JP2021194528A - Orthodontic appliance - Google Patents

Orthodontic appliance Download PDF

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JP2021194528A
JP2021194528A JP2021072314A JP2021072314A JP2021194528A JP 2021194528 A JP2021194528 A JP 2021194528A JP 2021072314 A JP2021072314 A JP 2021072314A JP 2021072314 A JP2021072314 A JP 2021072314A JP 2021194528 A JP2021194528 A JP 2021194528A
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dentition
permanent magnet
gingiva
pair
orthodontic appliance
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JP6980326B1 (en
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勝 石亀
Masaru Ishigame
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SheepMedical Co Ltd
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SheepMedical Co Ltd
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Priority claimed from JP2020099933A external-priority patent/JP6945111B1/en
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Priority to JP2021072314A priority Critical patent/JP6980326B1/en
Priority to PCT/JP2021/018670 priority patent/WO2021251068A1/en
Priority to TW110120368A priority patent/TWI750097B/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/08—Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/10—Devices having means to apply outwardly directed force, e.g. expanders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N2/00—Magnetotherapy
    • A61N2/06—Magnetotherapy using magnetic fields produced by permanent magnets

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

To provide an orthodontic apparatus having an extremely simplified structure, capable of promoting movement of a dentition part.SOLUTION: An enlarged floor 20 as an orthodontic appliance includes a pair of right-and-left floor parts 21 locked to the inside of an upper jaw dentition part 3, and enlarging means 22, 23 provided between the pair of right-and-left floor parts 21, for enlarging the interval between the pair of right-and-left floor parts 21 to the outside. A permanent magnet 12 is provided on a site corresponding to gum positioned on an inter-root area of the upper jaw dentition part 3 of the pair of right-and-left floor parts 21.SELECTED DRAWING: Figure 5

Description

本発明は、歯列部を矯正するとき、その歯列部の移動を促進する歯列矯正装置に関する。 The present invention relates to an orthodontic apparatus that promotes the movement of an orthodontic portion when the orthodontic portion is corrected.

従来、歯列部を矯正するとき、その歯列部の移動を促進するシステムには、例えば特許文献１に記載されたものがある。このシステムは、制御回路及び電源に応答して、第１タイプの電流が、複数の舌側電極の各々と複数の頬側電極のうちの特定の１つとの間に生成され、又は第２タイプの電流が、複数の舌側電極の隣接するものの各々の間及び複数の頬側電極の隣接するものの間に生成され、各電流は、制御回路に応答して別個に制御されるように構成されている。 Conventionally, there is a system described in Patent Document 1, for example, as a system for promoting the movement of the dentition portion when the dentition portion is corrected. In this system, in response to a control circuit and power supply, a first type of current is generated between each of the lingual electrodes and a specific one of the buccal electrodes, or the second type. Currents are generated between each of the adjacent lingual electrodes and between the adjacent buccal electrodes, and each current is configured to be controlled separately in response to a control circuit. ing.

特表２０１７−５０８５２１号公報Japanese Patent Publication No. 2017-508521

しかしながら、上述した特許文献１に記載された従来のシステムでは、制御回路、電源、複数の舌側電極、及び複数の頬側電極が設けられていることから、構造が複雑化するとともに、制御も複雑になるという問題がある。 However, in the conventional system described in Patent Document 1 described above, since the control circuit, the power supply, the plurality of lingual electrodes, and the plurality of buccal electrodes are provided, the structure is complicated and the control is also performed. There is the problem of complexity.

本発明はこのような問題に鑑みてなされたものであり、構造を極めて簡素化し、歯列部の移動を促進することが可能な歯列矯正装置を提供することを課題としている。 The present invention has been made in view of such a problem, and an object of the present invention is to provide an orthodontic appliance capable of extremely simplifying the structure and promoting the movement of the dentition portion.

かかる課題を達成するために、請求項１に記載の発明は、歯列部の内側に係止される左右一対の床部と、前記左右一対の床部の間に設けられ、前記左右一対の床部の間を外側に広げる拡大手段と、を備え、前記左右一対の床部の前記歯列部の歯根間部に位置する歯肉に対応する部位に永久磁石が設けられていることを特徴とする。 In order to achieve such a problem, the invention according to claim 1 is provided between the pair of left and right floor portions locked inside the dentition portion and the pair of left and right floor portions, and the pair of left and right floor portions are provided. It is provided with an expanding means for expanding the space between the floors to the outside, and is characterized in that a permanent magnet is provided at a portion corresponding to the gingiva located between the roots of the dentition of the pair of left and right floors. do.

また、請求項２に記載の発明は、請求項１に記載の構成に加え、前記左右一対の床部のそれぞれの外縁部が前記歯列部の位置を拡大するような力を付与し、前記各外縁部の内側に前記永久磁石が設けられていることを特徴とする。 Further, in the invention according to claim 2, in addition to the configuration according to claim 1, the outer edge portions of the pair of left and right floor portions are provided with a force for expanding the position of the dentition portion. The permanent magnet is provided inside each outer edge portion.

また、請求項３に記載の発明は、請求項１又は２に記載の構成に加え、前記永久磁石は、前記歯列部の歯冠部と歯冠部との間の位置に対応する部位にそれぞれ設けられていることを特徴とする。 Further, in the invention according to claim 3, in addition to the configuration according to claim 1, the permanent magnet is attached to a portion corresponding to the position between the crown portion and the crown portion of the dentition portion. The feature is that each is provided.

また、請求項４に記載の発明は、請求項１乃至３のいずれか一項に記載の構成に加え、前記歯列部の歯頚ラインに対して歯根部側に４ｍｍ以上離間して配置されていることを特徴とする。 Further, the invention according to claim 4 is arranged at a distance of 4 mm or more from the cervical line of the dentition portion to the root portion side in addition to the configuration according to any one of claims 1 to 3. It is characterized by being.

請求項１に記載の発明によれば、左右一対の床部における歯列部の歯根間部に位置する歯肉に対応する部位に永久磁石が設けられているので、それぞれの永久磁石で歯根間部に位置する歯肉及び歯槽骨内の血行を良くし、歯列部の矯正期間を一段と短縮化することが可能となる。 According to the invention according to claim 1, since a permanent magnet is provided at a portion corresponding to the gingiva located in the inter-gingival portion of the dentition portion in the pair of left and right floor portions, the inter-root portion is provided with each permanent magnet. It is possible to improve blood circulation in the gingiva and alveolar bone located in the gingiva and further shorten the correction period of the dentition.

また、請求項２に記載の発明によれば、前記左右一対の床部のそれぞれの外縁部が歯列部の位置を拡大するような力を付与し、各外縁部の内側に永久磁石が設けられているので、歯列部の移動を永久磁石で一段と促進することが可能となる。 Further, according to the second aspect of the present invention, each outer edge portion of the pair of left and right floor portions applies a force to expand the position of the dentition portion, and a permanent magnet is provided inside each outer edge portion. Therefore, it is possible to further promote the movement of the dentition with a permanent magnet.

また、請求項３に記載の発明によれば、永久磁石は、歯列部の歯冠部と歯冠部との間の位置に対応する部位にそれぞれ設けられているので、歯列部を矯正するとともに、歯列部の移動を促進することが可能となる。 Further, according to the invention of claim 3, since the permanent magnets are provided at the portions corresponding to the positions between the crown portion and the crown portion of the dentition portion, the dentition portion is corrected. At the same time, it becomes possible to promote the movement of the dentition portion.

また、請求項４に記載の発明によれば、永久磁石は、歯列部の歯頚ラインに対して歯根部側に４ｍｍ以上離間して配置されているので、歯根間部に位置する歯肉及び歯槽骨内の血行が著しく良好となり、歯列部の移動を一段と促進することが可能となる。 Further, according to the invention of claim 4, since the permanent magnet is arranged at a distance of 4 mm or more on the root portion side with respect to the cervical line of the dentition portion, the gingiva located in the inter-root portion and the gingiva The blood circulation in the alveolar bone is remarkably improved, and the movement of the dentition can be further promoted.

本発明の第１実施形態に係る歯列矯正装置を上顎歯列部に装着した状態を示す下面図である。It is a bottom view which shows the state which the orthodontic appliance which concerns on 1st Embodiment of this invention is attached to the maxillary dentition part. 第１実施形態に係る歯列矯正装置を上顎歯列部に装着した状態を示す斜視図である。It is a perspective view which shows the state which the orthodontic appliance which concerns on 1st Embodiment is attached to the maxillary dentition part. 図１のＩＩＩ−ＩＩＩ線に沿う断面図である。FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 第１実施形態の第１変形例に係る歯列矯正装置を上顎歯列部に装着した状態を示す斜視図である。It is a perspective view which shows the state which the orthodontic appliance which concerns on 1st modification of 1st Embodiment is attached to the maxillary dentition part. 本発明の第２実施形態に係る歯列矯正装置を上顎歯列部に装着した状態を示す下面図である。It is a bottom view which shows the state which the orthodontic appliance which concerns on 2nd Embodiment of this invention is attached to the maxillary dentition part. 図４のＶＩ−ＶＩ線に沿う断面図である。It is sectional drawing which follows the VI-VI line of FIG.

以下、本発明の実施形態について説明する。
［発明の第１実施形態］
図１乃至図３は、本発明の第１実施形態を示す。 Hereinafter, embodiments of the present invention will be described.
[First Embodiment of the invention]
1 to 3 show a first embodiment of the present invention.

図１は、本発明の第１実施形態に係る歯列矯正装置を上顎歯列部に装着した状態を示す下面図である。図２は、第１実施形態に係る歯列矯正装置を上顎歯列部に装着した状態を示す斜視図である。図３は、図１のＩＩＩ−ＩＩＩ線に沿う断面図である。 FIG. 1 is a bottom view showing a state in which the orthodontic appliance according to the first embodiment of the present invention is attached to the maxillary dentition portion. FIG. 2 is a perspective view showing a state in which the orthodontic appliance according to the first embodiment is attached to the maxillary dentition portion. FIG. 3 is a cross-sectional view taken along the line III-III of FIG.

なお、以下の各実施形態では、矯正装置本体を口腔内に挿入し、上顎歯列部に装着した例について説明する。また、以下の各実施形態では、矯正装置本体を上顎歯列部に装着に装着した状態で、その前歯側を前側、奥歯側を後側とし、舌側を内側、頬側を外側として説明する。ここで、前歯は、切歯であって、左右の中切歯、左右の側切歯、及び左右の犬歯を備える。奥歯は、臼歯であって、左右の第１、第２小臼歯、左右の第１〜第３大臼歯を備える。 In each of the following embodiments, an example in which the main body of the orthodontic appliance is inserted into the oral cavity and attached to the maxillary dentition portion will be described. Further, in each of the following embodiments, with the orthodontic appliance main body attached to the maxillary dentition, the anterior tooth side is the anterior side, the posterior tooth side is the posterior side, the lingual side is the inner side, and the buccal side is the outer side. .. Here, the anterior teeth are incisors and include left and right central incisors, left and right lateral incisors, and left and right canines. The back teeth are molars and include left and right first and second premolars and left and right first and third molars.

図１及び図２に示すように、本実施形態は、マウスピース１に矯正装置本体としての歯列矯正具１０が被着可能に設けられている。マウスピース１は、口腔２内に挿入され、上顎歯列部３を覆うように装着されている。マウスピース１は、上顎歯列部３に装着されて上顎歯列部３を横方向に拡げるとともに、上顎歯列部３の個々の歯を整列すべき方向に移動させる形状に成型した成型物（アライナー）である。 As shown in FIGS. 1 and 2, in the present embodiment, the orthodontic appliance 10 as the main body of the orthodontic appliance is provided on the mouthpiece 1 so as to be adhereable. The mouthpiece 1 is inserted into the oral cavity 2 and is attached so as to cover the maxillary dentition portion 3. The mouthpiece 1 is a molded product that is attached to the maxillary dentition 3 to expand the maxillary dentition 3 in the lateral direction and to move the individual teeth of the maxillary dentition 3 in the direction in which they should be aligned. Aligner).

マウスピース１は、透明なプラスチック製であり、上顎歯列部３の全ての歯、すなわち上顎歯列部３の前歯４及び奥歯５の歯冠部６を覆って所定の形状を保持する硬度を有している。マウスピース１は、例えば複数異なる大きさのもの、あるいは異なる硬さのものを段階的に用意して、それらを定期的に交換することにより矯正治療を進めていくものである。 The mouthpiece 1 is made of transparent plastic and has a hardness that covers all the teeth of the maxillary dentition 3, that is, the anterior teeth 4 of the maxillary dentition 3 and the crown 6 of the back teeth 5 to maintain a predetermined shape. Have. For the mouthpiece 1, for example, a plurality of mouthpieces having different sizes or different hardnesses are prepared in stages, and the mouthpieces 1 are replaced regularly to advance the orthodontic treatment.

歯列矯正具１０は、上顎歯列部３に装着されたマウスピース１の上から上顎歯列部３の前歯４及び奥歯５の歯冠部６を覆うように被着可能に設けられている。歯列矯正具１０は、全体が弾性を有する樹脂材料で例えば１ｍｍの厚さに一体成形されている。具体的に、上記樹脂材料は、例えばポリウレタン等のウレタン樹脂、シリコン樹脂、ポリオレフィン系樹脂、スチレン系樹脂及びアクリル樹脂等から選択して使用される。上記樹脂材料は、無色透明又は乳白色であることが望ましく、これにより口腔２内に挿入した場合、上顎歯列部３に装着していることが目立たず、審美性に優れたものとなる。 The orthodontic tool 10 is provided so as to be adhereable so as to cover the anterior teeth 4 of the maxillary dentition 3 and the crown 6 of the back teeth 5 from above the mouthpiece 1 attached to the maxillary dentition 3. .. The orthodontic appliance 10 is made of a resin material having elasticity as a whole and is integrally molded to a thickness of, for example, 1 mm. Specifically, the resin material is selected from, for example, urethane resin such as polyurethane, silicon resin, polyolefin resin, styrene resin, acrylic resin and the like. It is desirable that the resin material is colorless and transparent or milky white, so that when it is inserted into the oral cavity 2, it is inconspicuous that it is attached to the maxillary dentition portion 3, and it is excellent in aesthetics.

歯列矯正具１０は、マウスピース１と同様に上顎歯列部３の個々の歯を整列すべき方向に徐々に移動させる形状に成型した成型物（アライナー）である。歯列矯正具１０は、口腔２内の上顎歯列部３の全ての歯、すなわち上顎歯列部３の前歯４及び奥歯５を覆って所定の形状を保持する硬度を有している。歯列矯正具１０は、上顎歯列部３の歯列弓（アーチ）に沿った形状に形成されて前歯４及び奥歯５の咬合部としての歯冠部６を覆うとともに、歯肉７側に位置する歯肉部８まで延びている。すなわち、歯列矯正具１０は、図３に示すように上顎歯列部３の歯根部９及び歯根間部９ａに位置する歯肉７を覆うように装着されている。ここで、歯根間部９ａとは、前歯４又は奥歯５の歯根部９と歯根部９との間の部分のことである。 The orthodontic appliance 10 is a molded product (aligner) molded into a shape that gradually moves the individual teeth of the maxillary dentition portion 3 in the direction in which they should be aligned, similarly to the mouthpiece 1. The orthodontic appliance 10 has a hardness that covers all the teeth of the maxillary dentition portion 3 in the oral cavity 2, that is, the anterior teeth 4 and the back teeth 5 of the maxillary dentition portion 3 and maintains a predetermined shape. The orthodontic tool 10 is formed in a shape along the dentition arch of the maxillary dentition portion 3 to cover the crown portion 6 as the occlusal portion of the anterior teeth 4 and the back teeth 5, and is located on the gingival 7 side. It extends to the gingival part 8 to be used. That is, as shown in FIG. 3, the orthodontic appliance 10 is attached so as to cover the gingiva 7 located at the root portion 9 and the inter-root portion 9a of the maxillary dentition portion 3. Here, the inter-root portion 9a is a portion between the root portion 9 and the root portion 9 of the front tooth 4 or the back tooth 5.

歯列矯正具１０は、歯根間部９ａに位置する歯肉７に対応する部位に永久磁石１２が埋設されている。本実施形態では、永久磁石１２が舌側（内側）に１０個設けられ、これらの永久磁石１２のそれぞれと対向する頬側（外側）に１０個設けられている。具体的には、永久磁石１２は、図１に示すように左右の前歯４にそれぞれ６個設けられ、左右の奥歯５にそれぞれ４個設けられている。この場合、永久磁石１２は、左右の前歯４及び奥歯５の全ての歯根間部９ａに位置する歯肉７にそれぞれに対応する舌側（内側）及び頬側（外側）の部位に設けるようにしてもよい。 In the orthodontic appliance 10, a permanent magnet 12 is embedded in a portion corresponding to the gingiva 7 located in the inter-root portion 9a. In the present embodiment, 10 permanent magnets 12 are provided on the lingual side (inside), and 10 are provided on the buccal side (outside) facing each of these permanent magnets 12. Specifically, as shown in FIG. 1, six permanent magnets 12 are provided on each of the left and right front teeth 4, and four are provided on each of the left and right molars 5. In this case, the permanent magnets 12 are provided on the lingual side (inner side) and buccal side (outer side) corresponding to the gingiva 7 located in all the root interstitial portions 9a of the left and right anterior teeth 4 and the back teeth 5. May be good.

永久磁石１２は、図２に示すように円板状に形成されている。この場合、永久磁石１２は、円板状に限らず、半円状、楕円状、又は多角形板状に形成されたものでもよい。 The permanent magnet 12 is formed in a disk shape as shown in FIG. In this case, the permanent magnet 12 is not limited to a disk shape, but may be formed in a semicircular shape, an elliptical shape, or a polygonal plate shape.

永久磁石１２は、図２に示すように前歯４及び奥歯５の各歯頚ラインＬに対する間隔Ｄが４ｍｍ以上歯根部９側に離間して配置されている。因みに、永久磁石１２を前歯４及び奥歯５の各歯頚ラインＬに対する間隔Ｄを４ｍｍ未満から徐々に接近させた場合には、歯肉７及び歯槽骨の血行を良くする効果が徐々に低下することとなる。一方、永久磁石１２を前歯４及び奥歯５の各歯頚ラインＬに対する間隔Ｄが歯根部９側に４ｍｍから徐々に離間して歯根部９の根元に対応する部分に至る範囲に配置した場合には、血行を良くする効果が略同様に得られる。 As shown in FIG. 2, the permanent magnets 12 are arranged so that the distance D between the front teeth 4 and the back teeth 5 with respect to each cervical line L is 4 mm or more and separated from each other on the root portion 9 side. Incidentally, when the permanent magnet 12 is gradually brought closer to the cervical line L of the anterior teeth 4 and the back teeth 5 from less than 4 mm, the effect of improving the blood circulation of the gingiva 7 and the alveolar bone gradually decreases. Will be. On the other hand, when the permanent magnet 12 is arranged in a range where the distance D of the front teeth 4 and the back teeth 5 with respect to each cervical line L is gradually separated from 4 mm on the root portion 9 side and reaches the portion corresponding to the root of the root portion 9. Has almost the same effect of improving blood circulation.

永久磁石１２には、例えばアルニコ磁石、フェライト磁石、希土類磁石等の他、ゴム磁石、塩化ビニル磁石、プラスチック磁石等の柔軟性を有する磁石が用いられる。また、永久磁石１２は、歯根間部９ａに位置する歯肉７及び歯槽骨の血行を良くして、上顎歯列部３の移動を促進する磁束密度に設定される。具体的に、本実施形態の永久磁石１２は、その磁束密度が例えば１００〜３００ミリテスラの磁石が用いられる。 As the permanent magnet 12, for example, in addition to an alnico magnet, a ferrite magnet, a rare earth magnet, and the like, a flexible magnet such as a rubber magnet, a vinyl chloride magnet, and a plastic magnet is used. Further, the permanent magnet 12 is set to a magnetic flux density that improves the blood circulation of the gingiva 7 and the alveolar bone located in the inter-root portion 9a and promotes the movement of the maxillary dentition portion 3. Specifically, as the permanent magnet 12 of the present embodiment, a magnet having a magnetic flux density of, for example, 100 to 300 millitesla is used.

なお、本実施形態では、歯列矯正具１０における歯根間部９ａに位置する歯肉７に対応する部位に永久磁石１２を一体に設けた例について説明したが、これに限らず永久磁石１２を歯列矯正具１０に対して着脱可能に設けるようにしてもよい。 In the present embodiment, an example in which the permanent magnet 12 is integrally provided at the portion of the orthodontic appliance 10 corresponding to the gingiva 7 located at the inter-root portion 9a has been described, but the present invention is not limited to this, and the permanent magnet 12 is used as a tooth. It may be provided detachably with respect to the row straightener 10.

次に、本実施形態の歯列矯正具１０の作用を説明する。 Next, the operation of the orthodontic appliance 10 of the present embodiment will be described.

まず、マウスピース１が口腔２内に挿入され、上顎歯列部３を覆うように装着される。次いで、永久磁石１２が埋設された歯列矯正具１０が上顎歯列部３に装着されたマウスピース１の上から上顎歯列部３の前歯４及び奥歯５の歯冠部６を覆うように被着される。 First, the mouthpiece 1 is inserted into the oral cavity 2 and attached so as to cover the maxillary dentition portion 3. Next, the orthodontic tool 10 in which the permanent magnet 12 is embedded covers the anterior teeth 4 of the maxillary dentition 3 and the crown 6 of the back teeth 5 from above the mouthpiece 1 attached to the maxillary dentition 3. Be adhered.

このようにしてマウスピース１及び歯列矯正具１０は、それぞれアライナーとして使用され、個々の歯を整列すべき方向に徐々に移動させるようにしている。ここで、歯列矯正具１０には、歯根間部９ａに位置する歯肉７に対応する部位に永久磁石１２が埋設されていることから、永久磁石１２の磁力によって歯根間部９ａに位置する歯肉７及び歯槽骨内の皮下組織の細胞内において新陳代謝が促進されて血行が良くなり、その結果、上顎歯列部３の移動を促進することが可能となる。 In this way, the mouthpiece 1 and the orthodontic appliance 10 are used as aligners, respectively, so as to gradually move the individual teeth in the direction in which they should be aligned. Here, since the permanent magnet 12 is embedded in the orthodontic tool 10 in the portion corresponding to the gingiva 7 located in the inter-root portion 9a, the gingiva located in the inter-root portion 9a due to the magnetic force of the permanent magnet 12. 7 and the cells of the subcutaneous tissue in the alveolar bone promote metabolism and improve blood circulation, and as a result, it becomes possible to promote the movement of the maxillary dentition portion 3.

このように本実施形態によれば、上顎歯列部３の歯根間部９ａに位置する歯肉７を覆うように歯列矯正具１０が装着され、この歯列矯正具１０は、歯根部９に位置する歯肉７に対応する部位に永久磁石１２が設けられているので、構造を極めて簡素化し、歯根間部９ａに位置する歯肉７及び歯槽骨内の血行を良くして、上顎歯列部３の移動を促進することが可能となる。 As described above, according to the present embodiment, the orthodontic tool 10 is attached so as to cover the gingiva 7 located in the inter-root portion 9a of the maxillary dentition portion 3, and the orthodontic tool 10 is attached to the root portion 9. Since the permanent magnet 12 is provided at the portion corresponding to the located gingiva 7, the structure is extremely simplified, the gingiva 7 located at the inter-root portion 9a and the blood circulation in the alveolar bone are improved, and the maxillary dentition portion 3 is provided. It becomes possible to promote the movement of the tooth.

また、本実施形態によれば、歯列矯正具１０は、上顎歯列部３を覆うように装着されて上顎歯列部３を矯正するマウスピース１に被着可能としたので、マウスピース１及び歯列矯正具１０で上顎歯列部３を矯正する一方、上顎歯列部３の移動を永久磁石１２で一段と促進することが可能となる。 Further, according to the present embodiment, the orthodontic appliance 10 is attached so as to cover the maxillary dentition portion 3 and can be attached to the mouthpiece 1 for correcting the maxillary dentate portion 3, so that the mouthpiece 1 can be attached. And while the orthodontic appliance 10 corrects the maxillary dentate portion 3, the permanent magnet 12 can further promote the movement of the maxillary dentate portion 3.

また、本実施形態において、永久磁石１２が複数の歯根間部９ａのそれぞれに対応する部位に設けられた場合には、複数の歯根間部９ａに位置するそれぞれの歯肉７に均等な磁力がかかることとなり、歯根間部９ａに位置するそれぞれの歯肉７及び歯槽骨内の血行を良くして、上顎歯列部３の移動を一段と促進することが可能となる。 Further, in the present embodiment, when the permanent magnet 12 is provided at a portion corresponding to each of the plurality of inter-root portions 9a, an equal magnetic force is applied to each gingiva 7 located in the plurality of inter-root portions 9a. Therefore, it is possible to improve the blood circulation in each of the gingiva 7 and the alveolar bone located in the inter-root portion 9a, and further promote the movement of the maxillary dentition portion 3.

また、本実施形態において、永久磁石１２を歯列矯正具１０に着脱自在に設けた場合には、磁束密度の異なる永久磁石と逐次交換することが可能となる。 Further, in the present embodiment, when the permanent magnet 12 is detachably provided on the orthodontic appliance 10, it can be sequentially replaced with permanent magnets having different magnetic flux densities.

なお、本実施形態の歯列矯正具１０は、上顎歯列部３に装着されたマウスピース１の上から上顎歯列部３の前歯４及び奥歯５の歯冠部６を覆うように被着可能に設けた例について説明したが、これに限らず上顎歯列部３の前歯４及び奥歯５の歯冠部６に対応する部位を開口するように形成して、少なくとも歯肉７だけを覆うような形状に形成してもよい。 The orthodontic tool 10 of the present embodiment is attached so as to cover the anterior teeth 4 of the maxillary dentition 3 and the crown 6 of the back teeth 5 from above the mouthpiece 1 attached to the maxillary dentition 3. The example provided as possible has been described, but the present invention is not limited to this, and the portion corresponding to the crown portion 6 of the anterior tooth 4 and the back tooth 5 of the maxillary dentition portion 3 is formed so as to open so as to cover at least the gingiva 7. It may be formed into a different shape.

また、本実施形態の歯列矯正具１０は、上顎歯列部３に装着されたマウスピース１の上から上顎歯列部３の前歯４及び奥歯５の全体を覆うように被着可能としたが、これに限らず上顎歯列部３の前歯４だけ、あるいは奥歯５だけを覆うようにしてもよい。さらに、歯列矯正具１０は、前歯４の一部だけ、あるいは奥歯５の一部だけを覆うようにしてもよい。なお、これらの場合にも、永久磁石１２を設けた歯肉部８によって歯肉７が覆われていることが必要である。 Further, the orthodontic tool 10 of the present embodiment can be attached so as to cover the entire front teeth 4 and back teeth 5 of the maxillary dentition portion 3 from above the mouthpiece 1 attached to the maxillary dentition portion 3. However, the present invention is not limited to this, and only the anterior teeth 4 or the back teeth 5 of the maxillary dentition portion 3 may be covered. Further, the orthodontic appliance 10 may cover only a part of the front teeth 4 or a part of the back teeth 5. Also in these cases, it is necessary that the gingiva 7 is covered with the gingival portion 8 provided with the permanent magnet 12.

さらに、本実施形態の歯列矯正具１０は、永久磁石１２を舌側（内側）と、頬側（外側）にそれぞれ設けた例について説明したが、永久磁石１２を舌側又は頬側のいずれか一方に設けるようにしてもよい。
［発明の第１実施形態の第１変形例］
次に、本発明の第１実施形態の第１変形例について説明する。 Further, the orthodontic appliance 10 of the present embodiment has described an example in which the permanent magnet 12 is provided on the lingual side (inside) and the buccal side (outside), respectively, but the permanent magnet 12 is provided on either the lingual side or the buccal side. It may be provided on one side.
[First Modified Example of First Embodiment of the Invention]
Next, a first modification of the first embodiment of the present invention will be described.

図４は、第１実施形態の第１変形例に係る歯列矯正装置を上顎歯列部に装着した状態を示す斜視図である。なお、第１変形例では、前記第１実施形態と同一又は対応する部分に同一の符号を付して説明を省略する。 FIG. 4 is a perspective view showing a state in which the orthodontic appliance according to the first modification of the first embodiment is attached to the maxillary dentition portion. In the first modification, the same or corresponding portions as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

図４に示すように、第１変形例の歯列矯正具１０は、永久磁石１２Ａが左右の奥歯５の複数の歯根間部９ａに跨った長さを有する長尺矩形板状に形成されている。また、図示していないが、永久磁石１２Ａは、左右の奥歯５の複数の歯根間部９ａに跨った長さを有する歯肉７にそれぞれに対応する舌側（内側）の部位にも設けられている。この場合、永久磁石１２Ａは、上記ゴム磁石等の柔軟性を有する磁石が用いられ、歯肉７の形状に沿った形状に形成されている。 As shown in FIG. 4, the orthodontic appliance 10 of the first modification is formed in the shape of a long rectangular plate having a length of a permanent magnet 12A straddling a plurality of root interstitial portions 9a of the left and right molars 5. There is. Further, although not shown, the permanent magnet 12A is also provided on the lingual side (inner side) portion corresponding to each of the gingiva 7 having a length straddling the plurality of root interstitial portions 9a of the left and right molars 5. There is. In this case, the permanent magnet 12A uses a flexible magnet such as the rubber magnet, and is formed in a shape that follows the shape of the gingiva 7.

このように本変形例によれば、永久磁石１２Ａが複数の歯根間部９ａに跨った部位に設けられているので、永久磁石１２の取付数を削減することができ、製造し易くなる。 As described above, according to this modification, since the permanent magnet 12A is provided at the portion straddling the plurality of root interstitial portions 9a, the number of permanent magnets 12 attached can be reduced and the manufacturing becomes easier.

また、本変形例によれば、永久磁石１２Ａは、歯肉７の形状に沿った板状に形成されているので、永久磁石１２Ａが歯肉７に密着することから、歯肉７及び歯槽骨内の血行を一層良好とし、上顎歯列部３の移動を一段と促進することが可能となる。
［発明の第１実施形態の第２変形例］
次に、本発明の第１実施形態の第２変形例について説明する。 Further, according to this modification, since the permanent magnet 12A is formed in a plate shape along the shape of the gingiva 7, the permanent magnet 12A is in close contact with the gingiva 7, and thus blood circulation in the gingiva 7 and the alveolar bone. It becomes possible to further improve the movement of the maxillary dentition portion 3 and further promote the movement of the maxillary dentition portion 3.
[Second modification of the first embodiment of the invention]
Next, a second modification of the first embodiment of the present invention will be described.

前記第１実施形態では、歯列矯正具１０が上顎歯列部３に装着されたマウスピース１の上から上顎歯列部３の前歯４及び奥歯５の歯冠部６を覆うように被着可能に設けられている。 In the first embodiment, the orthodontic tool 10 is attached so as to cover the anterior teeth 4 of the maxillary dentition 3 and the crown 6 of the back teeth 5 from above the mouthpiece 1 attached to the maxillary dentition 3. It is provided as possible.

第２変形例の歯列矯正具１０は、前記第１実施形態と同様に、歯根間部９ａに位置する歯肉７に対応する部位に永久磁石１２が設けられているものの、マウスピース１を省略し、マウスピース１の上からではなく、上顎歯列部３の前歯４及び奥歯５の歯冠部６を直接覆うように装着される。 The orthodontic appliance 10 of the second modification is provided with the permanent magnet 12 at the portion corresponding to the gingiva 7 located in the inter-root portion 9a, as in the first embodiment, but the mouthpiece 1 is omitted. However, it is attached so as to directly cover the crown portion 6 of the anterior teeth 4 and the back teeth 5 of the maxillary dentition portion 3 not from above the mouthpiece 1.

このように本変形例によれば、歯列矯正具１０は、上顎歯列部３を直接覆うように装着されて上顎歯列部３を矯正するので、マウスピース１を省略して部品点数を削減したにも関わらず、歯列矯正具１０で上顎歯列部３を矯正するとともに、上顎歯列部３の移動を促進することが可能となる。
［発明の第２実施形態］
図５及び図６は、本発明の第２実施形態を示す。 As described above, according to this modification, the orthodontic appliance 10 is mounted so as to directly cover the dentition portion 3 of the humerus and corrects the dentition portion 3 of the maxillary dentition. Therefore, the number of parts is reduced by omitting the mouthpiece 1. Despite the reduction, it is possible to correct the maxillary dentition portion 3 with the orthodontic appliance 10 and promote the movement of the maxillary dentition portion 3.
[Second Embodiment of the invention]
5 and 6 show a second embodiment of the present invention.

図５は、本発明の第２実施形態に係る歯列矯正装置を上顎歯列部に装着した状態を示す下面図である。図６は、図５のＶＩ−ＶＩ線に沿う断面図である。 FIG. 5 is a bottom view showing a state in which the orthodontic appliance according to the second embodiment of the present invention is attached to the maxillary dentition portion. FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG.

なお、本実施形態では、前記第１実施形態及びその変形例と同一又は対応する部分には、同一の符号を付して説明する。 In this embodiment, the same or corresponding parts as those of the first embodiment and its modifications will be described with the same reference numerals.

図５及び図６に示すように、歯列矯正装置としての拡大床２０は、左右の床部２１と、拡大手段としての拡大ねじ２２及びガイド部２３とを備える。左右の床部２１は、それぞれ例えばアクリル樹脂等の樹脂シートによって作製され、所定の可撓性を備えている。左右の床部２１は、口腔２内の形状、すなわち口蓋の形状に適合するような形状に成形されている。 As shown in FIGS. 5 and 6, the enlarged floor 20 as an orthodontic appliance includes left and right floor portions 21, and an enlarged screw 22 and a guide portion 23 as expanding means. The left and right floor portions 21 are each made of a resin sheet such as acrylic resin and have predetermined flexibility. The left and right floor portions 21 are formed into a shape that matches the shape of the oral cavity 2, that is, the shape of the palate.

左右の床部２１は、図５及び図６に示すようにそれぞれ外縁部２１ａが形成され、各外縁部２１ａは、左右の上顎歯列部３の左右の奥歯５の内側に係止されるように左右の奥歯５の内側の形状に沿うように形成されている。 The left and right floor portions 21 are formed with outer edge portions 21a as shown in FIGS. 5 and 6, and each outer edge portion 21a is locked to the inside of the left and right molars 5 of the left and right maxillary dentition portions 3. It is formed so as to follow the inner shape of the left and right molars 5.

左右の床部２１は、複数の歯根間部９ａに対応する部位にそれぞれ永久磁石１２が埋設されている。本実施形態では、永久磁石１２が左右の床部２１にそれぞれ４個ずつ設けられている。永久磁石１２は、図５に示すように円板状に形成され、前記第１実施形態と同様に奥歯５の各歯頚ラインＬに対して歯根部９側に４ｍｍ以上離間して配置されている。なお、永久磁石１２のその他の構成及び設置位置等は、前記第１実施形態及び変形例と同様であるため、その説明を省略する。 In the left and right floor portions 21, permanent magnets 12 are embedded in the portions corresponding to the plurality of inter-root portions 9a, respectively. In this embodiment, four permanent magnets 12 are provided on each of the left and right floor portions 21. The permanent magnet 12 is formed in a disk shape as shown in FIG. 5, and is arranged at a distance of 4 mm or more on the root portion 9 side with respect to each cervical line L of the back teeth 5 as in the first embodiment. There is. Since the other configurations and installation positions of the permanent magnet 12 are the same as those of the first embodiment and the modified examples, the description thereof will be omitted.

拡大ねじ２２は、金属によって作製されて左右の床部２１間に設置されている。拡大ねじ２２は、例えば専用の回転用工具を用いて回転させることで、左右の床部２１を介して左右の奥歯５の位置を拡大するような力を付与する。拡大ねじ２２の両側には、それぞれガイド部２３が設けられている。これらのガイド部２３は、拡大ねじ２２を回転させたとき、左右の床部２１が同一平面を保持して開くように案内する。左右の床部２１は、拡大ねじ２２を回転させる前は互いに接触して略連続して形成されている。 The expansion screw 22 is made of metal and is installed between the left and right floor portions 21. The expansion screw 22 is rotated using, for example, a dedicated rotation tool to apply a force that expands the positions of the left and right molars 5 via the left and right floor portions 21. Guide portions 23 are provided on both sides of the expansion screw 22. These guide portions 23 guide the left and right floor portions 21 to hold and open in the same plane when the expansion screw 22 is rotated. The left and right floor portions 21 are in contact with each other and are formed substantially continuously before the expansion screw 22 is rotated.

次に、本実施形態の歯列矯正装置としての拡大床２０の作用について説明する。 Next, the operation of the enlarged floor 20 as the orthodontic appliance of the present embodiment will be described.

拡大床２０を左右の奥歯４の間に装着するには、左右の奥歯４の歯頚部寄りの内側に、左右の床部２１のそれぞれの外縁部２１ａを嵌め込むことで、左右の奥歯４の間に固定される。これにより、左右の奥歯４を横方向に短期間で拡げることができる。 In order to mount the enlarged floor 20 between the left and right molars 4, the outer edge portions 21a of the left and right floor portions 21 are fitted inside the left and right molars 4 near the neck, so that the left and right molars 4 can be mounted. It is fixed in between. As a result, the left and right molars 4 can be expanded laterally in a short period of time.

このように本実施形態の拡大床２０によれば、左右一対の床部２１部の上顎歯列部３の歯根間部９ａに位置する歯肉７に対応する部位に永久磁石１２が設けられているので、それぞれの永久磁石１２で歯根間部９ａに位置する歯肉７及び歯槽骨１１内の血行を良くし、上顎歯列部３の矯正期間を一段と短縮化することが可能となる。
［発明の他の実施形態］
本発明の各実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これらの実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更、組み合わせを行うことができる。これらの実施形態は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 As described above, according to the enlarged floor 20 of the present embodiment, the permanent magnet 12 is provided at the portion corresponding to the gingiva 7 located in the inter-root portion 9a of the maxillary dentition portion 3 of the pair of left and right floor portions 21. Therefore, it is possible to improve the blood circulation in the gingiva 7 and the alveolar bone 11 located in the inter-root portion 9a with each permanent magnet 12, and further shorten the correction period of the maxillary dentition portion 3.
[Other Embodiments of the Invention]
Although each embodiment of the present invention has been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, changes, and combinations can be made without departing from the gist of the invention. These embodiments are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

上記各実施形態では、歯列矯正具１０及び拡大床２０を上顎歯列部３に装着した例について説明したが、これに限らず下顎歯列部に装着した場合、上顎歯列部３及び下顎歯列部の双方に装着した場合にも適用可能であり、要するに上顎歯列部３及び下顎歯列部の少なくとも一方に装着した場合に適用可能である。 In each of the above embodiments, an example in which the orthodontic tool 10 and the enlarged bed 20 are attached to the upper dentition portion 3 has been described. It is also applicable when it is attached to both of the dentition portions, and in short, it is applicable when it is attached to at least one of the upper dentition portion 3 and the lower dentition portion.

また、上記各実施形態では、歯列矯正具１０の素材、形状については、口腔２内に挿入することができるもので同様の機能を有するものであれば、適宜の素材で構成されていてもよい。 Further, in each of the above embodiments, the material and shape of the orthodontic appliance 10 may be made of an appropriate material as long as it can be inserted into the oral cavity 2 and has the same function. good.

さらに、上記第１実施形態と上記第２実施形態を組み合わせて構成すれば、歯肉７及び歯槽骨１１内の血行をさらに良くし、上顎歯列部３の矯正期間を一段と短縮化することが可能となる。また、上記第１実施形態の変形例と上記第２実施形態を組み合わせて構成したとしても、同様の効果が得られる。 Further, if the first embodiment and the second embodiment are combined and configured, the blood circulation in the gingiva 7 and the alveolar bone 11 can be further improved, and the correction period of the maxillary dentition portion 3 can be further shortened. Will be. Further, even if the modified example of the first embodiment and the second embodiment are combined and configured, the same effect can be obtained.

そして、上記各実施形態及び変形例では、歯根間部９ａに位置する歯肉７に対応する部位に永久磁石１２を設けた例について説明したが、これに限らず歯根部９に位置する歯肉７に対応する部位に永久磁石１２を設けるようにしてもよく、要するに、少なくとも歯根間部９ａに位置する歯肉７に対応する部位に永久磁石１２を設ければよい。 In each of the above embodiments and modifications, an example in which the permanent magnet 12 is provided at the portion corresponding to the gingiva 7 located in the inter-root portion 9a has been described, but the present invention is not limited to this, and the gingiva 7 located in the root portion 9 is not limited to this. The permanent magnet 12 may be provided at the corresponding portion, and in short, the permanent magnet 12 may be provided at the portion corresponding to the gingiva 7 located at least in the inter-root portion 9a.

１ マウスピース
２ 口腔
３ 上顎歯列部
４ 前歯
５ 奥歯
６ 歯冠部
７ 歯肉
８ 歯肉部
９ 歯根部
９ａ 歯根間部
１０ 歯列矯正具（矯正装置本体）
１１ 歯槽骨
１２ 永久磁石
１２Ａ 永久磁石
２０ 拡大床（歯列矯正装置）
２１ 床部
２１ａ 外縁部
２２ 拡大ねじ（拡大手段）
２３ ガイド部（拡大手段） 1 Mouthpiece 2 Oral 3 Upper dentition 4 Front teeth 5 Back teeth 6 Crown 7 Gingiva 8 Gingiva 9 Root 9a Inter-root 10 Orthodontic appliance (orthodontic appliance body)
11 Alveolar bone 12 Permanent magnet 12A Permanent magnet 20 Enlarged floor (orthodontic appliance)
21 Floor 21a Outer edge 22 Expansion screw (enlargement means)
23 Guide section (enlargement means)

かかる課題を達成するために、請求項１に記載の発明は、歯列部の内側に係止される左右一対の床部と、前記左右一対の床部の間に設けられ、前記左右一対の床部の間を外側に広げる拡大手段と、を備え、前記左右一対の床部のそれぞれの外縁部が前記歯列部に当接するように構成されているとともに、前記外縁部の内側であって各臼歯の間の歯根間部に位置する歯肉に対応する部位にそれぞれ永久磁石が配設され、前記永久磁石から前記歯肉に磁力を付与すると同時に、前記拡大手段の前記左右一対の床部を広げる力によって該左右一対の床部の前記外縁部から前記歯列部に力を加えて該歯列部を左右に広げるように構成されていることを特徴とする。 In order to achieve such a problem, the invention according to claim 1 is provided between the pair of left and right floor portions locked inside the dentition portion and the pair of left and right floor portions, and the pair of left and right floor portions are provided. A means for expanding the space between the floors to the outside is provided, and the outer edges of the pair of left and right floors are configured to abut on the dentition, and are inside the outer edges. A permanent magnet is arranged at a portion corresponding to the gingiva located between the tooth roots between the dentitions, and a magnetic force is applied to the gingiva from the permanent magnet, and at the same time, the pair of left and right floor portions of the expanding means are expanded. It is characterized in that the dentition portion is expanded to the left and right by applying a force from the outer edge portion of the pair of left and right floor portions to the dentition portion.

また、請求項２に記載の発明は、請求項１に記載の構成に加え、前記永久磁石は、前記歯列部の歯冠部と歯冠部との間の位置に対応する部位にそれぞれ設けられていることを特徴とする。 Further, in the invention according to claim 2 , in addition to the configuration according to claim 1 , the permanent magnet is provided at a portion corresponding to the position between the crown portion and the crown portion of the dentition portion. It is characterized by being.

また、請求項３に記載の発明は、請求項１又は２に記載の構成に加え、前記永久磁石は、前記歯列部の歯頚ラインに対して歯根部側に４ｍｍ以上離間して配置されていることを特徴とする。 The invention according to claim 3, in addition to the configuration according to claim 1 or 2, wherein the permanent magnets are spaced apart more than 4mm in root portion side with respect to the tooth neck line of the teeth portion It is characterized by being.

請求項１に記載の発明によれば、左右一対の床部における歯列部の歯根間部に位置する歯肉に対応する部位に永久磁石が設けられているので、それぞれの永久磁石で歯根間部に位置する歯肉及び歯槽骨内の血行を良くし、歯列部の矯正期間を一段と短縮化することが可能となる。
また、請求項１に記載の発明によれば、前記左右一対の床部のそれぞれの外縁部が歯列部の位置を拡大するような力を付与し、各外縁部の内側に永久磁石が設けられているので、歯列部の移動を永久磁石で一段と促進することが可能となる。 According to the invention according to claim 1, since a permanent magnet is provided at a portion corresponding to the gingiva located in the inter-gingival portion of the dentition portion in the pair of left and right floor portions, the inter-root portion is provided with each permanent magnet. It is possible to improve blood circulation in the gingiva and alveolar bone located in the gingiva and further shorten the correction period of the dentition.
Further, according to the first aspect of the present invention, each outer edge portion of the pair of left and right floor portions applies a force to expand the position of the dentition portion, and a permanent magnet is provided inside each outer edge portion. Therefore, it is possible to further promote the movement of the dentition with a permanent magnet.

また、請求項２に記載の発明によれば、永久磁石は、歯列部の歯冠部と歯冠部との間の位置に対応する部位にそれぞれ設けられているので、歯列部を矯正するとともに、歯列部の移動を促進することが可能となる。 Further , according to the invention of claim 2 , since the permanent magnets are provided at the portions corresponding to the positions between the crown portion and the crown portion of the dentition portion, the dentition portion is corrected. At the same time, it becomes possible to promote the movement of the dentition portion.

また、請求項３に記載の発明によれば、永久磁石は、歯列部の歯頚ラインに対して歯根部側に４ｍｍ以上離間して配置されているので、歯根間部に位置する歯肉及び歯槽骨内の血行が著しく良好となり、歯列部の移動を一段と促進することが可能となる。 Further , according to the invention of claim 3 , since the permanent magnet is arranged at a distance of 4 mm or more on the root portion side with respect to the cervical line of the dentition portion, the gingiva located in the inter-root portion and the gingiva The blood circulation in the alveolar bone is remarkably improved, and the movement of the dentition can be further promoted.

Claims (4)

歯列部の内側に係止される左右一対の床部と、
前記左右一対の床部の間に設けられ、前記左右一対の床部の間を外側に広げる拡大手段と、を備え、
前記左右一対の床部の前記歯列部の歯根間部に位置する歯肉に対応する部位に永久磁石が設けられていることを特徴とする歯列矯正装置。 A pair of left and right floors that are locked inside the dentition,
It is provided between the pair of left and right floors, and is provided with an expanding means for expanding the space between the pair of left and right floors to the outside.
An orthodontic apparatus characterized in that a permanent magnet is provided at a portion corresponding to the gingiva located in the inter-root portion of the dentition portion of the pair of left and right floor portions. 前記左右一対の床部のそれぞれの外縁部が前記歯列部の位置を拡大するような力を付与し、前記各外縁部の内側に前記永久磁石が設けられていることを特徴とする請求項１に記載の歯列矯正装置。 A claim, wherein each outer edge portion of the pair of left and right floor portions applies a force to expand the position of the dentition portion, and the permanent magnet is provided inside each of the outer edge portions. The orthodontic appliance according to 1. 前記永久磁石は、前記歯列部の歯冠部と歯冠部との間の位置に対応する部位にそれぞれ設けられていることを特徴とする請求項１又は２に記載の歯列矯正装置。 The orthodontic appliance according to claim 1 or 2, wherein the permanent magnet is provided at a portion corresponding to a position between the crown portion and the crown portion of the dentition portion, respectively. 前記永久磁石は、前記歯列部の歯頚ラインに対して歯根部側に４ｍｍ以上離間して配置されていることを特徴とする請求項１乃至３のいずれか一項に記載の歯列矯正装置。 The orthodontic treatment according to any one of claims 1 to 3, wherein the permanent magnet is arranged at a distance of 4 mm or more from the cervical line of the dentition portion on the tooth root portion side. Device.
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