TWI750097B - Orthodontic device - Google Patents

Abstract

The subject of the present invention is to provide an orthodontic device that can simplify the structure and promote the movement of the dentition. The solution is as follows: the orthodontic appliance (10) is installed in such a way as to cover the tooth flesh (7) of the maxillary dentition part (3) at least located in the interdental part (9a). In addition, the orthodontic appliance (10) is provided with a permanent magnet (12) at a location corresponding to the tooth (7) at least located in the interdental portion (9a). Furthermore, the orthodontic appliance (10) can also be configured to be installed so as to cover the maxillary dentition part (3) and can be covered on the mouthguard (1) for correcting the maxillary dentition part (3).

Description

Orthodontic device

The present invention relates to an orthodontic device that promotes the movement of the dentition when the dentition is straightened.

Conventionally, when correcting the dentition, there is, for example, a system described in Patent Document 1 for promoting the movement of the dentition. In this system, the first type of current is generated between each of the plurality of lingual electrodes and a specific one of the plurality of buccal electrodes in response to the control circuit and power supply, or the second type of current is generated Between the electrodes adjacent to the plurality of lingual electrodes and between the electrodes adjacent to the plurality of buccal electrodes, each current is configured in a manner that can be individually controlled in response to the control circuit. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] JP 2017-508521 Publication

[The problem to be solved by the invention]

However, in the conventional system described in Patent Document 1 mentioned above, since a control circuit, a power supply, a plurality of lingual electrodes, and a plurality of buccal electrodes are provided, the structure becomes complicated and the control becomes complicated. The problem.

The present invention was developed in view of such problems, and the subject is to provide an orthodontic device that can simplify the structure and promote the movement of the dentition. [Technical means to solve the problem]

In order to achieve this problem, the invention described in claim 1 is characterized in that the orthodontic device body is mounted in such a way as to cover at least the tooth flesh of the dentition portion located at the root of the tooth. A permanent magnet is provided at a portion corresponding to the tooth flesh of the tooth root portion.

In addition, the invention described in claim 2 is added to the configuration described in claim 1: the orthodontic device body is installed so as to cover the dentition portion and can be covered to correct the dentition The mouthpiece (mouthpiece) of the part is featured.

In addition, the invention described in claim 3 is characterized by adding to the structure described in claim 1: the above-mentioned orthodontic device body is installed in a manner to cover the above-mentioned dentition and corrects the above-mentioned dentition. .

Furthermore, the invention described in claim 4 is added to the structure described in any one of claims 1 to 3: the permanent magnet is provided at a location corresponding to each of the plurality of tooth roots, Come as a feature.

In addition, the invention described in claim 5 is added to the structure described in any one of claims 1 to 3: the permanent magnet is provided in a portion spanning a plurality of the tooth roots, as feature.

In addition, the invention described in claim 6 is added to the structure described in any one of claims 1 to 5: the permanent magnet is formed in a plate shape along the shape of the teeth, as feature.

In addition, the invention described in claim 7 is characterized by adding to the structure described in any one of claims 1 to 6 that the permanent magnet is detachably installed in the body of the correction device.

In addition, the invention described in claim 8 is added to the structure described in any one of claims 1 to 7: the permanent magnet is facing the tooth root side with respect to the neck line of the tooth row. It’s a feature that it is arranged at a distance of 4mm or more.

In addition, the invention described in claim 9 is characterized by comprising: a pair of left and right base portions locked to the inner side of the dentition portion, and a pair of base portions provided between the left and right pair of base portions. A means for expanding the space toward the outside; a permanent magnet is provided at a portion corresponding to the tooth between the roots of the tooth row portion of the pair of left and right bases.

In addition, the invention described in claim 10 adds to the structure described in claim 9: a force is applied to the respective outer edge portions of the pair of left and right base portions to expand the position of the dentition portion, and to The permanent magnet is provided on the inner side of each outer edge part as a feature.

In addition, the invention described in claim 11 is added to the structure described in claim 9 or 10: the permanent magnet is provided between the crown portion and the crown portion of the dentition, respectively The location corresponding to the location is used as a feature.

In addition, the invention described in claim 12 is added to the structure described in any one of claims 9 to 11: the permanent magnet is facing the tooth root side with respect to the neck line of the tooth row. It’s a feature that it is arranged at a distance of 4mm or more. [Effects of the invention]

According to the invention described in claim 1, since the orthodontic device body is mounted so as to cover at least the tooth flesh located in the interdental portion of the dentition, the orthodontic device body is corresponding to the tooth flesh located at least in the interdental portion The permanent magnet is installed in the part, so the structure is extremely simple, the blood flow in the tooth flesh and alveolar bone located in the tooth root part is improved, and the movement of the dentition part can be promoted.

In addition, according to the invention described in claim 2, since the orthodontic device body is installed so as to cover the dentition and set to be able to cover the mouthpiece of the orthodontic portion, in addition to the mouthguard and the orthodontic device body In addition to correcting the dentition, permanent magnets can be used to further promote the movement of the dentition.

In addition, according to the invention described in claim 3, since the orthodontic device body is installed and corrects the dentition portion so as to cover the dentition portion, the orthodontic device body can be used to correct the dentition portion and promote the improvement of the dentition portion. move.

In addition, according to the invention described in claim 4, since the permanent magnets are provided at locations corresponding to each of the plurality of tooth roots, it is possible to impart an equal magnetic force to each tooth located at the tooth roots, so that each The blood flow in the tooth flesh and alveolar bone is improved, and the movement of the dentition can be further promoted.

In addition, according to the invention described in claim 5, since the permanent magnet is provided at a portion spanning a plurality of tooth roots, it is possible to reduce the number of permanent magnets to be installed, making it easier to manufacture.

In addition, according to the invention described in claim 6, since the permanent magnet is formed in a plate shape along the shape of the tooth, the permanent magnet can be in close contact with the tooth and the blood in the tooth and the alveolar bone can flow. More preferably, it becomes possible to further promote the movement of the dentition part.

In addition, according to the invention described in claim 7, since the permanent magnet is detachably provided in the correcting device body, permanent magnets with different magnetic flux densities can be replaced one by one.

In addition, according to the invention described in claim 8, since the permanent magnet is arranged at a distance of 4 mm or more from the tooth root side with respect to the tooth neck line of the tooth row, the tooth flesh and alveolar bone located between the tooth roots The blood flow is significantly improved, and it becomes possible to further promote the movement of the dentition.

In addition, according to the invention described in claim 9, since a pair of left and right bases is provided with permanent magnets at the positions corresponding to the tooth flesh between the roots of the dentition, the permanent magnets can be positioned on the tooth The blood flow in the tooth flesh and alveolar bone between the roots is improved, and the correction period of the dentition can be further shortened.

In addition, according to the invention described in claim 10, since the respective outer edge portions of the pair of left and right base portions are provided with a force to expand the position of the tooth row portion, and permanent magnets are provided on the inner side of each outer edge portion, it becomes The permanent magnet can further promote the movement of the dentition.

In addition, according to the invention described in claim 11, since the permanent magnets are respectively provided in the positions corresponding to the positions between the crown and the crown of the dentition, the dentition can be corrected and promoted Movement of the dentition.

In addition, according to the invention described in claim 12, since the permanent magnet is arranged at a distance of 4 mm or more from the tooth root side with respect to the tooth neck line of the tooth row portion, the tooth flesh and alveolar bone located in the tooth root portion The blood flow is significantly improved, and it becomes possible to further promote the movement of the dentition.

Hereinafter, an embodiment of the present invention will be described. [First Embodiment of the Invention] Figures 1 to 3 show the first embodiment of the present invention.

Fig. 1 is a bottom view showing a state where the orthodontic device in the first embodiment of the present invention is attached to the maxillary dentition. Fig. 2 is a perspective view showing a state in which the orthodontic device in the first embodiment is attached to the maxillary dentition. Figure 3 is a cross-sectional view taken along the line III-III of Figure 1.

In addition, in each of the following embodiments, an example in which the orthodontic device body is inserted into the oral cavity and attached to the maxillary dentition will be described. In addition, in the following embodiments, the orthodontic device body is attached to the maxillary dentition, with the anterior tooth side as the front side, the posterior tooth side as the back side, the tongue side as the inner side, and the buccal side as the inner side. It will be explained as the outside. Here, the front teeth are incisors, and include left and right middle incisors, left and right side incisors, and left and right canine teeth. The posterior teeth are molars, and they have: the first and second small molars on the left and right, and the first to third molars on the left and right.

As shown in Figs. 1 and 2, the present embodiment is provided with an orthodontic appliance 10 as the body of the orthodontic device that can be covered on the mouthpiece 1. The mouthguard 1 is inserted into the oral cavity 2 and installed so as to cover the upper jaw dentition 3. The mouthguard 1 is mounted on the upper jaw dentition part 3, expands the upper jaw dentition part 3 in the lateral direction, and is molded into a shape that moves the teeth of the upper jaw dentition part 3 in the direction that should be arranged neatly (Aligner).

The mouthguard 1 is made of transparent plastic to cover all the teeth of the upper jaw dentition 3, that is, cover the crown 6 of the anterior teeth 4 and the posterior teeth 5 of the upper jaw dentition 3 and have a hardness that maintains a predetermined shape. The mouthguard 1 is a course of orthodontic treatment by periodically preparing, for example, a plurality of different sizes or different hardnesses, and periodically replacing them.

The orthodontic tool 10 is provided to cover the mouthguard 1 attached to the upper jaw dentition 3 so as to cover the crown portions 6 of the front teeth 4 and the posterior teeth 5 of the upper jaw dentition 3. The orthodontic tool 10 is made of a resin material having the same elastic modulus as a whole, and is integrally formed to have a uniform thickness of, for example, 1 mm. Specifically, the above-mentioned resin material is selected from, for example, urethane resins such as polyurethane, silicone resins, polyolefin resins, styrene resins, and acrylic resins. The above-mentioned resin material is preferably colorless, transparent or milky white, so that when inserted into the oral cavity 2, it is inconspicuously attached to the maxillary dentition portion 3 and has excellent aesthetics.

The orthodontic appliance 10 is, like the mouthguard 1, a molded article (braces) shaped to move each tooth of the upper jaw dentition part 3 in a direction that should be arranged neatly. The orthodontic appliance 10 covers all the teeth of the upper jaw dentition 3 in the oral cavity 2, that is, covers the anterior teeth 4 and the posterior teeth 5 of the upper jaw dentition 3, and has a hardness for maintaining a predetermined shape. The orthodontic appliance 10 has a hardness lower than that of the mouthguard 1. The orthodontic appliance 10 is formed along the shape of the arch of the maxillary dentition 3, covering the crown 6 as the occlusal part of the anterior teeth 4 and the posterior teeth 5, and extending to position The tooth portion 8 on the side of the tooth 7. In other words, the orthodontic tool 10 is installed as shown in FIG. 3 in such a way that the tooth root portion 9 and the tooth root portion 9a of the upper jaw dentition portion 3 are covered. Here, the inter-root portion 9a refers to the portion between the root portion 9 and the root portion 9 of the front tooth 4 or the rear tooth 5. In addition, the orthodontic appliance 10 has a hardness lower than that of the mouthguard 1, that is, since it is formed relatively softly, it is formed even if it extends to the tooth part 8 located on the side of the tooth part 7, and is opposite to the tooth part 8. In other words, there is no feeling of boredom, and a higher sense of installation can be achieved.

In the orthodontic tool 10, a permanent magnet 12 is embedded in a portion corresponding to the tooth flesh 7 in the inter-tooth root portion 9a. In this embodiment, ten permanent magnets 12 are provided on the lingual side (inner side), and 10 permanent magnets 12 are provided on the buccal side (outer side) facing each of these permanent magnets 12. Specifically, as shown in FIG. 1, the permanent magnets 12 are provided with six respective front teeth 4 on the left and right, and four permanent magnets 12 on the left and right rear teeth 5 respectively. In this case, the permanent magnet 12 may also be arranged on the lingual side (inner side) and buccal side (outer side) respectively corresponding to the teeth 7 of all the root interdental parts 9a of the left and right front teeth 4 and back teeth 5 The way to implement.

The permanent magnet 12 is formed in a disc shape as shown in FIG. 2. In this case, the permanent magnet 12 is not limited to a circular plate shape, and may be formed in a semicircular shape, an elliptical shape, or a polygonal plate shape.

As shown in FIG. 2, the permanent magnet 12 is arranged at a distance D from each neck line L of the front tooth 4 and the rear tooth 5 by 4 mm or more toward the tooth root 9 side. That is, when the distance D between the permanent magnet 12 and the neck line L of the front tooth 4 and the back tooth 5 is gradually approached from less than 4 mm, the blood flow of the tooth flesh 7 and the alveolar bone is changed. The good effect will slowly decrease. On the other hand, the distance D between the permanent magnets 12 and the neck lines L of the front teeth 4 and the rear teeth 5 is gradually separated from 4 mm toward the tooth root 9 to the part corresponding to the root of the tooth root 9 In the case of the range of, the effect of improving blood flow is approximately the same.

For the permanent magnet 12, for example, in addition to alnico magnets, ferromagnetic magnets, rare earth magnets, etc., flexible magnets such as rubber magnets, vinyl chloride magnets, and plastic magnets can be used. In addition, the permanent magnet 12 is set to a magnetic flux density that improves the blood flow of the tooth flesh 7 and the alveolar bone located in the interdental portion 9a, and promotes the movement of the upper jaw dentition portion 3. Specifically, for the permanent magnet 12 of the present embodiment, a magnet having a magnetic flux density of, for example, 100 to 300 millitesla is used.

In addition, in the present embodiment, although an example in which the permanent magnet 12 is integrally provided in the orthodontic appliance 10 corresponding to the tooth 7 of the interdental portion 9a has been described, it is not limited to this. , The permanent magnet 12 can also be installed and detached with respect to the orthodontic appliance 10.

Next, the function of the orthodontic tool 10 of this embodiment will be explained.

First, the mouthpiece 1 is inserted into the oral cavity 2 and installed so as to cover the upper jaw dentition 3. Next, the orthodontic appliance 10 embedded with the permanent magnet 12 is installed on the mouthguard 1 of the maxillary dentition part 3 to cover the crown parts 6 of the front teeth 4 and the posterior teeth 5 of the maxillary dentition part 3 Way to be covered.

In this way, the mouthguard 1 and the orthodontic appliance 10 are used as braces, respectively, and implemented by slowly moving each tooth toward the direction to be neatly arranged. Here, in the orthodontic appliance 10, since a permanent magnet 12 is embedded in a portion corresponding to the tooth 7 located in the intertooth portion 9a, the magnetic force of the permanent magnet 12 causes the tooth 7 and the tooth 7 located in the intertooth portion 9a to The intracellular metabolism of the subcutaneous tissue in the alveolar bone is promoted to improve blood flow, and as a result, the movement of the maxillary dentition 3 can be promoted.

In this way, according to this embodiment, the orthodontic appliance 10 is installed so as to cover the interdental portion 9a of the maxillary dentition portion 3, and the orthodontic appliance 10 is installed between the tooth root 9 and the tooth. The permanent magnet 12 is provided in the corresponding part of the meat 7, so the structure can be extremely simple, the blood flow in the tooth meat 7 and the alveolar bone located in the interdental part 9a can be improved, and the movement of the maxillary dentition part 3 can be promoted.

In addition, according to the present embodiment, the orthodontic appliance 10 is installed so as to cover the maxillary dentition 3 and can be covered on the mouthguard 1 for correcting the maxillary dentition 3, so in addition to the mouthguard 1 and In addition to correcting the maxillary dentition 3, the orthodontic tool 10 can further promote the movement of the maxillary dentition 3 by using the permanent magnet 12.

Furthermore, in the present embodiment, when the permanent magnet 12 is provided at a location corresponding to each of the plurality of inter-tooth portions 9a, it is to apply an equal magnetic force to each tooth 7 located in the plurality of inter-tooth portions 9a. The blood flow in the teeth 7 and the alveolar bone located in the interdental portion 9a is improved, and the movement of the maxillary dentition 3 can be further promoted.

In addition, in the present embodiment, when the permanent magnet 12 is detachably installed in the orthodontic appliance 10, permanent magnets with different magnetic flux densities can be replaced successively.

In addition, the orthodontic tool 10 of this embodiment is designed to cover the crown 6 of the front teeth 4 and the back teeth 5 of the upper jaw dentition 3 from the mouthguard 1 mounted on the upper jaw dentition 3 The example in which the method can be covered is described, but it is not limited to this. It is also possible to form the parts corresponding to the crown portions 6 of the front teeth 4 and the rear teeth 5 of the upper jaw dentition portion 3 in an open manner, and It is formed into a shape that covers at least the teeth 7 only.

In addition, the orthodontic tool 10 of the present embodiment can be applied from the mouthpiece 1 attached to the maxillary dentition 3 to cover the entire anterior teeth 4 and the posterior teeth 5 of the maxillary dentition 3 The coating is not limited to this, and it may be implemented by covering only the front teeth 4 of the maxillary dentition portion 3 or covering only the rear teeth 5. Furthermore, the orthodontic tool 10 can also be implemented in a manner of covering only a part of the front teeth 4 or only a part of the posterior teeth 5. In addition, in these cases, the teeth 7 must be covered by the teeth 8 provided with the permanent magnet 12.

Furthermore, the orthodontic appliance 10 of the present embodiment has been described in which the permanent magnet 12 is provided on the lingual side (inner side) and the buccal side (outer side), respectively. However, the permanent magnet 12 may be provided with It is carried out either on the tongue side or on the buccal side. [The first modification of the first embodiment of the invention] Next, a first modification of the first embodiment of the present invention will be described.

Fig. 4 is a perspective view showing a state in which the orthodontic device in the first modification of the first embodiment is attached to the maxillary dentition. In addition, in the first modification, the same or corresponding parts as in the first embodiment described above are designated by the same reference numerals, and the description is omitted.

As shown in FIG. 4, in the orthodontic tool 10 of the first modification, the permanent magnet 12A is formed in the shape of a long rectangular plate having a length spanning a plurality of root interdental portions 9a of the left and right rear teeth 5. In addition, although not shown, the permanent magnet 12A is also provided with lingual (inside) parts corresponding to the teeth 7 having the length of a plurality of interdental parts 9a spanning the left and right rear teeth 5, respectively. In this case, the permanent magnet 12A uses a magnet having flexibility such as the above-mentioned rubber magnet and is formed in a shape that follows the shape of the tooth 7.

In this way, according to this modification, since the permanent magnet 12A is provided with a portion spanning a plurality of inter-tooth root portions 9a, the number of permanent magnets 12 to be installed can be reduced, making it easier to manufacture.

In addition, according to this modification, since the permanent magnet 12A is formed in a plate shape along the shape of the tooth 7, the permanent magnet 12A can be closely attached to the tooth 7, so that the blood in the tooth 7 and the alveolar bone can be reduced. The flow is better and better, and the movement of the maxillary dentition 3 can be further promoted. [The second modification of the first embodiment of the invention] Next, a second modification of the first embodiment of the present invention will be described.

In the above-mentioned first embodiment, the orthodontic tool 10 is provided so that the crowns of the front teeth 4 and the back teeth 5 of the upper jaw dentition portion 3 can be covered from the mouthguard 1 attached to the upper jaw dentition portion 3 Part 6 is covered.

The orthodontic tool 10 of the second modification example is the same as the first embodiment, in which a permanent magnet 12 is provided at a portion corresponding to the tooth 7 in the intertooth root portion 9a, but the mouthpiece 1 is omitted. From above the mouthguard 1, it is installed in a manner that directly covers the crown 6 of the front teeth 4 and the back teeth 5 of the upper jaw dentition 3.

In this way, according to this modification, the orthodontic appliance 10 is installed and corrects the maxillary dentition 3 so as to directly cover the maxillary dentition 3. Therefore, although the mouthguard 1 is omitted and the number of parts is reduced, it is still The orthodontic tool 10 corrects the maxillary dentition 3 and can promote the movement of the maxillary dentition 3. [The second embodiment of the invention] Figures 5 and 6 show the second embodiment of the present invention.

Fig. 5 is a bottom view showing a state in which the orthodontic device in the second embodiment of the present invention is attached to the maxillary dentition. Figure 6 is a cross-sectional view along the VI-VI line in Figure 5.

In addition, in the present embodiment, parts that are the same as or corresponding to those of the first embodiment and its modification examples described above are denoted by the same reference numerals and described.

As shown in FIG. 5 and FIG. 6, the expansion base 20 as the orthodontic device includes left and right base portions 21, expansion screws 22 as expansion means, and guide portions 23. The left and right base parts 21 are respectively made of resin sheets such as acrylic resin and have predetermined flexibility. The left and right base portions 21 are formed into a shape suitable for the inside of the oral cavity 2, that is, the shape of the mouth lid.

The left and right base portions 21, as shown in Figs. 5 and 6, are respectively formed with outer edge portions 21a. Each outer edge portion 21a is locked to the left and right rear teeth 5 of the left and right upper jaw dentition portions 3. The inner side is formed in such a way as to follow the inner shape of the left and right rear teeth 5.

The left and right basal parts 21 are respectively embedded with permanent magnets in the parts corresponding to the plurality of inter-root parts 9a, and in the parts corresponding to the positions between the crown part 6 and the crown part 6 of the maxillary dentition part 3 12. In this embodiment, four permanent magnets 12 are provided on the left and right base parts 21 respectively. The permanent magnet 12, as shown in Fig. 5, is formed in the shape of a disc, and is arranged at a distance of 4 mm or more toward the tooth root 9 with respect to each neck line L of the posterior tooth 5 in the same manner as in the first embodiment described above. . In addition, the other structures and installation positions of the permanent magnet 12 are the same as those of the first embodiment and the modified example described above, so the description thereof will be omitted.

The expansion screw 22 is made of metal and is arranged between the left and right base parts 21. The enlargement screw 22 can be rotated by using a dedicated rotating tool, for example, to apply force to the respective outer edge portions 21a of the left and right base portions 21 to enlarge the positions of the left and right rear teeth 5. Guide parts 23 are respectively provided on both sides of the enlarged screw 22. These guide parts 23 are used to guide the left and right base parts 21 to expand while keeping the same plane when the expansion screw 22 is rotated. The left and right base portions 21 are formed substantially continuously in contact with each other before the expansion screw 22 is rotated.

Next, the function of the enlarged base 20 as the orthodontic device of the present embodiment will be described.

For installing the enlarged base 20 between the left and right rear teeth 5, the respective outer edge portions 21a of the left and right base portions 21 are inserted into the inner sides of the left and right rear teeth 5 near the necks of the teeth 5 to fix them on the left and right rear teeth. Between 5 teeth. Thereby, the left and right rear teeth 5 can be expanded laterally in a short period of time.

In this way, according to the enlarged base 20 of this embodiment, since the permanent magnet 12 is provided in the position corresponding to the tooth 7 of the interdental portion 9a of the upper mandibular dentition portion 3 of the pair of left and right base portions 21, each The permanent magnet 12 can improve the blood flow in the tooth flesh 7 and the alveolar bone 11 located at the interdental portion 9a, and can further shorten the correction period of the maxillary dentition 3.

In addition, according to the present embodiment, since the respective outer edge portions 21a of the pair of left and right base portions 21 are given a force to enlarge the position of the upper jaw dentition portion 3, and the permanent magnets 12 are provided inside each outer edge portion 21a, so The permanent magnet 12 can further promote the movement of the upper jaw dentition 3.

In addition, according to the present embodiment, the permanent magnets 12 are respectively provided at locations corresponding to the positions between the crown portion 6 and the crown portion 6 of the upper jaw dentition portion 3, so that the upper jaw dentition portion 3 can be corrected, and The movement of the upper jaw dentition 3 is promoted.

In addition, according to the present embodiment, the permanent magnet 12 is arranged at a distance of 4 mm or more from the tooth root 9 side with respect to the tooth neck line L of the upper jaw dentition portion 3. Therefore, the tooth flesh 7 and the tooth groove located in the tooth root portion 9a The blood flow in the bone 11 is remarkably improved, and the movement of the maxillary dentition 3 can be further promoted. [Other embodiments of the invention]

The various embodiments of the present invention have been described, but these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can also be implemented in various other forms, and various omissions, substitutions, changes, and combinations are possible within the scope not departing from the spirit of the invention. These embodiments are the same as included in the scope or spirit of the invention, and also include the invention described in the scope of the patent application and the equivalent scope thereof.

In each of the above-mentioned embodiments, the orthodontic appliance 10 and the enlarged base 20 have been described as an example in which the orthodontic appliance 10 and the enlarged base 20 are attached to the upper jaw dentition 3, but the present invention is not limited to this. It can also be applied to the case where the orthodontic appliance 10 and the enlarged base 20 are attached to the lower jaw dentition. Or when it is installed on both the upper jaw dentition part 3 and the lower jaw dentition part, it can be applied to at least one of the upper jaw dentition part 3 and the lower jaw dentition part.

In addition, in each of the above-mentioned embodiments, the material and shape of the orthodontic appliance 10 may be those that can be inserted into the oral cavity 2 and have the same function, and they may be composed of appropriate materials.

Furthermore, in the above-mentioned second embodiment, although the example of using the enlarged base 20 alone has been described, it is not limited to this, and the above-mentioned first embodiment and the above-mentioned second embodiment may be combined to form a structure. Way to implement. That is, as shown in Figures 1 and 2, from the mouthguard 1 mounted on the upper jaw dentition 3, the orthodontic appliance 10 is applied to cover the front teeth 4 and the posterior teeth 5 of the upper jaw dentition 3 In addition to the method of covering the crown portion 6, the area corresponding to the left and right posterior teeth 5 above it may be constructed so as to cover the enlarged base 20. With such a configuration, the correction period of the maxillary dentition 3 can be shortened, and the number of stages of use of the mouthguard 1 can be reduced. In addition, even if the modification of the first embodiment described above is combined with the second embodiment described above, substantially the same effect can be obtained.

In addition, in each of the above-mentioned embodiments and modifications, although the permanent magnet 12 is provided at the position corresponding to the tooth 7 located in the interdental portion 9a, it is not limited to this, and the permanent magnet 12 may be used as It is implemented in the form of providing a part corresponding to the tooth 7 located in the tooth root part 9, in short, it is only necessary to provide the permanent magnet 12 at least at a part corresponding to the tooth 7 located in the tooth root part 9a.

1: mouthguard 2: oral cavity 3: Upper jaw dentition 4: Front teeth 5: posterior teeth 6: Tooth crown 7: Tooth 8: Tooth 9: Tooth root 9a: Interdental part 10: Orthodontic appliance (correction device body) 11: Alveolar bone 12: Permanent magnet 12A: Permanent magnet 20: Enlarge the base (orthodontic device) 21: base part 21a: Outer edge 22: Expansion screw (expansion means) 23: Guidance Department (expansion means)

[Figure 1] is a bottom view showing a state in which the orthodontic device in the first embodiment of the present invention is attached to the maxillary dentition. [Figure 2] is a perspective view showing a state where the orthodontic device in the first embodiment is attached to the upper jaw dentition. [Figure 3] is a cross-sectional view along the line III-III of Figure 1. [Figure 4] is a perspective view showing a state where the orthodontic device in the first modification of the first embodiment is attached to the maxillary dentition. [Fig. 5] is a bottom view showing the state where the orthodontic device in the second embodiment is attached to the maxillary dentition. [Figure 6] is a cross-sectional view along the VI-VI line in Figure 4.

2: oral cavity

3: Upper jaw dentition

4: Front teeth

5: posterior teeth

6: Tooth crown

12: Permanent magnet

20: Enlarge the base (orthodontic device)

21: base part

21a: Outer edge

22: Expansion screw (expansion means)

23: Guidance Department (expansion means)

Claims (12)

An orthodontic device, which is characterized by: The orthodontic device body is mounted so as to cover at least the tooth flesh located in the interdental portion of the dentition portion, and the orthodontic device body is provided with a permanent magnet at a portion corresponding to the tooth flesh located at least in the inter-root portion of the tooth. Such as the orthodontic device of claim 1, in which, The orthodontic device main body is attached so as to cover the dentition part and is configured to be able to cover the mouthguard for correcting the dentition part. Such as the orthodontic device of claim 1, in which, The above-mentioned orthodontic device body is installed so as to cover the above-mentioned dentition part and corrects the above-mentioned dentition part. The orthodontic device according to any one of claims 1 to 3, wherein: The permanent magnet is provided at a location corresponding to each of the plurality of tooth roots. The orthodontic device according to any one of claims 1 to 3, wherein: The above-mentioned permanent magnet is provided in a portion spanning a plurality of the above-mentioned tooth roots. The orthodontic device according to any one of claims 1 to 3, wherein: The permanent magnet is formed in a plate shape along the shape of the tooth. The orthodontic device according to any one of claims 1 to 3, wherein: The permanent magnet is detachably installed in the correcting device body. The orthodontic device according to any one of claims 1 to 3, wherein: The permanent magnet is arranged at a distance of 4 mm or more toward the tooth root with respect to the neck line of the tooth row. An orthodontic device, which is characterized by having: A pair of left and right bases locked on the inner side of the dentition, and An expansion means arranged between the left and right pair of base parts to expand the space between the left and right base parts toward the outside; A permanent magnet is provided in a portion corresponding to the tooth flesh of the inter-tooth root portion of the tooth row portion located in the pair of left and right base portions. Such as the orthodontic device of claim 9, wherein A force is applied to the respective outer edge portions of the pair of left and right base portions to enlarge the position of the tooth row portion, and the permanent magnet is provided on the inner side of each outer edge portion. The orthodontic device according to claim 9 or 10, wherein: The permanent magnets are respectively provided at locations corresponding to the positions between the crown portion and the crown portion of the tooth row portion. The orthodontic device according to claim 9 or 10, wherein: The permanent magnet is arranged at a distance of 4 mm or more toward the tooth root with respect to the neck line of the tooth row.

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