JP6424368B1 - Dental brace - Google Patents

Abstract

[Problem] To provide a dental brace that achieves both excellent aesthetics and high correction power and stability.
SOLUTION: A dental appliance 1 is made of a substantially transparent or translucent material having elasticity, and formed in a substantially U shape in a plan view covering a part or all of a dentition of a human body to be worn. The device main body 2 is provided. A metal wire 3 is embedded in the orthosis main body 2, and the metal wire 3 urges an elastic force in a direction of correcting the dentition. The metal wire 3 is preferably a bracket wire.
[Selected figure] FIG.

Description

  The present invention relates to a dental appliance for correcting a dentition, or for mounting on a dentition for a predetermined period of time so that the corrected dentition is not restored.

  In modern society, teeth and people suffering are increasing. Heretofore, various techniques have been proposed for correcting the alignment of the dentition or as a device to be attached to the dentition so that the corrected dentition is not restored.

  For example, in the technique described in Patent Document 1, a metal wire is fixed to a resin which is a block of a resin material, and the dentition can be fixed by the elastic force of the wire.

  However, in the technique described in Patent Document 1, the wire itself tends to be thick in order to fix the dentition with the wire. Therefore, from the wearer of the dentition brace, when you close the mouth during conversation, when closing the mouth when resting, or when you close the mouth to bite and bite, etc., the whole wire bites, and in the preferred feel There is a request that there is no. In addition, since the wire is wound around and fixed to the entire dentition, another person can visually recognize the wire when opening the equal mouth in conversation, causing a psychological burden on the wearer of the dental brace, and the esthetics There is also a demand for lack of

  As what solves the problem of the dentition appliance which uses a wire like the above-mentioned patent documents 1, what is called a mouthpiece type dentition appliance which is shown by patent documents 2 is proposed.

  According to the technique of Patent Document 2, a part or all of the dentition is covered with a cover formed of a transparent resin, and the dentition is fixed by the elastic force of the resin. By using a transparent resin cover, it is possible to cover the drawbacks of the wire device that the appearance is not good.

Japanese Patent Application Publication No. 2004-000719 JP, 2009-050723, A

  However, in order to fix the dentition with the resin cover that covers the dentition, when engaging in conversation, resting, etc., the cover will bite together. Therefore, there is room for further improvement in the feel improvement at the time of wearing like the equipment made of wire. In addition, since the dentition is fixed only by the resin cover, the force applied to the dentition is weak, and the displacement may occur during wearing. Therefore, there is room for improvement in terms of improvement in stability.

  In view of these problems, the present invention aims to provide a dental brace that has both excellent aesthetics and high correction power and stability. In the present invention, the meaning represented by the term "correcting force" includes not only the force for actually moving the dentition but also the force for preventing the corrected dentition from returning.

  The present inventors fix the dentition with a transparent or semi-transparent appliance body covering a part or all of the dentition, embed a wire in the appliance body and use elastic force in the direction to correct the dentition with the wire. The inventors found that, by urging, they can meet the contradictory requirements of aesthetics and high correction power and stability, and have completed the present invention. Specifically, the present invention provides the following.

  The dental appliance according to the present invention is an appliance made of a substantially transparent or translucent material having elasticity and formed in a substantially U shape in a plan view covering part or all of the dentition of the human body to be worn. A metal wire is embedded in the main body of the appliance, and the wire biases an elastic force in a direction of correcting the dentition.

  According to this dentition brace, the dentition is fixed by the transparent or translucent brace main body covering a part or all of the dentition, and the elastic force is biased in the direction to correct the dentition by the wire. The correction power of the main body can be reinforced. In addition, since the wire is embedded in the main body of the device, the wire is not visually recognized by others, and the aesthetics is excellent.

  Moreover, in the above-mentioned dentition brace, it is preferable that the wire is a wire for a bracket.

  According to this dental brace, a wire for the bracket is used which is thinner than the wire used with the resin. Therefore, it is hard to produce biting of a wire in the case of occlusion, it is excellent in usability, and it can prevent that a wire is visually recognized from others.

  Further, in the dental brace as described above, the brace body has a lip side covering the lip side of the dentition and a tongue side covering the tongue side of the dentition, and the wire is the orthodontic body It is preferable to have a tongue side portion passing through the tongue side, a connecting portion connecting between the tongue side and the lip side, and a lip side passing through the lip side.

  According to this dental brace, the wire connects between the lingual side passing through the lingual side of the main body of the brace, the labial side passing through the labial side of the main body of the brace, and the labial side and the lingual side By having the connection portion, it is possible to maintain the strength while reliably reinforcing the correction force of the device body.

  Further, in the dental appliance, it is preferable that the labial portion of the wire is not disposed at a portion corresponding to the central incisor, the lateral incisor and the canine.

  According to this dental brace, since the wire is not arranged at the lip side of the part corresponding to the central incisors, the lateral incisors and the canine teeth which are easily viewed by others when the mouth is opened, etc. When the wearer opens the mouth, the psychological burden on the wearer can be reduced, and the esthetics is further enhanced.

  In the dental appliance, the tongue side portion of the wire may be a central incisor, a lateral incisor, a cuspid tooth, a first premolar tooth, a second premolar tooth and a first large tooth of the tongue side of the appliance main body. A first connection portion for passing the portion corresponding to the molars, the connection portion passing between the canine and the first premolar, and placing the wire between the tongue side and the lip side of the appliance main body And a second connecting portion passing between the first molar and the second molar and arranging the wire between the labial side and the tongue side of the appliance body, the wire in the wire Preferably, the labial portion passes through a portion corresponding to the first premolar and the first molar on the labial side of the appliance body.

  According to this dental brace, the wire is not disposed in a portion that is easily viewed by another person when the wearer opens the mouth, and the wire is disposed in a portion that is not easily viewed by the other person. In order to firmly reinforce the force, it is more excellent in aesthetics and has high correction force and stability. In addition, since the second transition portion located at the deepest side in the mouth is configured to be put on the first molar, it is possible to fix the entire dental brace firmly to the dentition.

  According to the present invention, it is possible to provide a dental brace having the advantages of both excellent aesthetics and high correction power and stability.

FIG. 1A is a view looking up from below showing the overall configuration of the dentition appliance 1 applied to the dentition. FIG. 1B is a view looking up from an oblique lower side, showing the overall configuration of the dentition appliance 1 applied to the dentition. FIG. 2A is a view showing a state in which the dentition appliance 1 shown in FIG. 1 is attached to the upper dentition of a human and viewed from below the upper jaw to above the upper jaw. FIG. 2B is a view showing a state when the dentition appliance 1 shown in FIG. 1 is attached to the upper jaw dentition of a human and viewed from the lower right of the dentition to the upper left oblique. FIG. 2C is a view showing a state when the dentition appliance 1 shown in FIG. 1 is attached to the upper jaw dentition of a human and viewed from the front to the back of the dentition.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. This is merely an example, and the technical scope of the present invention is not limited to this.

<Dental brace 1>
〔overall structure〕
FIG. 1 is a view showing the overall configuration of a dental appliance 1 applied to a dentition, which is a preferred embodiment of the present invention. Among them, FIG. 1A shows a view looking up from below and FIG. 1B shows a view looking up obliquely from below. In the present invention, only the dentition brace 1 applied to the upper jaw is described because there is no big difference between the device applied to the upper jaw and the appliance applied to the lower jaw.

  The dentition appliance 1 includes an appliance main body 2 formed in a substantially U shape in a plan view and a metal wire 3 embedded in the appliance main body 2 so as to cover a part or all of a dentition.

  As a material which forms the apparatus main body 2, the layered body of ethylene-vinyl acetate copolymer resin (EVA), and ethylene-vinyl acetate copolymer resin (EVA) and a thermoplastic polyurethane elastomer (TPU) is suitable. These materials have an appropriate hardness and an appropriate elasticity, and when mounted on the dentition, the elastic force applies a force in the direction to correct the dentition. The orthosis main body 2 is formed into a desired shape in which a groove conforming to the shape of the dentition is formed by melting the material, and covering and curing the wearer's dentition on a model shaped as described later. .

  The wire 3 is a wire made of metal such as stainless steel or titanium, and is embedded in the device main body 2. The wire 3 applies an elastic force to the device body 2 in the direction of correcting the dentition, the correction force of the device body 2 is reinforced, and the dental device 1 is fixed so as to be supported at an appropriate position.

[Organization main body 2]
The brace body 2 is provided to fix and support each tooth and to recover a clean row of teeth. It is preferable that the color of the device main body 2 is transparent or translucent and colorless and transparent because it is hard to be recognized by others and is excellent in aesthetics.

  In the present embodiment, the device main body 2 is substantially in a plan view covering the lip side portion of the row of teeth (the portion on the near side when a third party views the row of the wearer of the rower 1 from the front) A substantially U-shape in a plan view covering the U-shaped sheet-like lip side 21 and the tongue side portion (portion on the back side when a third party views the dentition of the wearer of the dental device 1 from the front) And a sheet-like tongue side 22.

  The lip side 21 is provided with grooves 21TL1 to 21TL6, 21TR1 to 21TR6 conforming to the shape of the lip side of the wearer's dentition, and the tongue side 22 is on the tongue side of the wearer's dentition Grooves 22L1 to 22L6 and 22R1 to 22R6 that conform to the shape of the part are provided. When the lip side 21 and the tongue side 22 cooperate with each other to pinch the dentition from the front and back, a corrective force is exerted to hold the position of the dentition.

  The lip side 21 and the tongue side 22 are separated, and the lip side 21 and the tongue side 22 are connected by the wire 3. By connecting the labial side 21 and the lingual side 22 with the wire 3, even if a gap G (gap) is provided between the labial side 21 and the lingual side 22, the entire dental brace 1 is obtained. It is possible to expose the occlusal surface where the upper jaw dentition and the lower jaw dentition are in contact with each other. Then, a gap G is formed between the lip side 21 and the tongue side 22 so that the occlusal surface is exposed, and a portion corresponding to the occlusal surface in the orthosis main body 2 is cut away, thereby making it possible to talk When resting or bite, the wearer does not bite the main body 2 of the device, and usability without discomfort can be obtained.

  FIG. 2 is a view showing how the dentition appliance 1 in the present embodiment is attached to the upper dentition of a human. Among them, FIG. 2A is a view showing a state when the dental appliance 1 is attached to a human maxillary tooth row and viewed from below the upper jaw toward above the upper jaw. FIG. 2B is a view showing a state when the dentition brace 1 is attached to the upper jaw dentition of a human and visually recognized from the lower right of the dentition to the upper left. FIG. 2C is a view showing how the dentition brace 1 is attached to the upper jaw dentition of a human and viewed from the front to the back of the dentition.

  In the present embodiment, the appliance main body 2 includes the central incisors TR1 and TL1, the side incisors TR2 and TL2, the canines TR3 and TL3, the first premolars TR4 and TL4, the second premolars TR5 and TL5, and the first molars TR6. , TL6 are formed.

  As shown in FIGS. 2B and 2C, the lip side 21 of the main body 2 is defined by a lip upper end 21U which is an upper end thereof and a lip lower end 21L which is a lower end. On the other hand, as shown in FIGS. 2A and 2B, the tongue side 22 of the appliance body 2 is formed to cover not only the crown but also the gingival at all sites.

  Hereinafter, the lip side upper end 21U and the lip side lower end 21L of the lip side will be described in detail. The lip side 21 of the orthosis main body 2 in the present embodiment is an occlusal portion in a portion corresponding to the canines TR3, TL3, the first premolars TR4, TL4, the second premolars TR5, TL5 and the first molars TR6, TL6. To cover the coronal part (part that can be seen as teeth when opening the upper mouth from the gum) and gingival part (part that can not be recognized as teeth when opening the lower mouth from the gingiva) except the face, A lip upper end 21U and a lip lower end 21L of the lip side 21 are set. In the said part, since the labial part 21 covers to a gingival part, the correction power of dentition brace 1 can be held firmly.

  Specifically, the lip upper end 21U at a portion corresponding to the canines TR3, TL3, the first premolars TR4, TL4, the second premolars TR5, TL5 and the first molars TR6, TL6 is directed toward the back of the mouth The lip side 21 is formed to cover up to the gingival region at the site by setting it so as to incline upward.

  On the other hand, in the portions corresponding to the central incisors TR1 and TL1 and the side incisors TR2 and TL2, the lip side 21 covers only the coronal portion excluding the occlusal surface, and the lip side 21 reaches the gingival portion In order not to do so, a lip upper end 21U and a lip lower end 21L of the lip side 21 are set. Therefore, it is prevented that the main part 2 of a device becomes a hindrance at the time of opening a conversation or a mouth, etc., and a comfortable feeling of use can be obtained.

  Specifically, by setting the lip upper end 21U at a portion corresponding to the central incisors TR1 and TL1 and the side incisors TR2 and TL2 to be substantially horizontal, in the portion concerned, the lip side 21 has only the crown portion. It is formed to cover.

  In the present embodiment, the lip upper end 21U and the lip lower end 21L are set so that the lip side 21 covers up to the gingival portion at the portions corresponding to the canines TR3 and TL3. However, only the coronal portion is covered You may set it to

[Wire 3]
Return to FIG. The wire 3 is a wire made of metal such as stainless steel or titanium, and is embedded in the main body 2 made of resin by a method described later. The wire 3 includes a first wire member 31 provided at a position supporting the so-called front teeth, and a second wire member 32 provided at a position supporting the so-called back teeth, and is formed of a substantially U-shaped sheet It is embedded along the main body 2 of the brace. The elastic force of the curved metal wire forming the wire 3 urges the device body 2 in the direction of correcting the dentition, thereby reinforcing the correction force of the resin device body 2. In addition, the wire 3 in the present embodiment has a role of connecting the lip side 21 and the tongue side 22.

  The first wire member 31 includes a first lip side 31A passing through the lip side 21 of the appliance body 2, a first tongue side 31B passing through the tongue side 22, a lip side 21 and a tongue side 22. And a first connection portion 31C connecting the two. In addition, the second wire member 32 includes a second labial portion 32A passing through the labial side 21 of the orthosis main body 2, a second tongue side portion 32B traversing the lingual side 22, a labial side 21 and a lingual side 22. And a second connection portion 32C connecting the two.

  Thus, the connection connecting the wire 3 between the lip side passing through the lip side 21 of the appliance body 2, the tongue side passing through the tongue side 22, the lip side 21 and the tongue side 22 By forming the portion by the portion, it is possible to maintain the strength while reliably reinforcing the correction force of the resin main body 2 made of resin.

  Furthermore, as described above, in the present embodiment, the lip side 21 and the tongue side 22 of the device body 2 are separated. By connecting the labial side 21 and the lingual side 22 with the wire 3, even if a gap G (gap) is provided between the labial side 21 and the lingual side 22, the entire dental brace 1 is obtained. It is possible to expose the occlusal surface where the upper jaw dentition and the lower jaw dentition are in contact with each other.

  As shown in FIGS. 2A to 2C, in the present embodiment, the first tongue side portion 31B of the first wire member 31 includes the central incisors TR1 and TL1, the lateral incisors TR2 and TL2, and the canine on the tongue side 22. It passes through the part corresponding to TR3 and TL3. Further, the first connection portion 31C exhibits a function of connecting the lip side 21 and the tongue side 22 with the wire 3 through the canines TR3 and TL3 and the first premolars TR4 and TL4. Then, the first lip side portion 31A is set to pass through a portion corresponding to the first premolar teeth TR4, TL4 of the lip side 21.

  In addition, the second tongue side portion 32B of the second wire member 32 passes through the portions corresponding to the first premolars TR4, TL4, the second premolars TR5, TL5 and the first molars TR6, TL6 of the lingual side 22. . In addition, the second connection portion 32C has a function of passing the first molar teeth TR6, TL6 and the second molar teeth TR7, TL7 and connecting the lip side 21 and the tongue side 22 with the wire 3 Demonstrate. The second lip side portion 32A is set to pass through a portion corresponding to the first molars TR6 and TL6 of the lip side 21.

  Since the wire 3 does not pass through the lip side 21 at the portions corresponding to the central incisors TR1 and TL1, the side incisors TR2 and TL2, and the canines TR3 and TL3 by winding the wire 3 as described above, Even when the user opens his / her mouth when laughing or laughing, the wire 3 is less likely to be seen by others, and the psychological burden on the wearer can be reduced. Moreover, in the portions corresponding to the central incisors TR1 and TL1, the side incisors TR2 and TL2, the canines TR3 and TL3, the first premolars TR4 and TL4, the second premolars TR5 and TL5 and the first molars TR6 and TL6 Since the first lingual side portion 31 B and the second lingual side portion 32 B of the wire 3 pass through the lingual side 22, the effect of reinforcing the correction force of the orthosis main body 2 by the wire 3 is not lost. That is, in the region corresponding to the central incisors TR1 and TL1, the side incisors TR2 and TL2, and the canines TR3 and TL3, the wire 3 does not pass through the labial side 21 but passes through the tongue side 22. The effect of reducing the psychological burden and the effect of reinforcement by the wire 3 can be obtained simultaneously.

  Further, in the region corresponding to the first premolar teeth TR4, TL4 and the first molar teeth TR6, TL6, the wire 3 is configured to pass through both the lip side 21 and the tongue side 22. It is possible to prevent the reduction of the reinforcing force due to the absence of the wire 3 in front of 21. That is, although the wire 3 does not pass through the lip side 21 at the portions corresponding to the central incisors TR1 and TL1, the side incisors TR2 and TL2 and the canines TR3 and TL3, the first premolars TR4 and TL4 and the first large In the region corresponding to the molar teeth TR6 and TL6, the wire 3 passes through both the lip side 21 and the tongue side 22, so that the correction force of the device body 2 can be reliably reinforced.

  Furthermore, due to the presence of the two connecting portions (first connecting portion 31C, second connecting portion 32C) connecting between the labial side 21 and the tongue side 22, the labial side 21 of the brace body 2 and the tongue The corrective force acting between the side portions 22 can be reliably reinforced.

  Further, since the lip side 21 and the tongue side 22 are separate bodies, the force to press the dentition from the front and back when attaching the dental device 1 to the dentition is the first connection portion 31C and Provided by the two connecting portions 32C. That is, the wire 3 in the present embodiment has an effect of reinforcing the correction force of the resin main body 2, an effect of connecting the lip side 21 and the tongue side 22 of the main body 2, and the tooth brace 1. It simultaneously plays both of the effect of biasing in the direction of pressing on the row.

  And in wire 3 of dental brace 1 shown in this embodiment, it passes along a part corresponding to central incisors TR1 and TL1, side incisors TR2 and TL2 and canine TR3 and TL3 of tongue side 22 in orthosis main part 2 A portion corresponding to the first premolar teeth TR4 and TL4 of the lip side 21 through the first connection portion 31C between the canine teeth TR3 and TL3 and the first premolar teeth TR4 and TL4 Since it is configured to shift to the passing first lip side portion 31A, the lip side is the site corresponding to the central incisors TR1 and TL1, the side incisors TR2 and TL2 and the canines TR3 and TL3 that are easily viewed by others. Wire 3 does not exist. On the other hand, on the tongue side which is not visually recognized by others, the wire 3 is firmly reinforced. Therefore, when the wearer opens the mouth, the wire 3 is hard to be visually recognized by the other person, and there is an effect of firmly reinforcing the portion which is hard to be visually recognized by the other person.

  In addition, the second tongue side portion 32B passing through the portions corresponding to the first premolars TR4 and TL4, the second premolars TR5 and TL5 and the first molars TR6 and TL6 of the tongue side 22 in the orthosis main body 2 Second labial portion 32A passing through a portion corresponding to the first molars TR6, TL6 of the lip side 21 via the second connection portion 32C between the molars TR6, TL6 and the second molars TR7, TL7 Thus, the dentition appliance 1 can be fixed firmly to the dentition. That is, since the second connection portion 32C of the second wire member 32 is the portion located at the deepest side in the mouth at the portion of the wire 3, it is merely moved between the lip side 21 and the tongue side 22. It has not only a function but also a function to fix the whole dentition brace 1 to a dentition. And depending on the wearer, the second molars TR7, TL7 and the third molars (not shown) originally do not exist in the first place, or even if they are missing for reasons such as dental caries etc. partially Since the second connection portion 32C is configured to be put on the outside of the second molars TR7 and TL7 or the outside of the third molar (not shown) because the second connection portion 32C may be missing, the teeth of the dental brace 1 Fixing to the column may be unstable. In the present embodiment, the second connection portion 32C is configured to pass between the second molars TR7, TL7 and the first molars TR6, TL6, and be hooked to the first molars TR6, TL6, thereby providing teeth The row brace 1 can be firmly fixed to the dentition.

  And, in the present embodiment, the wire 3 uses a wire for a bracket smaller in diameter than a normal wire using a resin. Therefore, the space between the teeth is not wide, such as between the cuspid teeth TR3 and TL3 and the first premolar teeth TR4 and TL4, and between the first molar teeth TR6 and TL6 and the second molar teeth TR7 and TL7. Even at the site, the wire can be arranged to be inserted between the teeth, and as a result, even in the occlusal position and resting position, the wire is not bitten and the use is not felt uncomfortable. It can continue.

  In the present embodiment, the wire 300 is constituted by two wire members of the first wire member 31 and the second wire member 32. However, the present invention is not limited to this, and even if it is constituted by one wire member I do not care. For example, the tongue side portion passing through the tongue side 22 at a portion corresponding to the central incisors TR1 and TL1, the side incisors TR2 and TL2, and the canines TR3 and TL3, between the canines TR3 and TL3 and the first premolars TR4 and TL4. Corresponding to the first transition portion connecting the tongue side 22 and the lip side 21, the first premolars TR4, TL4, the second premolars TR5, TL5 and the first molars TR6, TL6. Part passing through the lip part 21 of the part, a second transition part transitioning between the first molars TR6, TL6 and the second molars TR7, TL7, and the first molars TR6, TL6, second It may constitute as one wire member which connected the tongue side part which passes through the tongue side 22 of a portion corresponding to premolar teeth TR5 and TL5 and first premolar teeth TR4 and TL4.

  In addition, a first connection portion 31C in which the connection portion of the wire 300 is disposed between the canine teeth TR3 and TL3 and the first premolar teeth TR4 and TL4, the first molar teeth TR6 and TL6 and the second molar teeth TR7 and TL7 And the second connection portion 32C connecting the two, but is not limited to this. For example, the first connection portion 31C may be disposed between the first premolars TR4, TL4 and the second premolars TR5, TL5, or the second connection portion 32C may be a second premolar TR5, In the configuration disposed between TL5 and the first molars TR6, TL6, or in the configuration where the second connection portion 32C is disposed between the second molars TR7, TL7 and the third molars TR8, TL8 It may be.

〔how to use〕
The usage method of the dentition brace 1 in this embodiment is demonstrated.

  In order to wear the dentition brace 1 formed as described above, first, with the mouth opened by the wearer, the respective grooves 21TL1 to 21TL6, 21TR1 to 21TR6, 22L1 formed on the dentition brace 1 The dentition appliance 1 is positioned at a position where the positions of the teeth 22L6 and 22R1 to 22R6 and the respective teeth approximately match, and the dentition appliance 1 is inserted into the dentition.

  Next, the first connection portion 31C is passed between the cuspid teeth TR3, TL3 and the first premolar teeth TR4, TL4, and the second connection portion 32C is between the second molar teeth TR7, TL7 and the first molar teeth TR6, TL6. Alignment is performed by passing through and the dentition brace 1 is worn on the dentition. At this time, since the grooves 21TL1 to 21TL6, 21TR1 to 21TR6, 22L1 to 22L6, and 22R1 to 22R6 conforming to the shapes of the respective teeth are formed in the orthosis main body 2, alignment can be performed more accurately.

  Although the lip side 21 and the tongue side 22 of the device body 2 are separately formed via the gap G, they are connected by the first connection portion 31C and the second connection portion 32C of the wire 3 . And, by the presence of the first connection portion 31C and the second connection portion 32C, the labial side 21 and the tongue side 22 are pressed against the dentition from back and forth, so that stable wearing is possible without being lost during wearing. Is possible.

〔Production method〕
The manufacturing method of the dentition brace 1 in this embodiment is demonstrated.

  First, prepare a model such as a plaster type simulating the shape of the wearer's dentition, and cover the flat sheet as the first material forming the main body 2 on the dentition formed in the model Place and heat the first material to dissolve. At this time, a layer of the first material conforming to the shape of the dentition is formed on the surface of the model.

  Next, a metal wire, which comprises the labial part, the connection part and the lingual part as described above, and which is the material of the wire 3 formed in the desired shape, is placed in a suitable position in the first material melted. Further, a flat sheet as a second material for forming the device body 2 is placed, heated and melted to form the dentition device 1.

  As described above, by melting and solidifying the material forming the appliance main body 2 so as to cover the model of the dentition, it is possible to form the appliance main body 2 having a groove adapted to the shape of the wearer's dentition. Further, the wire 3 can be firmly fixed to the main body 2 by arranging the wire 3 so as to be sandwiched between the first material and the second material.

  Then, the gap G is formed by cutting out a portion corresponding to the occlusal surface in the brace body 2, and the brace body 2 is separated into the lip side 21 and the tongue side 22. Thus, the dentition appliance 1 is formed.

  At this time, prepare a layered body in which harder flat plates are stacked on the same flat plate as the material forming the first material as the second material, and the harder flat plate is the outer side, that is, the opposite side to the dentition. It is preferable to dissolve it so that In this way, since the wire 3 is embedded with the same material as the material forming the first material, the wire 3 can be stably embedded in the orthosis main body 2 and hard on the outside. It is possible to provide the dentition appliance 1 having appropriate rigidity and stability as a whole, since various materials are used.

  As the first material, for example, a flat plate composed of ethylene-vinyl acetate copolymer (EVA) is used, and as the second material, ethylene-vinyl acetate copolymer (EVA) and thermoplastic polyurethane elastomer ( Flat plates composed of layered bodies with TPU) can be used. As a result, since the wire is sandwiched and embedded by the homogeneous material, the wire can be stably fixed to the resin material, and the orthodontic body having both hardness and flexibility can be corrected. It is possible to provide a dental brace that has a force, is easy to fit on the wearer's dentition, and does not slip during wearing. And, by making the first and second materials transparent or translucent, preferably colorless and transparent, it is possible to provide a highly dental esthetic appliance that is less likely to be viewed by others.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these embodiment mentioned above. Further, the effects described in the embodiments of the present invention only list the most preferable effects resulting from the present invention, and the effects according to the present invention are limited to those described in the embodiments of the present invention is not.

<Supplementary Note 1>
The dentition brace 1 of Supplementary Note 1 is as follows.

〔Technical field〕
The present invention relates to a dentition appliance for mounting on a dentition.

[Background Art]
In modern society, teeth and people suffering are increasing. Various techniques have been proposed for correcting the alignment of the dentition or as a device to be attached to the dentition so that the corrected dentition is not restored.

  For example, in the technique described in Japanese Patent Application Laid-Open No. 2004-000719, a metal wire is fixed to a resin which is a block of a resin material, and the dentition can be fixed by the elastic force of the wire.

  However, in the technique described in the above publication, the wire itself tends to be thick in order to fix the dentition with the wire. Therefore, from the wearer of the dentition brace, when you close the mouth during conversation, when closing the mouth when resting, or when you close the mouth to bite and bite, etc., the whole wire bites, and in the preferred feel There is a request that there is no. In addition, since the wire is wound around and fixed to the entire dentition, another person can visually recognize the wire when opening the equal mouth in conversation, causing a psychological burden on the wearer of the dental brace, and the esthetics There is also a demand for lack of

  As what solves the problem of the dentition brace using a wire like the above-mentioned gazette, what is called a mouthpiece type dentition brace which is shown by JP, 2009-050723, A is proposed.

  According to the technique of the above publication, a part or the whole of the dentition is covered with a cover formed of a transparent resin, and the dentition is fixed by the elastic force of the resin. By using a transparent resin cover, it is possible to cover the drawbacks of the wire device that the appearance is not good.

[Summary of the invention]
[Problems to be solved by the invention]
However, in order to fix the dentition with the resin cover that covers the dentition, when engaging in conversation, resting, etc., the cover will bite together. Therefore, there is room for further improvement in the feel improvement at the time of wearing like the equipment made of wire. In addition, since the dentition is corrected and fixed only by the resin cover, the force applied to the dentition is weak, and a shift may occur during wearing. Therefore, there is room for improvement in terms of improvement in stability.

  In view of these problems, the present invention aims to provide a dental brace having both excellent aesthetics and high correction power and stability. In the present invention, the meaning represented by the term "correcting force" includes not only the force for actually moving the dentition but also the force for preventing the corrected dentition from returning.

[Means for Solving the Problems]
The inventors form the main body of the appliance with a transparent or semi-transparent material, and cover the dentition so as to sandwich the lip and lip from the lip side, and the position of the target tooth for the lip side pinched from the lip side. It has been found that the above object can be achieved by making the height different depending on the aspect of the invention, and the present invention has been completed. Specifically, the present invention provides the following.

  The invention according to the first aspect is an appliance made of a substantially transparent or translucent material having elasticity and formed in a substantially U shape in a plan view covering a part or all of a dentition of a human body to be worn It has a main body, and the device main body has a lip side covering the lip side of the dentition, and a tongue side covering the lingual portion of the dentition, and the main body has a central incisor, a lateral incisor The first premolar, the second premolar, and the first molar, and the height of the lip side of the main body of the appliance is the same as that of the first premolar, the second premolar, and the second premolar; The area corresponding to one molar is set so as to cover up to the coronal part and the gingival part, and the part corresponding to the central incisor and the lateral incisor covers the coronal part and does not reach the gingival part Providing a denture brace that is set up as follows.

  According to the invention of the first aspect, since the dentition is fixed by the transparent or semi-transparent appliance body covering a part or all of the dentition, it is possible to provide a dentition orthodontic appliance excellent in aesthetics. Further, the orthodontic body has a lip side and a tongue side, and covers the dentition so as to sandwich from the lip side and the tongue side, so that it is possible to provide an orthodontic orthodontic with a strong correction force. Furthermore, the height of the labial side in the orthosis main body is set so as to cover up to the coronal part and the gingival part in the part corresponding to the canine, the first premolar, the second premolar and the first molar. Therefore, it is possible to hold a strong corrective force, and in a part corresponding to the central incisor and the side incisor, it is set so as to cover the coronal part excluding the occlusal surface and not to reach the gingival part Accordingly, it is possible to provide a dental brace that can provide a comfortable feeling of use without the brace body being in the way when opening the mouth.

Reference Signs List 1 dental brace 2 brace body 21 labial side 22 tongue side 3 wire 31 first wire member 32 second wire member G gap

Claims (4)

The device comprises an appliance body made of a substantially transparent or translucent material having elasticity and formed in a substantially U shape in a plan view covering a part or all of the dentition of the human body to be worn;
The orthosis body is embedded a metal wire, which the wire urges the elastic force in a direction to correct dentition,
The device body is
The lip side covering the lip side of the dentition,
The tongue side covering the tongue side of the dentition,
The wire is
A tongue side portion passing through the tongue side of the appliance body;
A connecting portion connecting between the tongue side and the lip side;
And a lip portion passing through the lip portion;
The lip side portion of the wire is not disposed at a portion corresponding to the central incisor, the side incisor and the cuspid in the lip side of the appliance body, and the central incisor in the tongue side of the appliance body, A dental appliance , wherein the tongue side portion of the wire is disposed at a portion corresponding to a lateral incisor and a canine . The dentition appliance according to claim 1, wherein the appliance body comprises a two-layer structure of a first material having elasticity and a second material harder than the first material. The lingual portion of the wire passes through portions corresponding to the central incisors, lateral incisors, canines, first premolars, second premolars and first molars of the tongue side of the appliance body,
The connection part is
A first connection portion for passing the wire between the lingual side and the lip side of the appliance body through between the canine and the first premolar;
And a second connection portion for passing the wire between the labial side and the tongue side of the appliance body through between the first molar and the second molar.
It said labial portion in the wire passes through the portion corresponding to the first premolar and the first molar of the lip side of the appliance body, dental appliance according to claim 1 or 2. The dental appliance according to any one of claims 1 to 3 , wherein the wire is a wire for a bracket.

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