 7L and 7R are left and right second premolars, respectively. 8L and 8R represent the left and right third molars, respectively. However, FIGS. 13A and 13B show a case where the teeth are arranged almost ideally.

  As shown in FIG. 13A, upper central incisors 1L and 1R, side incisors 2L and 2R, canines 3L and 3R, first premolars 4L and 4R, and second premolars 5L and 5R in front of the crown portion. The bracket 201 is bonded to the substantially central portion using a dental adhesive, and the bondable tube 202 is similarly bonded to the substantially central portion of the front surface of the crown portion of the first molars 6L and 6R. Then, the first portion 11a, the fourth portion 11d, and the seventh portion 11g are turned up with respect to the second portion 11b, the third portion 11c, the fifth portion 11e, and the sixth portion 11f of the dental treatment wire 11, and the first portion 11a. The dental treatment wire 11 is bent so that the second portion 11b, the third portion 11c, the fourth portion 11d, the fifth portion 11e, the sixth portion 11f, and the seventh portion 11g are included in substantially the same plane. The second portion 11b, the third portion 11c, the fourth portion 11d, the fifth portion 11e, and the sixth portion 11f of the dental treatment wire 11 are passed through the slots of these brackets 201 in a state where the dental treatment is performed. The first portion 11a and the seventh portion 11g of the wire 11 are passed through the bondable tube 202, and the first portion 11a protruding rearward from the bondable tube 202 By bending the free end portion of the preliminary seventh portion 11g for fixing the first portion 11a and a seventh portion 11g, Bonn double tube 202. As a result, the first portion 11a is attached to the front surface of the left crown portion of the first molar 6L, the second portion 11b is attached to the front surface of the left second premolar tooth 5L, and the third portion 11c. Is attached to the front surface of the crown portion of the left first premolar 4L, and the fourth portion 11d is formed on the left and right central incisors 1L and 1R, side incisors 2L and 2R and canine teeth 3L and 3R. The fifth portion 11d is attached to the front surface of the crown portion of the right first premolar 4R, the sixth portion 11f is attached to the front surface of the crown portion of the right second premolar 5R, The seventh portion 11g is attached to the front surface of the crown portion of the right first molar 6R. Thereafter, a bondable tube in which one end of a power chain (not shown) selected so that an appropriate horizontal correcting force works in consideration of an appropriate correcting force is attached to one of the first molars 6L and 6R. 202 hooks (see FIG. 15F) and fixed, hooked to each bracket 201 attached to the maxillary anterior teeth, etc. while extending the power chain, and attached to the hook of the bondable tube 202 attached to the other of the first molars 6L and 6R. Hook the other end of the power chain and fix it. As shown in FIG. 13B, the dental treatment wire 11 is similarly attached to the lower jaw tooth, and the power chain is hooked. The proper horizontal correction force is, for example, a stainless steel wire having a rectangular cross-sectional shape of 0.41 mm × 0.56 mm (0.016 ″ × 0.022 ″), and the front teeth Is generally a force of 100 to 200 g.

  FIG. 14 is a perspective view showing a state where the dental treatment wire 11 is attached to the maxillary and mandibular teeth. However, in FIG. 14, only the part which is not covered with gingiva and is exposed to the outside is shown for both the upper and lower jaw teeth.

  The torque angle, angulation angle, offset angle and span (distance between the outer sides of the left and right wings) of the bracket 201 are determined for each tooth. As an example of the bracket 201, the brackets 201 for the maxillary right middle incisor, the maxillary right side incisor, the maxillary right canine, the maxillary right first premolar, and the maxillary right second premolar are shown in FIGS. Show. An example of the bondable tube 202 for the first molars 6L and 6R is shown in FIG. 15F. As an example, the case of using “Microarch Formula R (loss type) maxilla” manufactured by Tommy International Co., Ltd. is as follows. The bracket 201 for the maxillary central incisor shown in FIG. 15A has a torque angle of 12 °, an angulation angle of 5 °, an offset angle of 0 °, a span of 3.4 mm, and a bracket for the maxillary incisor shown in FIG. 15B. The torque angle of 201 is 8 °, the angulation angle is 9 °, the offset angle is 0 °, the span is 2.6 mm, the torque angle of the bracket 201 for the maxillary canine shown in FIG. 15C is −2 °, and the angulation angle Is 10 °, the offset angle is 4 °, the span is 2.6 mm, the torque angle of the bracket 201 for the maxillary right first premolar and the maxillary right second premolar shown in FIGS. The adjustment angle is 0 °, the offset angle is 2 °, and the span is 2.6 mm. 15A to 15E, reference numeral 201a indicates a slot of the bracket 201. The cross-sectional shape of the slot 201a is generally almost rectangular. The bondable tube 202 has a torque angle of −14 °, an angulation angle of 0 °, an offset angle of 14 °, and a span of 4.0 mm.

  The use of the dental treatment wire 11 enables three-dimensional tooth movement without causing any damage to the tissue even if the tooth is not extracted in advance, as a result of the inventor performing orthodontic treatment for many years. It has been proved by. The mechanism that enables three-dimensional movement of the tooth body by using the dental treatment wire 11 without extracting a tooth in advance has not been theoretically completely elucidated yet, but the following is a theoretical explanation of this mechanism. Try to explain.

As already described, the dental treatment wire 11 has the tip back bend part B _TB , the second part 11b and the third part 11c at the boundary between the first part 11a and the second part 11b, as shown in FIGS. An intermediate bend portion B _I at the boundary between them, a torque holding bend portion B _{TH at} the boundary between the third portion 11c and the fourth portion 11d, a tip back bend portion B _{TB at} the boundary between the seventh portion 11g and the sixth portion 11f, An intermediate bend portion B _I is provided at the boundary between the sixth portion 11f and the fifth portion 11e, and a torque holding bend portion B _TH is provided at the boundary between the fifth portion 11e and the fourth portion 11d. Therefore, when the dental treatment wire 11 is passed through the slot 201a and the bondable tube 202 of each bracket 201, the fourth portion 11d has the second portion 11b, the third portion centered on the torque holding bend portion _BTH . With respect to the portion 11c, the fifth portion 11e, and the sixth portion 11f, the dental treatment wire 11 for the maxillary teeth is bent downward as shown in FIG. 16 to form the dental treatment wire 11 for the mandibular teeth. In that case, it bends upward as shown in FIG. In addition, the first portion 11a and the seventh portion 11g have upper tip dentistry with respect to the second portion 11b, the third portion 11c, the fifth portion 11e, and the sixth portion 11f with the tip back bend portion B _TB as the center. The treatment wire 11 is bent downward as shown in FIG. 16, and the dental treatment wire 11 for the lower jaw is bent upward as shown in FIG. As a result, the first portion 11a, the seventh portion 11c, and the fourth portion 11d are located in substantially the same plane. On the other hand, the second portion 11b and a sixth portion 11f is bent relative to the first portion 11a and a seventh portion 11g around the tip back bend B _TB, and a third portion around the middle bend portion B _I As a result of being bent with respect to 11c and the fifth portion 11e, the dental treatment wire 11 for the maxillary teeth is bent upward in a mountain shape as shown in FIG. 16, and the dental treatment wire 11 for the mandibular teeth. In this case, as shown in FIG. Similarly, the third portion 11c and the fifth portion 11e is about the middle bend portion B _I have bent with respect to the second portion 11b and a sixth portion 11f, and the centering torque holding bend B _TH As a result of being bent with respect to the four portions 11d, the dental treatment wire 11 for the maxillary teeth is bent in an upward shape as shown in FIG. 16, and the dental treatment wire 11 for the mandibular teeth is provided. As shown in FIG. 17, it bends downward in a mountain shape. The intermediate bend portion B _I of the boundary between the second portion 11b and the third boundary between the portion 11c intermediate the bend B _I and the sixth portion 11f and the fifth portion 11e, the first portion 11a and the seventh portion 11c When the fourth portion 11d and are at a distance Δ from a plane located, as a result, the vertex of chevron-shaped curvature of the second portion 11b and a sixth portion 11f is slightly offset to the middle bend portion B _I side, the tripartite 11c and vertices of chevron-shaped curvature of the fifth portion 11e is also slightly offset to the middle bend portion B _I side. The chevron shape of the curved shape of the second portion 11b and mountain-like curved shape and the third part 11c and the fifth portion 11e of the sixth portion 11f, are almost symmetrically around the middle bend portion B _I. If the curvature of the second portion 11b, the third portion 11c, the fifth portion 11e, and the sixth portion 11f is ignored, the dental treatment wire 11 as a whole is located in substantially the same plane. At this time, due to the elasticity of the dental treatment wire 11, in the dental treatment wire 11 for the maxillary teeth, a force that restores the original position indicated by the one-dot chain line with respect to the fourth portion 11 d is an arrow in FIG. 16. In the dental treatment wire 11 for the lower jaw teeth, the force that restores to the original position indicated by the alternate long and short dash line with respect to the fourth portion 11d is illustrated in FIG. As shown by an arrow 17 in FIG. 17, it acts vertically downward with respect to the fourth plane, and in any case, a torque in the rotational direction that inclines the front teeth toward the labial side is applied. This force becomes a correction force in a substantially vertical direction. This force is greater closer to the torque holding bend B _TH, central incisor, lateral incisor, increases in the order of canine, shows the situation in the length of the vertical arrow in FIG. 16 and FIG. 17. On the other hand, since the power chain is hooked on each bracket and the bondable tube as described above, a substantially horizontal correcting force acts on the lingual side of the dental treatment wire 11.

  18A is attached to maxillary left and right central incisors 1L and 1R, maxillary left and right incisors 2L and 2R, maxillary left and right canines 3L and 3R, and maxillary left and right first premolars 4L and 4R, respectively. 1 shows an example of a state in which the dental treatment wire 11 is passed through the slot 201a of the bracket 201, and the dental arch is deployed in a plane parallel to the frontal surface so that the dental treatment wire 11 is positioned in the plane. FIG. In FIG. 18A, reference numerals 201b and 201c denote mesial and distal wings of the bracket 201, respectively. FIGS. 18B to 18I show upper right first premolar 4R, upper right canine 3R, upper right incisor 2R, upper right central incisor 1R, upper left central incisor 1L, upper left left incisor 2L, respectively. It is the cross-sectional view which expanded the dental treatment wire 11 in the slot 201a of the bracket 201 each attached to the upper left canine 3L and the upper left first premolar 4L, and the left side of each figure is a front side. What is important here is that the dental treatment wire 11 has the first long premolars 4L and 4R where the long side of the rectangular cross section is substantially horizontal, whereas the left maxillary and right central incisors 1L. 1R, maxillary left and right incisors 2L and 2R, and maxillary left and right canines 3L and 3R are rotated and twisted around the central axis of the dental treatment wire 11 and have a rectangular cross section. That is, the side, and thus the upper surface of the dental treatment wire 11 is inclined so that the inner side is lower than the horizontal direction. FIG. 19 shows an enlarged portion from the upper first premolar 4R to the upper right canine 3R of the dental treatment wire 11 in this state. Moreover, the top view of the wire 11 for dental treatment of this state is shown in FIG.

For a certain period after the dental treatment wire 11 is attached, the upper left and right middle incisors 1L and 1R, the upper left and right incisors 2L and 2R, and the upper left and right canines 3L and 3R are mounted on the bracket 201. The dental treatment wire 11 in the slot 201a is usually in surface contact with the bottom surface or side surface of the slot 201a. After a certain period of time has elapsed since the attachment of the dental treatment wire 11, the torque holding bend B _TH is provided on the dental treatment wire 11, so that a force acts continuously in the direction perpendicular to the fourth plane, and the power chain As a result of the horizontal correction force, the maxillary left and right central incisors 1L and 1R, the maxillary left and right incisors 2L and 2R, and the maxillary left and right canines 3L and 3R move. 11 comes into point contact or line contact with the bottom surface and both side surfaces of the slot 201a of the bracket 201, and is thereafter fixed in this state. In other words, the dental treatment wire 11 is locked in a state of point contact or line contact with the bottom surface and both side surfaces of the slot 201a of the bracket 201. This state is shown in FIGS. That is, FIG. 21 is a cross-sectional view showing a state where the dental treatment wire 11 is passed through the slot 201a of the bracket 201 attached to the upper right central incisor 1R. FIG. 22 is a cross-sectional view showing a state in which the dental treatment wire 11 is passed through the slot 201a of the bracket 201 attached to the upper right incisor 2R. FIG. 23 is a cross-sectional view showing a state in which the dental treatment wire 11 is passed through the slot 201a of the bracket 201 attached to the upper right canine 3R. The cross-sectional shape and dimensions of the slot 201a of the bracket 201 are appropriately determined according to the dental treatment wire 11 to be used. For example, when a stainless steel wire having a rectangular cross section of 0.41 mm × 0.56 mm (0.016 ″ × 0.022 ″) is used as the dental treatment wire 11, the slot 201a has a width of 0.56 mm (width). ) × 0.71 mm (depth) (0.022 ″ × 0.028 ″) rectangular cross-sectional shape. As shown in FIGS. 21 to 23, dental wire 11 is accommodated in a state of the rotation angle Θ with respect to the slot 201a of the rectangular cross-sectional shape, one of Ling E ₁ of dental wires 11 slots The bottom surface of 201a is in point contact or line contact, and the two ridges E ₂ and E ₃ on both sides of this ridge E ₁ are in point contact or line contact with both side surfaces of the slot 201a. Θ is typically approximately equal to θ ₃ , for example, if θ ₃ is 10 °, Θ is also approximately 10 °. In FIGS. 21 to 23, for example, when the correction force F _{1 in the} substantially horizontal direction and the correction force F ₂ in the substantially vertical direction perpendicular to the fourth plane are approximately equal, F ₁ and F ₂ The angle formed by the resultant force F with the horizontal direction is approximately 45 °, for example. The same applies to the maxillary left central incisor 1L, the maxillary left side incisor 2L, and the maxillary left canine 3L. On the other hand, FIG. 24 is a sectional view showing a state where the dental treatment wire 11 is passed through the slot 201a of the bracket 201 attached to the first premolar 4R. As shown in FIG. 24, the dental treatment wire 11 is accommodated in the slot 201a in a substantially horizontal state, and any portion is in contact with the side surface or the bottom surface of the slot 201a. In this case, the dental treatment wire 11 has play in the slot 201a and is not locked. The above is the same for the upper left first premolar, the same for the upper left and right second premolars, and the same for the lower left and right first premolars and second premolars. It is.

As shown in FIGS. 21 to 23, one ridge E ₁ of the dental treatment wire 11 is in point contact or line contact with the bottom surface of the slot 201a, and two ridges E ₂ and E _{3 on} both sides of the ridge E ₁ are formed. After being locked in a state of point contact or line contact with both side surfaces of the slot 201a, each bracket 201 attached to the maxillary right middle incisor 1R, maxillary right side incisor 2R and maxillary right canine 3R has dental treatment. The wire 11 has a substantially horizontal correction force F ₁ and a substantially vertical correction force F ₂ perpendicular to the fourth plane, and as a result, the resultant force F of F ₁ and F ₂ is applied to each bracket 201 and thus this bracket. 201 is added to the crown portion of the tooth to which 201 is attached. As shown in FIGS. 13A and B, the substantially horizontal correction force F ₁ is finally set to a temporary point P (for example, the dental arch is reflected by the curvature of the dental arch). It faces the point in the horizontal plane and the midplane. However, the point P does not mean an exact point, but means a region having a certain spread, for example, a circular region having a diameter of about 1 to 10 mm. As a result of the resultant force F applied to the maxillary right middle incisor 1R, maxillary right side incisor 2R and maxillary right canine 3R, finally set as the intersection of the extension lines of the central axes (or tooth axes) of the roots of these teeth These teeth move in a three-dimensional manner so that the roots of these teeth are aligned toward a temporary point (herein referred to as a gathering point GP). However, the set point GP does not mean an exact point, but means a region having a certain spread, for example, a spherical region having a diameter of about 1 to 10 mm. Since the dental treatment wire 11 is in point contact or line contact with the slot 201a as described above, the frictional force between the dental treatment wire 11 and the slot 201a is greatly increased when the tooth body moves. The dental treatment wire 11 can move smoothly in the slot 201a. As a result, not only the correction force in the horizontal direction is small, but also the tooth movement can be performed more quickly and smoothly. The same applies to the maxillary left central incisor 1L, the maxillary left side incisor 2L, and the maxillary left canine 3L, and further, the mandibular left and right central incisors, the mandibular left and right incisors, and the mandibular left side. The same applies to the right canine. As described above, the three-dimensional tooth movement of the front teeth is possible, and finally the roots of each tooth can be radially aligned toward the set point GP.

FIG. 25 shows how three-dimensional tooth movement occurs in this way. In FIG. 25, reference numeral 301 indicates alveolar bone, 302 indicates periodontal ligament, 303 indicates teeth, and 304 indicates gingiva. As described above, a substantially horizontal correction force F ₁ and a substantially vertical correction force F ₂ are applied to the teeth 303 by the bracket, and the resultant force F is applied to the teeth 303. As a result, the teeth 303 are indicated by a one-dot chain line. The tooth body moves in three dimensions. At this time, since jigging is not performed, root absorption of the teeth 303 can be effectively prevented.

On the other hand, as shown in FIG. 24, the bracket 201 attached to the first premolar 4R has the dental treatment wire 11 accommodated in the slot 201a in a substantially horizontal state, so that the correction force in the substantially horizontal direction is obtained. F ₁ works. In addition to this, in the bracket 201 attached to the first premolar 4R, as shown in FIG. 16, the third portion 11c and the fifth portion 11e of the dental treatment wire 11 are curved upward in a mountain shape. As a result, an almost upward force (F ₄ described later) works. As a result, the resultant force of F ₁ and F ₄ is applied to the bracket 201 attached to the first premolar 4R, and thus to the crown portion of the first premolar 4R. As a result of applying this resultant force, finally, the first premolar 4R moves the tooth body so that the extension line of the central axis of the root of the tooth is directed to the set point GP. The above is the same for the upper left first premolar, the same for the upper left and right second premolars, and the same for the lower left and right first premolars and second premolars. It is.

  A method of performing orthodontic treatment using the dental treatment wire 11 will be described more specifically by taking as an example the case of performing orthodontic treatment of upper teeth. The same applies to orthodontic treatment of the lower jaw teeth.

In this case, as shown in FIG. 26A, the wire is made of stainless steel wire having a rectangular cross-sectional shape of 0.41 mm × 0.56 mm (0.016 ″ × 0.022 ″), and θ ₁ = θ ₂ = θ ₃ = Use the dental treatment wire 11 of 10 °. At this time, the length L ₆ of the sixth portion 11f is determined by the boundary between the right second premolar 5R and the first molar 6R and the boundary between the second premolar 5R and the first premolar 4R. Chosen to be approximately equal to the distance between. Further, the length L ₅ of the fifth portion 11e is the distance between the boundary portion between the right second premolar 5R and the first premolar 4R and the boundary portion between the first premolar 4R and the canine 3R. Chosen almost equally. Similarly, the length L ₂ of the second portion 11b has a boundary portion between the left second premolars 5L and first molar 6L, the second premolar 5L and the boundary portion between the first premolar 4L Chosen to be approximately equal to the distance between. The length L ₃ of the third portion 11c has a boundary portion between the second premolar 5L and first premolar 4L of the left, the distance between the boundary portion between the first premolar 4L and canines 3L Chosen almost equally.

First, the bracket 201 is bonded to the front surface of the crown portion of each of the patient's upper anterior teeth and premolars, and the bondable tube 202 is bonded to the front surfaces of the crown portions of the first molars 6R and 6L. The dental treatment wire 11 is attached to the bracket 201 and the bondable tube 202 in the manner described above. Thus, the dental treatment wire 11 is fixed to the maxillary teeth using the bracket 201 and the bondable tube 202. Thereafter, as described above, a power chain (not shown) is hooked on the bracket 201 and the bondable tube 202. FIG. 26B shows the dental arch with the dental treatment wire 11 attached as seen from the right side. At this time, tip back bend B _TB of the boundary between the first portion 11a and a second portion 11b in the vicinity of the boundary between the second premolar 5L and first molar 6L on the left side, the second portion 11b and the third portion middle bend portion B _I of the boundary between 11c in the vicinity of the boundary portion between the second premolar 5L and first premolar 4L, torque holding bend B _TH of the boundary between the third portion 11c and the fourth portion 11d is first in the vicinity of the boundary portion between the bicuspid 4L and canines 3L, torque holding bend B _TH of the boundary between the fourth portion 11d and the fifth portion 11e is in the vicinity of the boundary portion between the first premolar 4R and canines 3R right , middle bend portion B _I of the boundary between the fifth portion 11e and the sixth portion 11f at the boundary between the second near the boundary between the premolars 5R and first premolar 4R, sixth portion 11f and the seventh portion 11g the tip-back bend B _TB second premolar 5R and the first It comes to come near the boundary part with molar 6R, respectively.

When the dental treatment wire 11 is attached to the patient's upper teeth as described above, the tooth is finally moved three-dimensionally so that the extension line of the central axis of those roots is directed to the set point GP. Similarly, the first premolars 4L and 4R and the second premolars 5L and 5R also move the tooth bodies so that the extension lines of the central axes of their roots are directed to the set point GP. At this time, as shown in FIG. 26B, the fifth portion 11e, the sixth portion 11f, the second portion 11b, and the third portion 11c of the dental treatment wire 11 (the second portion 11b and the third portion 11c are shown in FIG. 26B). (Not shown) are curved in a mountain shape on the upper side, but in the slot 201a of the bracket 201 attached to the front surface of the crown portion of the first premolars 4L and 4R and the second premolars 5L and 5R. When the dental treatment wire 11 is accommodated, the upward bending of the dental treatment wire 11 is limited by the slot 201a. Moreover, as already mentioned, the apex of the chevron-shaped curvature of the second portion 11b and a sixth portion 11f is slightly offset to the middle bend portion B _I side of the third portion 11c and a fifth portion 11e chevron shaped the tips of the loop is slightly shifted to the middle bend portion B _I side. Therefore, the dental treatment wire 11 is separated from the upper side surface of the slot 201a of the wing 201b on the mesial side in the slot 201a of the bracket 201 attached to the front surface of the crown portion of the second premolars 5L and 5R. In the slot 201a of the bracket 201 attached to the front surface of the crown portion of the first premolar 4L and 4R, conversely, in the state of contacting the lower side surface of the slot 201a of the side wing 201c, The wing 201c comes into contact with the upper side surface of the slot 201a and the lower side surface of the slot 201a of the mesial wing 201b. As a result, an upward force F ₃ in a direction slightly inclined forward with respect to the vertical direction is applied to the second premolars 5L and 5R, and the first premolars 4L and 4R are rearward with respect to the vertical direction. An upward force F ₄ in a slightly inclined direction is applied. In this case, the tip back of the first molars 6L and 6R is applied to the first molars 6L and 6R by the first part 11a and the seventh part 11g of the dental treatment wire 11 with the second premolars 5L and 5R as fulcrums. In this case, since the upward force F ₃ is applied to the second premolars 5L and 5R serving as fulcrums as described above, the second premolars 5L and 5R are prevented from protruding. can do. In addition, since the component in the direction along the dental arch of F ₃ and the component in the direction along the dental arch of F ₄ are opposite to each other and have substantially the same size, the first premolar 4L in the direction along the dental arch and It does not contribute to the movement of 4R and the second premolars 5L and 5R. Furthermore, since the second portion 11b, the third portion 11c, the fifth portion 11e and the sixth portion 11f of the dental treatment wire 11 have play and are not locked in the slot 201a of the bracket 201, the first molar tooth 6L and 6R, the second premolars 5L and 5R and the first premolars 4L and 4R and the lower first molars 6L and 6R, the second premolars 5L and 5R, and the first premolars 4L and 4R It can be prevented from being damaged. Orthodontics is performed as described above.

[Case]
A case in which orthodontic treatment of four patients is performed without using a dental extraction wire 11 in advance will be described.

Patient 1
27A to 27C are photographs obtained by photographing the upper and lower jaw teeth at the first visit of the patient 1 before orthodontic treatment from the front, right side, and left side. As shown in FIGS. 27A to 27C, the patient 1 has a skeletal mandibular frontal protrusion, and the maxillary left central incisor and side incisors retreat to the lingual side (lingual translocation), resulting in malocclusion.

  28A to 28C, before starting to use the dental treatment wire 11, leveling and alignment of the upper and lower teeth, correction of the dental arch form, some correction of the torsional teeth (about 80%), and the like. Therefore, a state in which the NiTi orthodontic superelastic wire generally used in the early stage of orthodontic treatment has been attached to the upper and lower teeth is shown. However, FIGS. 28A to 28C are photographs of upper and lower jaw teeth taken from the front, right side and left side.

  FIGS. 29A to 29C are photographs of upper and lower jaw teeth of patient 1 taken from the front, the right side, and the left side after about one month and three weeks have passed since the orthoelastic superelastic wire was attached to the upper and lower teeth. As shown in FIGS. 29A to 29C, in this state, leveling and alignment of the maxillary teeth and the mandibular teeth are being performed.

  FIGS. 30A to C are photographs of the upper and lower jaw teeth of patient 1 taken from the front, right side, and left side after about 2 weeks have passed since the orthoelastic superelastic wire was attached to the upper and lower teeth. As shown in FIGS. 30A to 30C, in this state, the leveling and alignment of the upper and lower teeth are further advanced.

31A to 31C are photographs of upper and lower jaw teeth of patient 1 taken from the front, right side, and left side after about 2 months have passed since the orthoelastic superelastic wire was attached to the upper and lower teeth. As shown in FIGS. 31A to 31C, in this state, the leveling and alignment of the lower jaw teeth are almost completed, and the use of the dental treatment wire 11 can be started. Therefore, as shown in FIGS. 31A to 31C, the dental treatment wire 11 was attached to the lower jaw tooth as described above with the orthodontic superelastic wire attached to the upper jaw tooth. At this time, the power chain is between the bracket 201 attached to the left canine 3L and the bondable tube 202 attached to the left first molar 6L and to the bracket 201 attached to the right canine 3R. It hooked between the bondable tube 202 attached to the right first molar 6R. As the bracket 201 and the bondable tube 202, “Microarch Formula R (loss type) mandible” manufactured by Tommy International Co., Ltd. was used. The slot 201a of the bracket 201 has a rectangular cross-sectional shape of 0.56 mm × 0.71 mm (0.022 ″ × 0.028 ″). A photograph of the dental treatment wire 11 used is shown in FIG. 32A. This dental treatment wire 11 is a stainless steel wire having a rectangular cross section of 0.41 mm × 0.56 mm (0.016 ″ × 0.022 ″), and θ ₁ = θ ₂ = θ ₃ = 10 °. As a power chain, “Pro Chain (Elastomeric Chain for Orthodontics) Part No. 505-0036 Medium Force M Space” manufactured by Dentsu Supply Sankin Co., Ltd. was used. A photograph of the power chain used is shown in FIG. 32B. This power chain uses thermosetting polyurethane, and in the initial unstretched state, a ring with an inner diameter of about 1.2 mm and an outer diameter of about 3 mm is connected with a pitch of about 3.7 mm. .5 mm.

  FIGS. 33A to 33C are photographs obtained by photographing the upper and lower jaw teeth of the patient 1 from the front side, the right side, and the left side after about one month from the attachment of the dental treatment wire 11 to the lower jaw teeth. The orthoelastic orthoelastic wire attached to the maxillary teeth is replaced with a square one from a circular one.

  34A to 34C are photographs obtained by photographing the upper and lower jaw teeth of the patient 1 from the front side, the right side, and the left side after about seven months have passed since the dental treatment wire 11 was attached to the lower jaw teeth. The orthoelastic orthoelastic wire attached to the maxillary teeth has a square cross section but is replaced with a thicker one. As shown in FIGS. 34A to 34C, it can be seen that the lingual dislocation of the maxillary left central incisor and side incisors is almost eliminated.

  FIGS. 35A to 35C are photographs of upper and lower jaw teeth of patient 1 taken from the front, right side, and left side after about two months have passed since the dental treatment wire 11 was attached to the lower jaw teeth.

  36A to 36C are photographs obtained by photographing the upper and lower jaw teeth of the patient 1 from the front side, the right side, and the left side after about 3 months have passed since the dental treatment wire 11 was attached to the lower jaw teeth. As shown in FIGS. 36A-C, it can be seen that the space of the lower teeth is completely closed and the lower teeth are well aligned.

  37A to C are photographs of upper and lower jaw teeth of patient 1 taken from the front, right side, and left side after about one month and three weeks have passed since the dental treatment wire 11 was attached to the lower jaw teeth. At this point, the dental treatment wire 11 was removed from the lower jaw teeth, and instead of the orthodontic superelastic wire having a square cross section.

  FIGS. 38A to C show the upper and lower jaw teeth of the patient 1 from the front, the right side and the right side after about 3 months after the orthodontic superelastic wire having a square cross section is attached instead of removing the dental treatment wire 11 from the lower jaw teeth. It is a photograph taken from the left side.

  39A to 39C show the upper and lower jaw teeth of the patient 1 from the front, right side after about 6 months after the orthodontic superelastic wire having a square cross section is attached instead of removing the dental treatment wire 11 from the lower jaw tooth. It is a photograph taken from the left side.

  FIGS. 40A to 40C show the upper and lower jaw teeth of the patient 1 after about two months and two weeks after the orthodontic superelastic wire having a square cross section is attached instead of the dental treatment wire 11. It is a photograph taken from the front, right side and left side. As shown in FIGS. 40A to 40C, at this time, the leveling and alignment of the upper teeth are almost completed, and the use of the dental treatment wire 11 can be started. Therefore, as shown in FIGS. 40A to 40C, as already described, the dental treatment wire 11 similar to that attached to the lower jaw teeth was attached to the upper jaw teeth.

  41A to 41C are photographs obtained by photographing the upper and lower jaw teeth of the patient 1 from the front side, the right side, and the left side after about two weeks have passed since the dental treatment wire 11 was attached to the upper jaw teeth. As shown in FIGS. 41A to 41C, it can be seen that the upper teeth are also well aligned.

  42A to 42C show that the dental treatment wire 11 and the orthoelastic wire for orthodontics attached to the maxillary and mandibular teeth respectively after about two months and three weeks after the dental treatment wire 11 was attached to the maxillary teeth. It is the photograph which removed and took the upper and lower jaw teeth of the patient 1 from the front, the right side, and the left side. As shown in FIGS. 42A to 42C, it can be seen that the lingual dislocation of the upper left central incisor and the lateral incisor is eliminated, and the upper anterior teeth and the lower anterior teeth are well aligned.

  The orthodontic treatment of the patient 1 using the dental treatment wire 11 is thus completed.

Patient 2
43A to 43C are photographs obtained by photographing the upper and lower jaw teeth at the first visit of the patient 2 before performing orthodontic treatment from the front, right side, and left side. As shown in FIGS. 43A to 43C, the patient 2 has an alveolar maxillary frontal protrusion and malocclusion.

  44A to 44C show a state in which the orthodontic superelastic wire is attached to the maxillary tooth. 44A to 44C are photographs of upper and lower jaw teeth taken from the front, right side, and left side.

  45A to 45C are photographs of upper and lower jaw teeth of patient 2 taken from the front, the right side, and the left side after about 10 months have passed since the orthoelastic wire was attached to the upper teeth. As shown in FIGS. 45A to 45C, in this state, leveling and alignment of the maxillary teeth are being performed.

  FIGS. 46A to 46C show a state in which the orthoelastic superelastic wire is also attached to the lower teeth of the patient 2 after about 7 months and 10 days have passed since the orthoelastic superelastic wire was attached to the upper teeth. 46A to 46C are photographs of upper and lower jaw teeth taken from the front, right side, and left side.

  47A to 47C are photographs of upper and lower jaw teeth of patient 2 taken from the front, right side, and left side after about 2 months have passed since the orthoelastic superelastic wire was attached to the lower jaw teeth. As shown in FIGS. 47A to 47C, in this state, the leveling and alignment of the lower jaw teeth are almost completed, and the use of the dental treatment wire 11 can be started. Therefore, as shown in FIGS. 48A to 48C, the dental treatment wire 11 was attached to the lower jaw teeth and the power chain was attached as described above. The used dental treatment wire 11 and power chain are the same as those used for treating the patient 1. The orthoelastic orthoelastic wire attached to the maxillary teeth is replaced with a square one from a circular one.

  49A to 49C are photographs obtained by photographing the upper and lower jaw teeth of the patient 2 from the front side, the right side, and the left side after about 3 weeks have passed since the dental treatment wire 11 was attached to the lower jaw teeth. In this state, the leveling and alignment of the upper teeth are almost completed, and the use of the dental treatment wire 11 can be started. Therefore, as shown in FIGS. 49A to 49C, the dental treatment wire 11 was attached to the upper teeth and the power chain was attached as described above. The used dental treatment wire 11 and power chain are the same as those used for treating the patient 1.

  50A to 50C are photographs of upper and lower jaw teeth of patient 2 taken from the front, right side, and left side after about 7 months and 1 week have passed since the dental treatment wire 11 was attached to the upper teeth. As shown in FIGS. 50A-C, it can be seen that in addition to the mandibular teeth being well aligned, the maxillary tooth space is almost completely eliminated and the maxilla teeth are also well aligned.

  51A to 51C are photographs obtained by photographing the upper and lower jaw teeth of the patient 2 from the front, the right side, and the left side after about one month and two weeks have passed since the dental treatment wire 11 was attached to the upper teeth. As shown in FIGS. 51A to 51C, it can be seen that both the upper and lower teeth are better aligned.

  52A to 52C are photographs obtained by photographing the upper and lower jaw teeth of the patient 2 from the front side, the right side, and the left side after about one month has passed since the dental treatment wire 11 was attached to the upper jaw teeth. As shown in FIGS. 52A-C, it can be seen that at this point both the upper and lower teeth are better aligned.

  53A to 53C are photographs obtained by photographing the upper and lower jaw teeth of the patient 2 from the front side, the right side, and the left side after about 6 months and 3 weeks have passed since the dental treatment wire 11 was attached to the upper teeth. As shown in FIGS. 53A to 53C, at this time, the dental treatment wire 11 is removed from both the upper teeth and the lower teeth, and the upper teeth and the lower teeth are squared again for fine adjustment of the upper teeth and the lower teeth. An orthodontic superelastic wire was attached.

  FIGS. 54A to 54C show that the orthodontic superelastic wire is removed from both the maxillary and mandibular teeth after about one year and two weeks after the orthodontic superelastic wire having a square cross section is attached to the maxillary and mandibular teeth. FIG. 3 is a photograph of the upper and lower jaw teeth of patient 2 taken from the front, right side, and left side. As shown in FIGS. 54A to 54C, it can be seen that the upper anterior teeth and the lower anterior teeth are well aligned.

  The orthodontic treatment of the patient 2 using the dental treatment wire 11 is thus completed.

  The progress after orthodontic treatment was observed. 55A to 55C are photographs obtained by photographing the upper and lower jaw teeth of the patient 2 from the front, the right side, and the left side after about 10 months have passed since the orthodontic treatment was completed. As shown in FIGS. 55A to 55C, it can be seen that the upper and lower jaw teeth of the patient 2 are hardly changed from the state immediately after the end of the orthodontic treatment. 56A to 56C are photographs obtained by photographing the upper and lower jaw teeth of the patient 2 from the front, the right side, and the left side after about 2 years have passed since the orthodontic treatment was completed. As shown in FIGS. 56A to 56C, it can be seen that the upper and lower jaw teeth of the patient 2 are hardly changed from the state immediately after the end of the orthodontic treatment. FIGS. 57A to 57C are photographs obtained by photographing the upper and lower jaw teeth of the patient 2 from the front, the right side, and the left side after about two years and six and a half months after the end of the orthodontic treatment. As shown in FIGS. 57A to 57C, it can be seen that the upper and lower jaw teeth of the patient 2 are hardly changed from the state immediately after the end of the orthodontic treatment.

Patient 3
58A to 58C are photographs obtained by photographing the upper and lower jaw teeth at the first visit of the patient 3 before performing orthodontic treatment from the front, right side, and left side. As shown in FIGS. 58A-C, patient 3 has a skeletal maxillary protrusion.

  FIGS. 59A to C show a state in which the orthoelastic superelastic wire is attached to the maxillary and mandibular teeth. However, FIGS. 59A to 59C are photographs of upper and lower jaw teeth taken from the front, right side, and left side.

  60A to 60C are photographs obtained by photographing the upper and lower jaw teeth of the patient 3 from the front, right side, and left side after about 3 months have passed since the orthoelastic wire was attached to the upper and lower teeth. As shown in FIGS. 60A to 60C, in this state, leveling and alignment of the maxillary teeth and the mandibular teeth are being performed. At this point, the orthodontic superelastic wires attached to the maxillary and mandibular teeth are removed and instead of 0.41 mm x 0.56 mm (0.016 "x 0.022") on the maxillary and mandibular teeth. A stainless steel wire with a rectangular cross-sectional shape and no bend was attached.

  FIGS. 61A to C are photographs of the upper and lower jaw teeth of patient 3 taken from the front, the right side, and the left side after about four months and two weeks have passed since the stainless steel wires without bends were attached to the upper and lower teeth. . As shown in FIGS. 61A to 61C, in this state, the leveling and alignment of the lower jaw teeth are almost completed, and the use of the dental treatment wire 11 can be started. Therefore, as shown in FIGS. 61A to 61C, while the stainless steel wire without bend is attached to the upper jaw, the dental treatment wire 11 is attached to the lower jaw as described above, and the power chain is attached. Attached. The dental treatment wire 11 and the power chain are the same as those used for treating the patient 1.

  62A to 62C are photographs obtained by photographing the upper and lower jaw teeth of the patient 3 from the front side, the right side, and the left side after about 4 months and 2 weeks have passed since the dental treatment wire 11 was attached to the lower jaw teeth. As shown in FIGS. 62A to 62C, in this state, for fine adjustment, the dental treatment wire 11 attached to the lower jaw tooth was removed, and a stainless steel wire without a bend was attached instead.

  FIGS. 63A to 63C show the front, right and left sides of the upper and lower jaw teeth of the patient 3 after about one month from the removal of the dental treatment wire 11 attached to the lower jaw teeth and the replacement of the stainless steel wire without a bend instead. It is a photograph taken from. As shown in FIGS. 63A to 63C, in this state, the stainless steel wire without bend attached to the lower jaw tooth was removed, and the dental treatment wire 11 was attached again instead.

  FIGS. 64A-C show a bendless stainless steel wire and a dental treatment wire attached to the maxillary and mandibular teeth respectively after about 4 months and 2 weeks after the dental treatment wire 11 was reattached to the mandibular teeth. 11 is a photograph of the upper and lower jaw teeth of the patient 3 taken from the front, right side, and left side. As shown in FIGS. 64A to 64C, it can be seen that both the maxillary anterior teeth and the mandibular anterior teeth are well aligned.

  Thus, the orthodontic treatment of the patient 3 using the dental treatment wire 11 is completed.

Patient 4
65A to 65C are photographs of upper and lower jaw teeth taken at the first visit of the patient 4 before orthodontic treatment, taken from the front, right side, and left side. As shown in FIGS. 65A to 65C, the patient 3 has a skeletal maxillary frontal protrusion and a deep bite with deep occlusion.

  66A to 66C show a state in which orthodontic superelastic wires are attached to the maxillary and mandibular teeth. 66A to 66C are photographs of upper and lower jaw teeth taken from the front, right side, and left side.

  67A to 67C are photographs obtained by photographing the upper and lower jaw teeth of the patient 4 from the front side, the right side, and the left side after about 6 months and one week have passed since the superelastic orthodontic wires were attached to the upper and lower jaw teeth. As shown in FIGS. 67A to 67C, in this state, leveling and alignment of the upper and lower teeth are being performed. At this point, in order to increase the interdental distance between the left central incisor and the right incisor of the lower jaw, the left central incisor and right incisor of the superelastic orthodontic wire attached to the lower jaw A weak coil spring was attached between them.

  68A-C are photographs of upper and lower jaw teeth of patient 4 taken from the front, the right side, and the left side after about 5 months and 2 weeks after attaching the orthoelastic superelastic wire to the upper and lower jaw teeth. . As shown in FIGS. 68A to 68C, in this state, the leveling and alignment of the upper teeth are almost completed, and the use of the dental treatment wire 11 can be started. Therefore, as shown in FIGS. 68A to 68C, as already described, with the superelastic orthodontic wire attached to the lower jaw tooth, the dental treatment wire 11 is attached to the upper jaw tooth, and the power chain is attached. It was. The dental treatment wire 11 and the power chain are the same as those used for treating the patient 1. The coil spring attached to the superelastic orthodontic wire attached to the lower jaw tooth was removed.

  69A to 69C are photographs obtained by photographing the upper and lower jaw teeth of the patient 4 from the front, the right side, and the left side after about two months have passed since the dental treatment wire 11 was attached to the lower jaw teeth. As shown in FIGS. 69A-C, it can be seen that the upper teeth are being well aligned at this point. At this time, the leveling and alignment of the lower jaw teeth are almost completed, and the use of the dental treatment wire 11 can be started. Therefore, as shown in FIGS. 69A to 69C, as already described, the dental treatment wire 11 is attached to the lower jaw tooth and the power chain is attached with the dental treatment wire 11 attached to the upper jaw tooth. . The dental treatment wire 11 and the power chain are the same as those used for treating the patient 1.

  70A to 70C are photographs obtained by photographing the upper and lower jaw teeth of the patient 4 from the front side, the right side, and the left side after about one month has passed since the dental treatment wire 11 was attached to the lower jaw teeth. As shown in FIGS. 70A to 70C, at this time, it is understood that the lower jaw teeth are also being well aligned and the bite is shallower. Patient 4 is still being treated.

As described above, according to the first embodiment, it is possible to realize a novel orthodontic wire 11 capable of orthodontic treatment without previously extracting a tooth. In other words, bending the orthodontic wire 11 when mounted with brackets 201 and Bonn double tube 202 to the upper jaw teeth or mandibular teeth, the fourth portion 11d around the torque holding bend B _TH is below or above, respectively The combined force F of the substantially vertical orthodontic force F ₂ generated by the bending and the substantially horizontal orthodontic force F ₁ generated by fixing both ends of the orthodontic wire 11 to the first molar is left and right. As a result of acting on the central incisors 1L and 1R, the side incisors 2L and 2R, and the canines 3L and 3R, finally, the root axes of these teeth are radially aligned toward the set point GP. Teeth can be moved in three dimensions. At this time, since jigging is not performed, root resorption can be effectively prevented. In addition, since the bend angle of the torque holding bend portion _BTH is as large as 5 ° or more and 20 ° or less, the thickness of the metal wire used for the orthodontic wire 11 can be small. So that tissue damage can be minimized during correction. Furthermore, the first portion 11a and the seventh portion 11g of the orthodontic wire 11 are fixed to the left and right first molars. The orthodontic wire 11 includes the second premolars, the first molars, By having the tip back bend portion B _TB having a bend angle θ ₁ of 5 ° or more and 20 ° or less at the boundary portion of these, the first molars are tipped to the distal end, so that the first molars are not brewed, Since only the centrifugal cusp is squeezed and bites into the alveolar bone in an oblique manner, an intermediate fixation source can be obtained, and a horizontal correction force can be obtained using this fixation source. Moreover, according to this manufacturing method of the orthodontic wire 11, the above-described excellent orthodontic wire 11 can be manufactured easily and at low cost by bending. Furthermore, according to the pliers 100 for producing orthodontic wires, the metal wire can be easily bent, whereby the above-described excellent orthodontic wires 11 can be produced easily and at low cost. .

  The effect obtained by using the orthodontic wire 11 will be supplemented. That is, in order to enable three-dimensional tooth movement, the orthodontic wire 11 needs to have appropriate rigidity and flexibility. In this regard, the orthodontic wire 11 is a stainless steel wire of a × b = (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) or stainless steel having mechanical properties equivalent thereto. This condition is satisfied because the wire is made of a metal other than steel. In order to move a complex shaped tooth root, the rigidity and flexibility of the orthodontic wire 11 are important factors. By performing orthodontic treatment using the orthodontic wire 11, the force applied to the crown portion is transmitted to the entire root. At this time, neither excessive force nor unnecessary force is applied to the tooth, and the optimum force for the tooth movement (the appropriate corrective force is proportional to the root area) is always generated, and as a result, the bone replacement is performed in the optimum form. . More specifically, the conversion of alveolar bone by osteoclasts and osteoblasts, which is the normal reaction of the histology of the human body, is promoted, which leads to ideal tooth movement, resulting in ideal dentistry. Orthodontic treatment is possible. This orthodontic treatment does not cause pain or root resorption due to treatment.

<2. Second Embodiment>
[Dental treatment set]
The dental treatment set according to the second embodiment includes an orthodontic superelastic wire (hereinafter simply referred to as “superelastic wire”) and a coil spring in addition to the dental treatment wire 11 and the bracket 201 according to the first embodiment. Have. These superelastic wires and coil springs are used when it is necessary to increase the distance between any teeth in the initial stage of orthodontic treatment. 71A and 71B are front views showing these superelastic wires W and coil springs S. FIG.

  As shown in FIG. 71A, the superelastic wire W is an archwire made of a superelastic alloy such as a NiTi alloy or an AuCuZn alloy. The cross-sectional shape of the superelastic wire W is, for example, a circle or a rectangle (rectangle or square). When the cross-sectional shape of the superelastic wire W is circular, the diameter is, for example, not less than 0.3 mm and not more than 0.5 mm, typically 0.4 ± 0.05 mm. When the cross-sectional shape of the superelastic wire W is a quadrangle, the length of two adjacent sides of the quadrangle is, for example, 0.26 mm or more and 0.44 mm or less, and the superelastic wire W is equivalent to the case where the cross-sectional shape is a circle. Selected to have the following mechanical properties: The length of the superelastic wire W is appropriately selected according to the length of the patient's dental arch. A specific example of the superelastic wire W is a NiTi alloy superelastic wire having a circular cross-sectional shape and a diameter of 0.4 mm. The super elastic wire W is attached by being passed through slots of a plurality of brackets attached to the patient's upper teeth or lower teeth.

  The coil spring S shown in FIG. 71B is a coil spring having a spring constant of 50 N / m to 200 N / m, preferably 50 N / m to 150 N / m, and more preferably 100 ± 30 N / m. 72A and 72B are enlarged views of the coil spring S, FIG. 72A is a natural state in which the coil spring S is not compressed (a state in which the length of the coil spring S is equal to the natural length), and FIG. It shows the state compressed to almost the limit. The coil spring S is, for example, a wire made of a stainless steel wire having a circular cross-sectional shape with a diameter of 0.15 mm or more and 0.3 mm or less, or other materials having the same mechanical properties, or these wires. It is formed by spirally winding a material coated with a resin such as polytetrafluoroethylene (PTFE) that is harmless and safe even if used on the surface of the mouth. The coil spring S has a quadrangular (rectangular or square) cross-sectional shape, and is made of a stainless steel wire having other mechanical properties equivalent to the stainless steel wire having the circular cross-sectional shape described above, or other materials. You may form by winding a wire, the wire etc. which performed the coating similar to the above on the surface of these wires spirally. According to the knowledge of the present inventor, the coil spring S enlarges the interdental distance among the superelastic wires W attached through the slots of a plurality of brackets attached to the upper or lower jaw teeth of the patient. The spring constant is maintained substantially the same for a certain period of time, for example, about 1 to 3 weeks after being inserted through the portion between the pair of brackets attached to the pair of teeth to be made and attached in a compressed state. However, it is desirable to have a time constant characteristic of the spring constant so that the elasticity decreases thereafter, the spring constant decreases, and finally the elasticity is hardly exhibited. By doing so, the force acting in the axial direction can be maintained only for a certain period due to the elasticity of the coil spring S, and thereby the teeth can be prevented from rotating excessively. As a typical example of the coil spring S, a diameter obtained by coating polytetrafluoroethylene with a thickness of 0.05 mm on the outer peripheral surface of a stainless steel wire having a circular cross-sectional shape and a diameter of 0.2 mm. It is formed by spirally winding a 0.3 mm wire or another wire having mechanical properties equivalent to this wire. Even when the coil spring S is formed using wires of the same material, the spring constant may vary depending on the magnitude of tension applied when the coil spring S is wound spirally. The inner diameter and outer diameter of the coil spring S are selected as necessary. For example, the inner diameter is 0.6 mm to 1.0 mm, and the outer diameter is 1.2 mm to 1.8 mm. Further, the number of turns per unit length of the coil spring S is selected as necessary as long as the spring constant is in the range of 50 N / m to 200 N / m. The total length of the coil spring S in the uncompressed natural state is such that the total length of the coil spring S in a compressed state (for example, a state compressed to almost the limit) during use increases the interdental distance. It chooses so that it may become a little shorter than the space | interval (distance between the mutually opposing side surfaces of a pair of brackets) between the brackets mounted on the pair of teeth.

  What should be noted here is that the spring constant of a coil spring made of stainless steel or NiTi alloy conventionally used in combination with a stainless steel wire in order to increase the distance between teeth is about 250 N / m to 650 N / m. The spring constant of the coil spring S is 50 N / m or more and 200 N / m or less, which is considerably smaller than m.

[How to use orthodontic set]
As an example, as shown in FIG. 73A, when the right canine 3R is shifted to the mesial side and the right side incisor 2R is shifted to the lingual side in the upper anterior teeth (lingual shift) Next, the case where the canine 3R is moved to the distal side to increase the interdental distance between the central incisor 1R and the canine 3R, and the canine 3R is moved to a normal position will be described. However, here, the central incisor 1R is fixed by some method (for example, the right central incisor 1R and the left central incisor 1L are fixed and fixed), and the like so as not to move. Shall. By moving the canine 3R to a normal position, there is a space between the central incisor 1R and the canine 3R, and the side incisor 2R can be moved to the lip side to be in the normal position.

  First, as shown in FIG. 73A, right and left middle incisors 1L and 1R, right and left side incisors 2L and 2R, right and left canines 3L and 3R, right and left first premolars (FIG. (Not shown) and the right and left first premolars by attaching a bracket B to the front center of the crown of the right and left second premolars (not shown) using a dental adhesive. A bondable tube (not shown) is similarly bonded to the substantially central portion of the front surface of the crown portion. Then, the slots of the brackets B are arranged so that the coil spring S is positioned between the central incisor 1R and the canine 3R that are intended to increase the interdental distance of the superelastic wire W that has been inserted through the coil spring S in advance. The both ends of the superelastic wire W are passed through the bondable tube, and both ends protruding rearward from the bondable tube are bent and fixed to the bondable tube. A module (not shown) is attached to each bracket B in order to prevent the superelastic wire W from being detached from the slot of the bracket B. In this state, the coil spring S is compressed to a natural length, for example, a state close to the limit, so that the coil spring S is attached to the central incisor 1R and the canine 3R by trying to extend. Both ends are in contact with a pair of opposite side surfaces of the pair of brackets B and are pressed toward the mesial side and the distal side, respectively. The force that the coil spring S presses the pair of opposite side surfaces of the pair of brackets B is the difference between the spring constant of the coil spring S and the natural length of the coil spring S and the length of the compressed coil spring S. Is represented by kδ, and decreases as the coil spring S extends, in other words, as δ decreases. Δ immediately after the coil spring S is attached between the central incisor 1R and the canine 3R is selected as necessary, but is generally selected from 1.5 mm to 3.0 mm, for example. Further, in this state, the superelastic wire W is usually not strongly stretched, and therefore the force acting on the bracket B by the superelastic wire W is weak.

  As described above, both ends of the coil spring S inserted by the superelastic wire W press the pair of opposite side surfaces of the pair of brackets B attached to the central incisors 1R and the canines 3R, thereby The axial force of the coil spring S is applied to the side of the bracket B attached to 1R on the mesial side, and the axial side of the coil spring S is applied to the side of the bracket B attached to the canine 3R on the distal side. Forces are applied, and these forces are transmitted to the central incisor 1R and the canine 3R via the bracket B. Thus, when the state in which the force is applied to the central incisor 1R and the canine 3R by the coil spring S continues, the canine 3R gradually moves to the distal side. Thus, as the interdental distance between the central incisor 1R and the canine 3R increases, the coil spring S gradually extends, and the axial force of the coil spring S also decreases accordingly. The coil spring S eventually extends almost completely. At this time, depending on the coil spring S, almost no force is applied to the central incisor 1R and the canine 3R. If the interdental distance between the central incisor 1R and the canine 3R does not reach the target distance, the coil spring S is replaced with a new one, and the force is applied to the central incisor 1R and the canine 3R again, so that the intermediate incisor 1R This is repeated until the distance between the teeth and the canine 3R reaches the target distance. Thus, as shown in FIG. 73B, the interdental distance between the central incisor 1R and the canine 3R is increased to a target distance. Thereafter, the superelastic wire W and the coil spring S are removed.

  As described above, when the interdental distance between the central incisor 1R and the canine 3R is increased and then the panoramic X-ray image is taken to examine the state of the tooth, it is confirmed that the tooth is moving in parallel.

  The use of the orthodontic set comprising the super elastic wire W and the coil spring S enables the parallel movement of the teeth with almost no damage to the tissue, and the interdental distance can be increased. This has been demonstrated by the results of long-term orthodontic treatment. The mechanism that makes it possible to increase the interdental distance by using the super elastic wire W and the coil spring S that is considerably weaker than the conventional one has not been theoretically completely clarified yet. Attempt to theoretically explain the mechanism.

Now, as an example, as in the above case, as shown in FIG. 74A, consider a case where the interdental distance between the upper central right incisor 1R and the right canine 3R is increased. Here, FIG. 74A is a schematic view of these central incisors 1R and canines 3R as viewed from the root portion toward the crown portion (the same applies to FIGS. 74B to E). However, the central incisor 1R and the canine 3R are each shown in a simplified circle. First, interdental distance between central incisors 1R and canines 3R is assumed to be x _0. As described above, the super elastic wire W is attached through the slots SL of the plurality of brackets B attached to the maxillary teeth. At that time, the coil spring S is attached to a portion between the pair of brackets B attached to the central incisor 1R and the canine 3R in the superelastic wire W in a state where the coil spring S is compressed almost to the limit. At this time, in the same manner as described above, the compressed coil spring S tends to extend, so that the pair of side surfaces of the pair of brackets B attached to the central incisor 1R and the canine 3R are opposed to each other on the mesial side and An axial force f of the coil spring S is applied to the centrifugal side. Here, similarly to the above, it is considered that the movement amount of the central incisor 1R can be ignored. Only the force f acting on the bracket B attached to the canine 3R is considered, and only the movement of the canine 3R is considered.

As shown in FIG. 74A, the super elastic wire W passed through the slot SL of the bracket B attached to the canine 3R is separated from the tooth axis TX of the canine 3R by a distance r. For this reason, the force f acting in the axial direction of the coil spring S generates a clockwise moment of magnitude M = f × r around the tooth axis TX of the canine 3R. Here, f = kδ (δ is the difference between the natural length of the coil spring S and the length of the compressed coil spring S). FIG. 75A shows a state where the canine 3R is planted in the alveolar bone AB. Periodontal ligament PM exists between the root of the canine 3R and the alveolar bone AB. G indicates gingiva. FIG. 75B is a cross-sectional view of the canine 3R, periodontal ligament PM, and alveolar bone AB perpendicular to the tooth axis TX. Periodontal ligament PM consists of fibrous connective tissue, is rich in blood vessels and nerves, and contains various cells such as osteoclasts and osteoblasts in addition to fibroblasts. The periodontal ligament PM is a flexible tissue and can be easily deformed when a force is applied. In this case, when the moment M acts, the canine 3R tries to rotate clockwise around the tooth axis TX. At this time, as shown in FIG. 75C, since both surfaces of the periodontal ligament PM are bonded to the canine 3R and the alveolar bone AB, the shearing force SF acts on the periodontal ligament PM, and the entire periodontal ligament PM undergoes shear deformation. It occurs and is squeezed. The shear deformation in the periodontal membrane PM has occurred, P ₁ of the periodontal P ₁ point in mutually opposing positions of both sides of the PM, P ₂ shown in FIG. 75B is moved in a clockwise direction in FIG. 75C It is shown that As the periodontal ligament PM is compressed by the rotation of the canine 3R, in the alveolar bone AB on the periodontal ligament PM side, the generation of osteoclasts and osteoblasts is activated as a whole, and the bone on the surface of the alveolar bone AB is absorbed. At the same time, the bone on the surface of the alveolar bone AB is regenerated. On the other hand, as a result of the force f exerted by the coil spring S, the periodontal ligament PM is almost uniformly compressed in the entire direction of the tooth axis TX in the one half of the distal side of the canine 3R, and conversely the mesial side of the canine 3R. In the almost half on one side, the periodontal ligament PM is similarly pulled substantially uniformly in the entire direction of the tooth axis TX. In this case, the periodontal ligament PM is compressed by the rotation of the canine 3R, and the generation of osteoclasts and osteoblasts is activated throughout the alveolar bone AB on the periodontal ligament PM side. In the alveolar bone AB on the compressed periodontal ligament PM, around one half of the bone, the generation of osteoclasts becomes more active, whereby the bone on the surface of the alveolar bone AB is absorbed and the vicinity of the canine 3R In the alveolar bone AB on the pulled periodontal ligament PM around approximately one half of the heart side, the generation of osteoblasts becomes more active, whereby the bone on the surface of the alveolar bone AB is regenerated. As a result, the canine 3R gradually moves to the centrifugal side while rotating around the tooth axis TX. At this time, bone resorption and regeneration on the surface of the alveolar bone AB are performed substantially uniformly in the entire direction of the tooth axis TX of the canine 3R, and the canine 3R moves in parallel.

As shown in FIG. 74B, as a result of the force f being continuously applied by the coil spring S, the canine 3R rotates clockwise by an angle ω ₁ around the tooth axis TX, and the canine 3R slightly moves to the distal side, The interdental distance between the central incisor 1R and the canine 3R is increased to x ₁ (x ₁ > x ₀ ). At this time, as the canine 3R is rotated by the angle ω ₁ , the bracket B is also rotated by the same angle ω _{1. As} a result, the superelastic wire W passed through the slot SL of the bracket B becomes closer to the mesial side of the bracket B. By being pushed to the lip side at the corner portion between the side surface and the bottom surface of the slot SL, the corner portion is bent toward the lip side. As a result, a tension of a magnitude corresponding to the degree of bending acts on the superelastic wire W. In addition, the super elastic wire W is attached to the bracket B and restrained by the slot of the bracket B, so that the super elastic wire W is placed on the tongue side at the corner between the distal side of the bracket B and the bottom of the slot SL. It can be bent. As a result, a tension of a magnitude corresponding to the degree of bending acts on the superelastic wire W. The reason why the super elastic wire W is bent by the rotation of the bracket B is that the super elastic wire W is extremely flexible. Since the tension generated by bending the superelastic wire W as described above works in a form that antagonizes the force f applied to the side surface of the bracket B by the coil spring S, the canine 3R is not inclined and the teeth Slowly rotate around axis TX.

As shown in FIG. 74C, as a result of the force f being continuously applied by the coil spring S, the canine 3R rotates clockwise around the tooth axis TX by an angle ω ₂ (ω ₂ > ω ₁ ), and the canine 3R. Further moves to the distal side, and the interdental distance between the central incisor 1R and the canine 3R increases to x ₂ (x ₂ > x ₁ ). Along with the canine 3R is angle omega ₂ rotates, superelastic wire W is pushed by the labial side corner between mesial side and a bottom surface of the slot SL of the bracket B, the distal side of the bracket B By being pushed by the lingual side at the corners of the side surface and the bottom surface of the slot SL, these corners are bent greatly on the lip side and the lingual side. As a result, a greater tension acts on the superelastic wire W.

When the canine tooth 3R is rotated by an angle ω ₂ , the coil spring S is fully extended and is almost a natural length. As a result, the force f exerted by the coil spring S becomes almost zero, and there is no longer any force for rotating the canine 3R clockwise around the tooth axis TX. At this time, the tension acting on the superelastic wire W causes a force to restore the initial position before the superelastic wire W is bent, and this force causes the canine 3R to rotate counterclockwise around the tooth axis TX. Rotate to Then, as shown in FIG. 74D, the canine 3R rotates counterclockwise to the angle ω ₁ . After a lapse of time, as shown in FIG. 74E, the canine 3R further rotates counterclockwise and finally rotates to the initial state shown in FIG. 74A. At this time, the bending of the superelastic wire W is almost the same. Eliminate. In this case, even in the process in which the canine 3R rotates counterclockwise around the tooth axis TX, generation of osteoclasts and osteoblasts occurs in the entire alveolar bone AB on the periodontal ligament PM side by pressing the periodontal ligament PM. Is activated, bone on the surface of the alveolar bone AB is absorbed, and bone on the surface of the alveolar bone AB is regenerated. When the coil spring S is fully extended at the time shown in FIG. 74C, the interdental distance between the central incisor 1R and the canine 3R hardly changes in the process in which the canine 3R rotates counterclockwise. Therefore, in this case, interdental distance x ₄ between the central incisor 1R and canine 3R in the state shown in interdental distance x ₃ and Figure 74E with the central incisors 1R and canine 3R in the state shown in FIG. 74D is a diagram 74C It is almost the same as the interdental distance x ₂ between the central incisor 1R and the canine 3R. On the other hand, when the coil spring S is not yet fully extended at the time shown in FIG. 74C and there is a margin for extension, the canine 3R is somewhat rotated in the process of rotating counterclockwise. The interdental distance between the central incisor 1R and the canine 3R slightly increases. Therefore, in this case, interdental distance x ₄ between the central incisor 1R and canine 3R in the state shown in interdental distance x ₃ and Figure 74E with the central incisors 1R and canine 3R in the state shown in FIG. 74D is a diagram 74C It is slightly greater than the interdental distance x ₂ between the central incisors 1R and canine 3R in the state shown in.

  When the coil spring S has been extended due to use for a certain period, the coil spring S is replaced with a new one, and the interdental distance between the central incisor 1R and the canine 3R is continuously increased. The treatment is continued until the interdental distance between the central incisor 1R and the canine 3R reaches the target distance.

[Case]
A case of four patients who have performed orthodontic treatment using the superelastic wire W and the coil spring S to actually increase the interdental distance will be described.

  FIG. 76A is a photograph of a NiTi alloy superelastic wire used as the superelastic wire W. FIG. This NiTi alloy superelastic wire has a circular cross-sectional shape and a diameter of 0.4 mm. FIG. 76B is a photograph of a coil spring made of ligature wire (ligature wire) used as the coil spring S. The used ligation wire is a wire having a diameter of 0.3 mm, in which the outer peripheral surface of a stainless steel wire having a circular cross-sectional shape and having a diameter of 0.2 mm is coated with PTFE with a thickness of 0.05 mm. FIG. 76C shows this ligation wire. A coil spring is formed by winding this ligature wire around a straight stainless steel wire having a circular cross-sectional shape with a diameter of 0.9 mm in a spiral shape at a relatively large pitch. Apply force to compress to a certain length. Thereafter, the stainless steel wire was pulled out. The ligated wire coil spring had an outer diameter of about 1.5 mm and an inner diameter of about 0.9 mm. When the spring constant of the coil spring made of ligature wire was measured, it was about 98 N / m (about 10 gw / mm). This spring constant is extremely small, about 1/6, compared with the spring constant (about 600 N / m) of a conventional stainless steel coil spring used in combination with a stainless steel wire. In this case, in this coil spring, if δ = 2 mm, f = kδ = 10 gw / mm × 2 mm = 20 gw, which is an extremely small force. In conventional common sense, it has been thought that a coil spring that is extremely weak and can generate only a small force cannot move the teeth to increase the interdental distance.

Patient 11
77A to 77C are photographs obtained by photographing the upper and lower jaw teeth at the first visit of the patient 11 before orthodontic treatment from the front, the right side, and the left side. As shown in FIGS. 77A to C, in this state, in the maxillary anterior teeth, the right canine is shifted to the mesial side on the lower lip side, and the interdental distance from the central incisor is small. Recedes to the lingual side (lingual translocation). In the lower anterior teeth, the distance between the right central incisor and the left central incisor is small, the distance between the right central incisor and the right canine is small, and the right side incisor is the tongue. Retracted to the side (translation of the lingual side).

  78A to 78C show a state in which the NiTi alloy superelastic wire shown in FIG. 76A is attached to the maxillary and mandibular teeth using a bracket. However, FIGS. 78A to C are photographs of upper and lower jaw teeth taken from the front, right side and left side. In the maxillary anterior teeth, a coil spring made of ligating wire shown in FIG. 76B is inserted into this portion between the right central incisor and the right canine of the NiTi alloy superelastic wire attached to the bracket, And it attached in the compressed state. Similarly, in the lower anterior teeth of the NiTi alloy superelastic wire attached to the bracket, the portion between the right central incisor and the right canine and the right central incisor and the left side incisor. A coil spring made of a ligating wire was inserted through the portion between the two and attached in a compressed state. The NiTi alloy superelastic wire is used for leveling and alignment of upper and lower teeth, correction of the dental arch form, and some correction (approximately 80%) of the torsion teeth, as in the past.

  FIGS. 79A to 79C show the upper and lower jaw teeth of the patient 11 from the front, right side, and about one year and five months after the NiTi alloy superelastic wire and ligation wire coil spring are attached to the upper and lower teeth. It is a photograph taken from the left side. As shown in FIGS. 79A to 79C, in this state, in the upper anterior teeth, the right canine is obviously moved to the distal side, and the interdental distance between the right central incisor and the right canine is increased. As the target distance is reached, the coil spring made of ligature wire has been removed. By increasing the interdental distance between the right middle incisor and the right canine, the right side incisor could be moved to the labial side. Further, in the lower anterior teeth, the interdental distance is still insufficiently expanded, and it is necessary to continuously increase the interdental distance by combining a NiTi alloy superelastic wire and a ligature wire coil spring.

  FIG. 80 shows a panoramic X-ray of the patient 11 taken before the start of orthodontic treatment. 81 shows panoramic X-ray photographs of the patient 11 taken after the initial treatment has progressed to the states shown in FIGS. As is clear from comparing FIG. 81 with FIG. 80, the right canine is moving in parallel compared to before the start of treatment, and the interdental distance between the right central incisor and the right canine is increased. Yes.

Patient 12
82A to 82C are photographs obtained by photographing the upper and lower jaw teeth at the first visit of the patient 12 before orthodontic treatment from the front, right side, and left side. As shown in FIGS. 82A to 82C, in this state, in the upper anterior teeth, the right canine is shifted to the mesial side on the lower lip side, and the interdental distance with the right central incisor is small, and The side incisors of the left side are retracted to the lingual side (lingual side shift), and the left canine is shifted to the mesial side on the lower lip side, and the interdental distance from the left central incisor is small, The left side incisor is retracted to the lingual side (lingual translocation).

  83A to C show a state in which the NiTi alloy super elastic wire shown in FIG. 76A is attached to the maxillary tooth using a bracket. 83A to 83C are photographs of upper and lower jaw teeth taken from the front, right side, and left side. In the maxillary anterior teeth, among the NiTi alloy super elastic wires attached to the bracket, the portion between the right central incisor and the right canine and the portion between the left central incisor and the left canine respectively A coil spring made of ligating wire was inserted through this portion and attached in a compressed state.

  FIGS. 84A to 84C are photographs of upper and lower jaw teeth of patient 12 taken from the front, the right side, and the left side after about 10 months and 3 weeks have passed since the NiTi alloy superelastic wire and ligation wire coil spring were attached to the upper jaw teeth. It is. As shown in FIGS. 84A to 84C, in this state, in the upper anterior teeth, the right canine is clearly moved to the distal side, and the interdental distance between the right central incisor and the right canine is increased. At the same time, the left canine moves to the distal side, and the interdental distance between the left central incisor and the left canine increases.

  FIG. 85 shows a panoramic X-ray of the patient 12 taken before the start of orthodontic treatment. FIG. 86 shows panoramic X-rays of the patient 12 taken after the initial treatment has progressed to the states shown in FIGS. As is clear from comparison of FIG. 86 with FIG. 85, the right canine and left canine have moved in parallel as compared to before the start of treatment, and the interdental distance between the right central incisor and right canine and the left The interdental distance between the central incisor and the left canine is increasing.

Patient 13
87A to 87C are photographs obtained by photographing the upper and lower jaw teeth at the first visit of the patient 13 before orthodontic treatment from the front, right side, and left side. As shown in FIGS. 87A to 87C, in this state, in the upper anterior teeth, the right canine is shifted to the mesial side on the lower lip side, and the interdental distance with the right central incisor is small, and Side incisors are retracted to the lingual side (lingual translocation).

  88A to 88C show a state where the NiTi alloy super elastic wire shown in FIG. 76A is attached to the maxillary tooth using a bracket. However, FIG. 88A-C is the photograph which image | photographed the upper and lower jaw teeth from the front, the right side, and the left side. In the maxillary anterior teeth, the coil spring made of ligation wire was inserted into the portion between the right central incisor and the right canine of the NiTi alloy superelastic wire attached to the bracket and compressed. Installed in the state.

  89A to 89C are photographs obtained by photographing the upper and lower jaw teeth of the patient 13 from the front, the right side, and the left side after about 11 months have passed since the NiTi alloy super elastic wire and the ligation wire coil spring were attached to the maxillary teeth. As shown in FIGS. 89A to 89C, in this state, in the upper anterior teeth, the right canine is clearly moved to the distal side, and the interdental distance between the right central incisor and the right canine is increased. .

  FIG. 90 shows a panoramic radiograph of patient 13 taken before the start of orthodontic treatment. FIG. 91 shows panoramic radiographs of the patient 13 taken after the initial treatment has progressed to the states shown in FIGS. As can be seen from a comparison of FIG. 91 with FIG. 90, the right canine is moving in parallel compared to before the start of treatment, and the interdental distance between the right central incisor and the right canine is increased. Yes.

Patient 14
FIGS. 92A to 92C are photographs obtained by photographing the upper and lower jaw teeth at the first visit of the patient 14 before orthodontic treatment from the front, right side, and left side. As shown in FIGS. 92A to C, in this state, in the upper anterior teeth, the right canine is shifted to the mesial side on the lower lip side, and the interdental distance with the right central incisor is small, The side incisors of the left side are retracted to the lingual side (lingual side shift), and the left canine is shifted to the mesial side on the lower lip side, and the interdental distance from the left central incisor is small, The left side incisor is retracted to the lingual side (lingual translocation).

  FIGS. 93A to 93C show a state in which the NiTi alloy superelastic wire shown in FIG. 76A is attached to the maxillary and mandibular teeth using a bracket. However, FIGS. 93A to 93C are photographs of upper and lower jaw teeth taken from the front, right side and left side. In the maxillary anterior teeth, among the NiTi alloy super elastic wires attached to the bracket, the portion between the right central incisor and the right canine and the portion between the left central incisor and the left canine respectively A coil spring made of ligating wire was inserted through this portion and attached in a compressed state.

  FIGS. 94A to 94C are photographs of upper and lower jaw teeth of the patient 14 taken from the front, right side, and left side after about 7 months and 2 weeks have passed since the NiTi alloy super elastic wire and ligation wire coil spring were attached to the upper jaw tooth. It is. As shown in FIGS. 94A to 94C, in this state, in the upper anterior teeth, the right canine is clearly moved to the distal side, and the interdental distance between the right central incisor and the right canine is increased. At the same time, the left canine moves to the distal side, and the interdental distance between the left central incisor and the left canine increases.

  FIG. 95 shows a panoramic X-ray of the patient 14 taken before the start of orthodontic treatment. FIG. 96 shows panoramic radiographs of the patient 14 taken after the initial treatment has progressed to the states shown in FIGS. As is clear from comparison of FIG. 96 with FIG. 95, the right canine and the left canine have moved in parallel compared to before the start of treatment, and the interdental distance between the right central incisor and the right canine and the left The interdental distance between the central incisor and the left canine is increasing.

  By using the super elastic wire W and the coil spring S, the torsion teeth can be rotated to a normal position and corrected. The method will be described.

  As an example, as shown in FIG. 97A, when the right central incisor 1R and the left central incisor 1L are twisted in directions opposite to each other in the maxillary anterior teeth, the central incisors 1R and 1L Let us consider a case where the torsion is corrected by rotating the rotation around the tooth axis TX.

  First, as shown in FIG. 97A, the super elastic wires W are passed through the slots SL of the brackets B attached to the central incisors 1R and 1L, respectively. At this time, these brackets of the super elastic wires W are inserted. A coil spring S is inserted between the super elastic wires W and compressed in a portion between B. In this state, both ends of the coil spring S inserted by the superelastic wire W press the pair of opposite side surfaces of the pair of brackets B attached to the center incisors 1R and 1L. The axial force of the coil spring S is applied to the side of the bracket B attached to the tooth 1R on the centrifugal side, and the coil spring S is also applied to the side of the bracket B attached to the central incisor 1L. Axial forces are applied, and these forces are transmitted to the central incisors 1R and 1L via the bracket B. When the state in which force is applied to the central incisors 1R and 1L by the coil spring S in this way continues, as shown in FIG. 97B, the central incisors 1R gradually rotate around the tooth axis in the clockwise direction, Conversely, the central incisor 1L gradually rotates counterclockwise around its tooth axis. As the periodontal ligament PM is compressed by the rotation of the central incisor 1R and the central incisor 1L, in the alveolar bone AB on the periodontal ligament PM side, generation of osteoclasts and osteoblasts is activated as a whole, and the alveoli The bone on the surface of the bone AB is absorbed and the bone on the surface of the alveolar bone AB is regenerated. If the torsion of the central incisor 1R and the central incisor 1L can be corrected before the coil spring S is fully extended, the treatment for correcting the torsion ends. If the torsion of the central incisor 1R and the central incisor 1L cannot be corrected before the coil spring S is fully extended, the coil spring S is replaced with a new one and force is applied to the central incisor 1R and the central incisor 1L again. Add. Thus, as shown in FIG. 97C, the torsion of the central incisors 1R and 1L is corrected. Thereafter, the superelastic wire W and the coil spring S are removed.

  As described above, the torsional tooth can be rotated to the normal position and corrected without causing the tooth inclination.

  As described above, according to the second embodiment, in addition to the same advantages as those of the first embodiment, by using the superelastic wire W and the coil spring S in combination in the initial stage of orthodontic treatment. Finally, you can get the advantage that the inter-tooth distance can be expanded without causing tooth rotation and inclination, or you can rotate the torsional teeth to normal position without causing tooth inclination You can get the advantage that you can.

<3. Third Embodiment>
In the third embodiment, a case where the dental treatment wire according to the first embodiment is used for the treatment of periodontal disease will be described.

  The method of using the dental treatment wire 11 in the treatment of periodontal disease is basically the same as the method of using the dental treatment wire 11 in the orthodontic treatment.

[Case]
The case where the patient's periodontal disease was treated using the dental treatment wire 11 will be described.

Patient 21
98A to C are photographs of the upper and lower jaw teeth taken at the first visit of the patient 21 before the treatment of periodontal disease from the front, right side, and left side, and FIG. 99 is a panoramic X-ray photograph of the patient 21 taken at the first visit. Show. As shown in FIGS. 98A-C and 99, patient 21 suffers from moderate or severe periodontal disease across all teeth of the upper and lower jaws, in addition, not aligned with the upper and lower jaw teeth, There is a space between the teeth. In this state, there is usually a high possibility that teeth will fall out in a short period of time.

  FIGS. 100A to 100C show a state in which the NiTi orthodontic superelastic wire is attached to the maxillary and mandibular teeth before the use of the dental treatment wire 11 is started. However, FIGS. 100A to 100C are photographs of upper and lower jaw teeth taken from the front, right side, and left side.

  101A to 101C are photographs obtained by photographing the upper and lower jaw teeth of the patient 21 from the front, the right side, and the left side after about two months and three weeks have passed since the orthoelastic superelastic wire was attached to the upper and lower teeth. As shown in FIGS. 101A to 101C, in this state, the leveling and alignment of the lower jaw teeth are almost completed, and the use of the dental treatment wire 11 can be started. Therefore, as shown in FIGS. 101A to 101C, with the orthodontic superelastic wire attached to the upper jaw, as described above, the dental treatment wire 11 is attached to the lower jaw, and the power chain is Attached.

  102A to 102C are photographs obtained by photographing the upper and lower jaw teeth of the patient 21 from the front side, the right side, and the left side after about 5 months and one week have passed since the orthoelastic superelastic wire was attached to the upper and lower jaw teeth. .

  FIG. 103 shows panoramic radiographs of the patient 21 taken after about two months and three weeks after the dental treatment wire 11 was attached to the lower jaw teeth. As is clear by comparing FIG. 103 with FIG. 99, bone resorption is suppressed and bone regeneration is performed compared to before the start of treatment, and there is a tendency to improve alveolar bone In addition, the lower jaw teeth are well aligned.

  104A to 104C are photographs obtained by photographing the upper and lower jaw teeth of the patient 21 from the front side, the right side, and the left side after about 4 months and 2 weeks after the dental treatment wire 11 is attached to the lower jaw teeth.

  105A to 105C are photographs obtained by photographing the upper and lower jaw teeth of the patient 21 from the front side, the right side, and the left side after about one month from the attachment of the dental treatment wire 11 to the lower jaw teeth.

  106A to 106C are photographs obtained by photographing the upper and lower jaw teeth of the patient 21 from the front, right side, and left side after about two months have passed since the dental treatment wire 11 was attached to the lower jaw teeth.

  107A to 107C are photographs obtained by photographing the upper and lower jaw teeth of the patient 21 from the front side, the right side, and the left side after about two months and three weeks after the dental treatment wire 11 is attached to the lower jaw teeth. At this point, the treatment of periodontal disease of the mandibular teeth is almost finished, so the dental treatment wire 11 is removed from the mandibular teeth and the orthodontic superelastic wire is attached again, and the leveling and alignment of the maxillary teeth are almost completed. Since the dental treatment wire 11 can be used, the orthodontic superelastic wire is removed from the maxillary teeth, the dental treatment wire 11 is attached instead, and the power chain is also attached.

  108A to 108C are photographs obtained by photographing the upper and lower jaw teeth of the patient 21 from the front side, the right side, and the left side after about four months and one week have passed since the dental treatment wire 11 was attached to the upper jaw teeth. However, in this state, the dental treatment wire 11 is removed from the maxillary teeth, and an orthodontic superelastic wire is attached instead.

  109A to 109C are photographs obtained by photographing the upper and lower jaw teeth of the patient 21 from the front, the right side, and the left side after about one month from the removal of the dental treatment wire 11 from the upper teeth. At this point, the orthoelastic superelastic wire was removed from the maxillary tooth, and the dental treatment wire 11 was attached again instead.

  110A to 110C are photographs obtained by photographing the upper and lower jaw teeth of the patient 21 from the front, the right side, and the left side after about 9 months have passed since the dental treatment wire 11 was attached again to the upper jaw teeth. However, in this state, the dental treatment wire 11 is removed from the maxillary teeth, and an orthodontic superelastic wire is attached instead.

  FIGS. 111A to C show that the dental treatment wire 11 is removed from the maxillary teeth and the orthodontic superelastic wire is attached instead, and about 1 month and 3 weeks later (after about 4 years from the first visit), the upper and lower jaw teeth It is the photograph which image | photographed the upper and lower jaw teeth of the patient 21 after removing the orthoelastic wire for orthodontics from the front, the right side, and the left side. FIG. 112 shows a panoramic radiograph of the patient 21 taken in this state. As shown in FIGS. 111A to 111C and FIG. 112, the patient 21 has stopped the progress of periodontal disease of the upper and lower jaw teeth even after about 4 years, and in addition, is well aligned with the upper and lower jaw teeth, It can be seen that the space between the teeth is also closed. In this way, even if the tooth has moderate or severe periodontal disease and is unstable, it will not fall out even after a long period of time, and the progression of periodontal disease is stopped. The use of the wire 11 is considered to be due to the effect of stabilizing the occlusion.

  Thus, the treatment of periodontal disease of the patient 21 using the dental treatment wire 11 is completed. When the subsequent course was observed, it was confirmed that the teeth did not fall out even after about 9 years from the first visit, and the progress of periodontal disease was stopped.

  As described above, according to the third embodiment, periodontal disease can be treated very easily by using the dental treatment wire 11.

  Although the embodiment of the present invention has been specifically described above, the present invention is not limited to the above-described embodiment, and various modifications based on the technical idea of the present invention are possible.

  For example, the numerical values, structures, shapes, materials, manufacturing methods and the like given in the above-described embodiments are merely examples, and different numerical values, structures, shapes, materials, manufacturing methods, etc. are used as necessary. Also good.

  In the case where orthodontic treatment is actually performed in the second embodiment described above, as a power chain, “Pro-Chain (Elastomeric Chain for Orthodontics) Part No. 504-0036 Light Force M manufactured by Dentsu Supply Sankin Co., Ltd.” "Space" may be used. In addition, when performing orthodontic treatment by extracting the second premolar instead of the first premolar on the left and right sides of the upper and lower jaw teeth, as a power chain, for example, “Dentsu Supply Sankin Co., Ltd.” Pro chain (orthodontic elastometric chain) product number 505-0030 medium force s space "or" Pro chain (orthodontic elastometric chain) product number 506-0030 heavy force s space "can be used.

  11 ... orthodontic wire, 11a ... first part, 11b ... second part, 11c ... third part, 11d ... fourth part, 11e ... fifth part, 11f ... sixth part, 11g ... seventh part, 20 ... Metal wire, 100 ... pliers for manufacturing orthodontic wire, 101 ... first arm, 102 ... second arm, 103 ... connecting shaft, 104, 107 ... jaw part, 110, 111 ... clamping part, 112 ... convex part, 113 Recess, 201 ... Bracket, 201a ... Slot, 201b, 201c ... Wing, W ... Super elastic wire, S ... Coil spring, B ... Bracket, SL ... Slot

Claims (11)

From the one end to the other end, the first part is almost straight, the second part is almost straight, the third part is almost straight, the fourth part is arched in the center, the fifth part is almost straight, and the part is almost straight A generally arcuate stainless steel having a rectangular cross-sectional shape of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) A cross-sectional shape similar to the cross-sectional shape of the steel wire or this stainless steel wire with a similar ratio 1: p (where 0.9 ≦ p ≦ 1.1), and a machine equivalent to this stainless steel wire Consisting of a wire made of a material other than stainless steel with specific properties,
The first portion and the seventh portion are located substantially in the first plane;
The second part and the sixth part are located substantially in the second plane;
The third part and the fifth part are located substantially in the third plane;
The fourth part is located substantially in the fourth plane;
The long side of the rectangular cross section of the wire made of a material other than the stainless steel wire or the stainless steel is substantially parallel to the first plane, the second plane, the third plane, and the fourth plane,
The second plane is inclined by 5 ° or more and 20 ° or less with respect to the first plane,
The third plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the second plane,
The fourth plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the third plane,
The first part and the seventh part have a length that can be stretched over the first molar on the left or right side of the patient's upper or lower jaw,
The second part and the sixth part have a length that can be stretched over the second premolar on the left or right side of the patient's upper or lower jaw,
The third part and the fifth part have a length that can be stretched over the first premolar on the left or right side of the patient's upper or lower jaw,
4. The dental treatment wire according to claim 4, wherein the fourth portion has a length that can be stretched over the entire upper teeth of the patient's upper jaw or lower jaw.   When performing orthodontic treatment of the patient's maxillary teeth, without extracting any of the teeth, the first part, the third part, the fifth part and the sixth part with respect to the first part, With the fourth part and the seventh part facing up, the first part, the second part, the third part, the fourth part, the fifth part, the sixth part and the seventh part are substantially in the same plane. The first portion is mounted on the front surface of the left first molar tooth with the dental treatment wire bent, and the second portion is the left second premolar tooth. Attached to the front of the crown, the third part is attached to the front of the left first premolar crown, and the fourth part is the left and right central incisors, side incisors and canines Is attached to the front surface of the crown part of the right first premolar, and the fifth part is Six parts are attached to the front of the right second premolar crown, and the seventh part is attached to the front of the right first premolar crown for orthodontic treatment of the patient's lower teeth In this case, without extracting any of the teeth, the first part, the fourth part, and the seventh part are lowered with respect to the second part, the third part, the fifth part, and the sixth part. The dental treatment wire so that the first part, the second part, the third part, the fourth part, the fifth part, the sixth part and the seventh part are included in substantially the same plane. In the curved state, the first part is attached to the front surface of the right first molar crown, the second part is attached to the front surface of the right second premolar tooth, Three parts are attached to the front of the crown of the right first premolar, and the fourth part is The fifth part is attached to the front surface of the left first premolar tooth and the sixth part is attached to the left second premolar tooth. The dental treatment wire according to claim 1, wherein the dental treatment wire is attached to a front surface of a crown portion, and the seventh portion is attached to a front surface of a crown portion of a left first molar.   The second plane is inclined by 5 ° or more and 15 ° or less with respect to the first plane, the third plane is inclined with respect to the second plane by 5 ° or more and 15 ° or less on the same side as the first plane, 3. The dental treatment wire according to claim 1, wherein the fourth plane is inclined at 5 ° or more and 15 ° or less on the same side as the first plane with respect to the third plane.   The dental treatment wire consists of a stainless steel wire having a rectangular cross-sectional shape of (0.41 ± 0.02 mm) × (0.56 ± 0.02 mm) or a wire made of a material other than the stainless steel, The second plane is inclined by 7 ° or more and 13 ° or less with respect to the first plane, the third plane is inclined with respect to the second plane by 7 ° or more and 13 ° or less on the same side as the first plane, The dental treatment according to any one of claims 1 to 3, wherein the fourth plane is inclined by 7 ° or more and 13 ° or less on the same side as the first plane with respect to the third plane. wire.   5. The dental treatment wire is manufactured by bending six stainless steel wires or a wire made of a material other than stainless steel. The dental treatment wire according to claim 1.   The dental treatment wire bisects the fourth portion and is substantially symmetric with respect to a plane perpendicular to the first plane, the second plane, the third plane, and the fourth plane. The dental treatment wire according to any one of claims 1 to 5.   When the dental treatment wire is attached to the bracket attached to the front of the crown of the patient's maxillary or mandibular anterior teeth, one longitudinal edge of the dental treatment wire makes point contact with the bottom surface of the bracket slot. 7. The dental treatment wire according to any one of claims 1 to 6, wherein the ridges on both sides sandwiching the ridge are in point contact or line contact with both side surfaces of the bracket slot, respectively. . A dental treatment set comprising a dental treatment wire and a bracket for attaching the dental treatment wire,
The dental treatment wire is
From the one end to the other end, the first part is almost straight, the second part is almost straight, the third part is almost straight, the fourth part is arched in the center, the fifth part is almost straight, and the part is almost straight A generally arcuate stainless steel having a rectangular cross-sectional shape of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) A cross-sectional shape similar to the cross-sectional shape of the steel wire or this stainless steel wire with a similar ratio 1: p (where 0.9 ≦ p ≦ 1.1), and a machine equivalent to this stainless steel wire Consisting of a wire made of a material other than stainless steel with specific properties,
The first portion and the seventh portion are located substantially in the first plane;
The second part and the sixth part are located substantially in the second plane;
The third part and the fifth part are located substantially in the third plane;
The fourth part is located substantially in the fourth plane;
The long side of the rectangular cross section of the wire made of a material other than the stainless steel wire or the stainless steel is substantially parallel to the first plane, the second plane, the third plane, and the fourth plane,
The second plane is inclined by 5 ° or more and 20 ° or less with respect to the first plane,
The third plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the second plane,
The fourth plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the third plane,
The first part and the seventh part have a length that can be stretched over the first molar on the left or right side of the patient's upper or lower jaw,
The second part and the sixth part have a length that can be stretched over the second premolar on the left or right side of the patient's upper or lower jaw,
The third part and the fifth part have a length that can be stretched over the first premolar on the left or right side of the patient's upper or lower jaw,
The fourth part has a length that can be stretched over the entire front teeth of the patient's upper or lower jaw,
The bracket is
A dental treatment set comprising a slot having a rectangular cross-sectional shape having a width of 0.56 ± 0.05 mm or a slot having a rectangular cross-sectional shape having a width of (0.56 ± 0.05 mm) × p . The dental treatment wire consists of a stainless steel wire having a rectangular cross-sectional shape of (0.41 ± 0.02 mm) × (0.56 ± 0.02 mm) or a wire made of a material other than the stainless steel,
The second plane is inclined by 7 ° or more and 13 ° or less with respect to the first plane,
The third plane is inclined by 7 ° or more and 13 ° or less on the same side as the first plane with respect to the second plane,
The fourth plane is inclined by 7 ° or more and 13 ° or less on the same side as the first plane with respect to the third plane,
9. The dental treatment set according to claim 8, wherein the bracket has a slot having a rectangular cross section with a width of 0.56 ± 0.02 mm or (0.56 ± 0.02 mm) × p. An orthodontic superelastic wire attached to a plurality of brackets attached to the patient's maxillary or mandibular teeth;
The orthodontic superelastic wire attached to the plurality of brackets attached to the maxillary teeth or the mandibular teeth is inserted into a portion between the pair of brackets attached to the pair of teeth. The dental treatment set according to claim 8 or 9, further comprising a coil spring having a spring constant of 50 N / m or more and 200 N / m or less, which is attached in a compressed state. By bending six locations of a single stainless steel wire or a wire made of a material other than stainless steel,
From the one end to the other end, the first part is almost straight, the second part is almost straight, the third part is almost straight, the fourth part is arched in the center, the fifth part is almost straight, and the part is almost straight A generally arcuate stainless steel having a rectangular cross-sectional shape of (0.41 ± 0.05 mm) × (0.56 ± 0.05 mm) A cross-sectional shape similar to the cross-sectional shape of the steel wire or this stainless steel wire with a similar ratio 1: p (where 0.9 ≦ p ≦ 1.1), and a machine equivalent to this stainless steel wire Consisting of a wire made of a material other than stainless steel with specific properties,
The first portion and the seventh portion are located substantially in the first plane;
The second part and the sixth part are located substantially in the second plane;
The third part and the fifth part are located substantially in the third plane;
The fourth part is located substantially in the fourth plane;
The long side of the rectangular cross section of the wire made of a material other than the stainless steel wire or the stainless steel is substantially parallel to the first plane, the second plane, the third plane, and the fourth plane,
The second plane is inclined by 5 ° or more and 20 ° or less with respect to the first plane,
The third plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the second plane,
The fourth plane is inclined by 5 ° or more and 20 ° or less on the same side as the first plane with respect to the third plane,
The first part and the seventh part have a length that can be stretched over the first molar on the left or right side of the patient's upper or lower jaw,
The second part and the sixth part have a length that can be stretched over the second premolar on the left or right side of the patient's upper or lower jaw,
The third part and the fifth part have a length that can be stretched over the first premolar on the left or right side of the patient's upper or lower jaw,
A method for producing a dental treatment wire, characterized in that the fourth portion is produced with a length that can be stretched over almost the entire anterior teeth of a patient's upper jaw or lower jaw.