JP2009247676A - Occlusion diagnostic plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an occlusion diagnostic plate, wherein the upper and lower teeth occlusion conditions, the inclination of the occlusion plane or positional dislocation between the upper and lower jaws are easily grasped based on occlusion traces recorded on the plate, and the plate is simplified in structure to reduce its manufacture cost. <P>SOLUTION: The occlusion diagnostic plate 1 is a flat plate 2 made of a plastic material. Its use method is characterized by the point that the plate 2 is inserted into a subject's mouth, and that he or she is instructed to occlude and deform the plate 2 for use. The plate 2 also has a bending part 5, by which the plate 2 can be bent open or closed. Further, the plate 2 has a first member 3 arranged on its surface in contact with teeth to visually confirm the occlusion traces left on the first member 3, and a second member 4 provided on the reverse surface to the surface in contact with teeth to reinforce the strength of the plate 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an occlusion diagnostic plate used for detecting the occlusal state of upper and lower teeth.

  The structure of the occlusal site in the human body is such that the maxilla is continuous with the skull and the mandible is suspended from the maxilla by muscles. These positional relationships between the maxilla and mandible are known to have a significant effect on the health of the human body. For example, if the mandible shifts to the left or right with respect to the maxilla, the centerline of the face called the midline The face shape may be distorted and the shape of the face may be distorted, or the posture of the whole body may be distorted to cause symptoms such as increased burden on the internal organs and fatigue.

  For this reason, occlusal treatment that corrects the occlusion of the upper and lower jaw dentition is widely performed, but in order to perform appropriate treatment, it is necessary to accurately grasp the condition of the patient's upper and lower jaw bones prior to treatment . Therefore, for example, Patent Document 1 proposes an occlusion diagnostic plate using a pressure sensitive developer as a diagnostic tool for detecting the occlusal state of upper and lower teeth.

  As shown in FIG. 6A, the occlusion diagnosis plate 30 has a configuration in which a first member 31 coated with carbon ink and a second member 32 coated with a pressure sensitive developer are bonded together. As the pressure-sensitive developer, a microcapsule encapsulating a dye is used.

  In the diagnosis of the occlusal state, the occlusal diagnosis plate 30 is occluded while being inserted into the oral cavity of the subject. At this time, carbon ink adheres to the teeth touching the first member 31, and at a place where the upper and lower teeth are in contact and a large occlusal pressure is applied to the occlusion diagnosis plate 30, as shown in FIG. Furthermore, the microcapsule bursts and the colored portion 33 appears. For this reason, by observing the coloring state of the teeth and the colored portion 33 of the occlusion diagnosis plate 30, it is possible to grasp the presence or absence and strength of the occlusion.

  Further, in Patent Document 2, as shown in FIGS. 7A and 7B, a microcapsule 34 encapsulating a dye is included, and a wax (dental wax) layer 36 ( An occlusal diagnosis plate 37 coated with 36a, 36b) has been proposed. In this occlusion diagnosis plate 37, a portion where the occlusal pressure is strong is recorded as a colored portion, and the dentition of the subject appears as irregularities on the wax layer 36, so that it is possible to grasp the condition of the tooth arrangement. .

JP-A-5-168664 JP-A-6-125929

  However, in the occlusal diagnosis plate 30 described in Patent Document 1, since the portion with a strong occlusal pressure is only recorded as the colored portion 33, the information that can be read from the occlusal diagnosis plate 30 is only the occlusal state of the upper and lower teeth, It is difficult to grasp the inclination of the lower jaw with respect to the upper jaw (hereinafter referred to as “oblique of the occlusal plane” as appropriate) and the shift of the lower jaw with respect to the upper jaw in the front-rear and left-right directions (hereinafter referred to as “positional displacement between the upper and lower jaws” as appropriate). For this reason, even if the subject's condition is examined using the occlusion diagnostic plate 30, it can only be used for some dental treatments such as shaving the top of a tooth with strong occlusion, and the jaw position is corrected. It is insufficient as a diagnostic tool.

  On the other hand, in the occlusion diagnosis plate 37 described in Patent Document 2, it is possible to diagnose the occlusal state as well as the tooth arrangement state, but the upper and lower dentitions are separately provided on the front and back wax layers 36. Since it is recorded, it is only possible to grasp the upper and lower teeth arrangement, and it is difficult to grasp the positional deviation between the upper and lower jaws. Also, regarding the inclination of the occlusal plane, it is difficult to read directly from the sheet, like the occlusion diagnosis plate 30 described in Patent Document 1.

  Furthermore, each of the occlusion diagnosis plates 30 and 37 described in Patent Documents 1 and 2 has a special structure such as enclosing fine microcapsules and is structurally complicated. There is also a problem that is likely to soar.

  Therefore, the present invention has been made in view of the above problems in the prior art, and based on the occlusion trace recorded on the plate, the occlusal state of the upper and lower teeth, the inclination of the occlusal plane, and the position between the upper and lower jaws It is an object of the present invention to provide an occlusion diagnostic plate that can easily grasp the deviation and that can simplify the structure and reduce the price.

  In order to achieve the above object, the present invention is an occlusion diagnostic plate, which is composed of a plate-like plate body made of a plastic material, and is occluded with the plate body inserted in the oral cavity of a subject. The plate main body is deformed and used.

  According to the present invention, since the plate main body is formed of a plastic material, when the plate main body is bitten by a subject, not only irregularities are formed on the surface, but also the overall shape of the plate main body changes. Arise. By observing the distortion of the shape of the plate body together with the unevenness formed on the surface, it is possible to quickly grasp the bias of the occlusal pressure, etc., and easily grasp the occlusal state of the upper and lower teeth and the inclination of the occlusal plane Can be identified. In addition, since the occlusion diagnosis plate can be configured only by forming the plate body from a plastic material, the overall structure can be simplified and the cost can be reduced.

  The occlusion diagnosis plate may include a bent portion formed in the plate body, and the plate body may be configured to be opened and closed through the bent portion.

  According to the above configuration, the plate body is formed of a plastic member, and can be opened and closed through the bent portion. It is possible to appropriately transfer the upper and lower jaw dentition and the upper and lower teeth occlusion state to each of the surface and the contact surface with the lower teeth. In addition, since the occlusion diagnosis plate can be spread out after the occlusion diagnosis plate is taken out from the oral cavity of the subject, the upper dentition mark and the lower dentition mark are arranged in a single plane. Can be displayed side by side on top. For this reason, both dentition traces can be visually recognized at the same time, and the upper jaw position and the lower jaw position can be easily compared.

  In the occlusion diagnostic plate, the plate body is disposed on the contact surface side with the teeth, the first plastic member for visually confirming the occlusal trace, and the surface side opposite to the contact surface side, the plate And a second plastic member for reinforcing the strength of the main body. According to this configuration, it is possible to ensure sufficient strength to prevent the subject from biting and tearing while improving the visibility of the tooth marks transferred to the occlusion diagnosis plate.

  In the occlusion diagnostic plate, the first plastic member can be made of an aluminum film, and the second plastic member can be made of a balsa plate formed thicker than the first plastic member.

  The occlusion diagnostic plate may include a convex portion formed at both ends of the plate body in the longitudinal direction and disposed at the center of the plate body in the short direction. This convex part can be used as a handle part when using the occlusion diagnostic plate, and also as a mark for centering when inserting the occlusal diagnostic plate into the oral cavity of the subject. be able to.

  As described above, according to the present invention, it is possible to easily grasp the occlusal state of the upper and lower teeth, the inclination of the occlusal plane, and the positional deviation between the upper and lower jaws based on the occlusion trace recorded on the occlusion diagnosis plate. In addition, the structure can be simplified and the price can be reduced.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a first embodiment of an occlusion diagnosis plate according to the present invention, and this occlusion diagnosis plate 1 is made of a plastic material and includes a plate body 2 having a substantially elliptical shape. The plastic material means a material having a property of being deformed when a predetermined force is applied and maintaining a deformed state even when the force is removed.

  As shown in FIG. 2, the plate main body 2 includes a first member 3 formed on the surface side that comes into contact with the subject's teeth, and a second member 4 attached to the back surface of the first member 3. With. Here, the reason why the plate body 2 has a two-layer structure is to reinforce the strength of the occlusion diagnosis plate 1 while improving the visibility of the occlusal trace.

  That is, for the purpose of making it easy to check the dentition and occlusal state, a member that is easy to visually recognize unevenness and deformation is used on the contact surface side of the tooth, while a member having excellent strength is arranged on the opposite surface side. By doing so, the overall strength of the plate body 2 is increased so that the subject will not be damaged even if the subject bites it strongly.

  For this reason, it is preferable that the first member 3 is formed by processing a plastic material having gloss such as aluminum into a thin plate shape, and the second member 4 is a light material such as a balsa. It is preferable to form a strong plasticizer material by processing it to a thickness of about 5 mm. In addition, when both visibility and intensity | strength can be ensured with a single member, it is sufficient to form the plate main body 2 from one member, and it is not necessary to use two members.

  As shown in FIG. 1, a bent portion 5 extending along the short direction of the plate body 2 is formed at the center portion in the longitudinal direction of the plate body 2. The bent portion 5 is for folding the plate body 2 in half, and the occlusal diagnosis plate 1 is configured to be opened and closed via the bent portion 5.

  Further, convex portions 6 a and 6 b protruding outward are formed integrally with the plate body 2 at both ends in the longitudinal direction of the plate body 2. These convex portions 6a and 6b are both arranged at the center in the short direction of the plate body 2 and can be used as a handle portion when the occlusal diagnosis plate 1 is used. It can also be used as a mark for centering when inserted into the examiner's mouth.

  Next, a method for using the occlusion diagnostic plate 1 having the above-described configuration will be described with reference to FIGS.

  In using the occlusion diagnosis plate 1, first, as shown in FIG. 3, the occlusion diagnosis plate 1 is folded in half through the bending portion 5, and the occlusion diagnosis plate 1 is then placed in the oral cavity of the subject along the arrow B direction. Insert inside. Next, the patient bites the occlusion diagnosis plate 1 and brings the upper teeth into contact with one surface (hereinafter referred to as “first contact surface” as appropriate) 1a of the occlusion diagnosis plate 1 and the lower teeth on the other surface. (Hereinafter referred to as “second contact surface” as appropriate) 1b.

  When the subject bites the occlusion diagnosis plate 1 strongly, the occlusion diagnosis plate 1 is sandwiched between the upper and lower teeth, and as a result, the overall shape of the occlusion diagnosis plate 1 is deformed by the pressure received from the upper jaw and the lower jaw, Unevenness is formed on the surface of the plate where the upper teeth and lower teeth mesh. Thus, the subject's upper jaw tooth pattern is transferred to the first contact surface 1a, and the lower jaw tooth shape is transferred to the second contact surface 1b.

  Next, the occlusion diagnosis plate 1 is taken out from the oral cavity of the subject, and changes in the shape of the occlusion diagnosis plate 1 and occlusion traces recorded on the plate surface are observed.

  At that time, by observing the distortion of the overall shape of the occlusion diagnosis plate 1 together with the position, size, depth, etc. of the tooth marks 7 (see FIG. 4) formed on the occlusion diagnosis plate 1, the occlusal pressure bias, etc. Can be quickly grasped, and the occlusal concentration part and the lacking part can be easily identified. In addition, by comparing the left and right of the occlusal trace formed on the occlusal diagnosis plate 1 and observing the shape of each tooth trace 7, the occlusal cusp slope and the direction of each tooth can also be grasped. This makes it possible to know the presence or degree of one-sided contact occlusion, that is, inner inclination (contact only on the cheek side) and outer inclination (contact only on the tongue side), and whether or not there is an abnormality in the inclination of the lower jaw relative to the upper jaw Can be diagnosed.

  Furthermore, by observing the dental mark formed on each of the first and second contact surfaces 1a and 1b, it is possible to grasp the contact cusp line of the entire maxillary and mandibular dentition. Then, from the dental mark on the first contact surface 1a, the orientation of the upper jaw reflecting the state of the dental arch and the head position of the upper tooth can be read, and from the dental mark on the second contact surface 1b, The state of the dental arch of the lower tooth can be read.

  At this time, as shown in FIG. 4, the occlusal diagnosis plate 1 is set in a double-sided state so that the upper dentition and lower dentition are arranged and displayed on one plane. Can do. For this reason, both dentition traces can be visually recognized at the same time, and the upper jaw position and the lower jaw position can be easily compared. Then, from the comparison result of the dental mark, it is possible to read the distortion between the maxillary dentition and the mandibular dentition, that is, the positional deviation of the mandible from front to back and right and left with respect to the upper jaw.

  As described above, according to the present embodiment, it is possible to easily grasp the occlusal state of the upper and lower teeth, the inclination of the occlusal plane, and the positional deviation between the upper and lower jaws based on the occlusion trace recorded on the plate. In addition, since the occlusion diagnosis plate 1 can be configured only by forming the plate body 2 from a plastic material, the overall structure can be simplified and the cost can be reduced.

  Next, a second embodiment of the occlusion diagnostic plate according to the present invention will be described with reference to FIG.

  The occlusion diagnosis plate 20 according to the present embodiment is configured by a substantially U-shaped plate body 21 as shown in FIG. The plate body 21 is also made of a plastic material in the same manner as the plate body 2 of the first embodiment. As shown in FIG. 5B, the first member 22a is formed on the front and back surfaces of the plate body 21. , 22b and a second member 23 formed between the first members 22a, 22b.

  Here, the first members 22a and 22b are the same as the first member 3 shown in FIG. 2, and are formed of, for example, an aluminum film. The second member 23 is also the same as the second member 4 shown in FIG. 2, and is formed of, for example, a balsa plate having a thickness of about 5 mm.

  The first members 22a and 22b are preferably formed integrally as shown in FIG. 2B, rather than being formed separately on the front and back surfaces of the plate body 21. In this case, even if a large occlusal pressure is applied to the occlusion diagnosis plate 20, it is possible to avoid the first members 22a and 22b from being peeled off and the positions of the two members from shifting. Incidentally, in FIG. 2B, as a configuration example in which the first members 22a and 22b are integrally formed, the second member 4 is covered with one member (for example, one aluminum film or the like), and the tip portion What bonded 22c with the harmless adhesive agent is illustrated.

  In the occlusion diagnostic plate 20 according to the present embodiment, since the bent portion is not provided, it is not possible to make the spread state, and the upper and lower teeth are marked on a single plane. Although they cannot be arranged on top of each other, the same actions and effects as those of the first embodiment can be obtained except for this point.

  That is, since the plate body 21 is formed of a plastic material, when the occlusion diagnostic plate 20 is bitten by a subject, not only irregularities are formed on the front and back surfaces of the plate, but also the overall shape of the plate body 21. Changes also occur. Then, by observing the distortion of the shape of the plate body 21 together with the unevenness formed on the front and back surfaces, it is possible to quickly grasp the bias of the occlusal pressure, etc., the occlusal state of the upper and lower teeth and the inclination of the occlusal plane Can be easily identified.

  Also in the present embodiment, the occlusal diagnosis plate 20 can be configured simply by forming the plate body 21 from a plastic material, so the overall structure can be simplified and the cost can be reduced. It becomes.

  The occlusal diagnosis plates 1 and 20 according to the present invention can be used not only when diagnosing the state before treatment but also as a diagnostic tool when diagnosing the progress after treatment.

It is a block diagram which shows 1st Embodiment of the occlusion diagnostic plate concerning this invention. It is an AA arrow directional view of the occlusion diagnostic plate of FIG. It is a perspective view when the occlusion diagnostic plate of FIG. 1 is bent. It is a top view which shows an example of the biting trace in the spread state of the biting diagnostic plate of FIG. It is a block diagram which shows 2nd Embodiment of the occlusion diagnostic plate concerning this invention, (a) is an upper drawing, (b) is a CC arrow directional view of (a). It is a top view which shows the conventional occlusion diagnostic plate, (a) is an unused state, (b) is a state after use. It is a figure which shows the conventional occlusion diagnostic plate, (a) is a top view, (b) is the DD line | wire arrow line view of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Occlusion diagnostic plate 1a 1st contact surface 1b 2nd contact surface 2 Plate main body 3 1st member 4 2nd member 5 Bending part 6 (6a, 6b) Convex part 7 Tooth trace 20 Occlusion diagnostic plate 21 Plate Main body 22 (22a, 22b) First member 22c Tip portion 23 Second member

Claims (5)

Consists of a flat plate body made of plastic material,
An occlusal diagnosis plate characterized in that the plate body is occluded while being inserted in the oral cavity of a subject, and the plate body is deformed and used.   The occlusion diagnostic plate according to claim 1, further comprising a bent portion formed on the plate body, wherein the plate body is configured to be openable and closable via the bent portion.   The plate body is disposed on the contact surface side with the teeth, and is disposed on the first plastic member for visually recognizing the occlusal trace and on the surface side opposite to the contact surface side, and reinforces the strength of the plate body. The occlusion diagnosis plate according to claim 1, further comprising a second plastic member for the purpose.   The occlusion diagnosis according to claim 3, wherein the first plastic member is made of an aluminum film, and the second plastic member is made of a balsa plate formed thicker than the first plastic member. plate.   The occlusion diagnosis plate according to any one of claims 1 to 4, further comprising a convex portion formed at both ends in the longitudinal direction of the plate body and disposed at a central portion in the short direction of the plate body. .

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