WO2015063897A1 - Lingual orthodontic bracket - Google Patents

Lingual orthodontic bracket Download PDF

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Publication number
WO2015063897A1
WO2015063897A1 PCT/JP2013/079455 JP2013079455W WO2015063897A1 WO 2015063897 A1 WO2015063897 A1 WO 2015063897A1 JP 2013079455 W JP2013079455 W JP 2013079455W WO 2015063897 A1 WO2015063897 A1 WO 2015063897A1
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WO
WIPO (PCT)
Prior art keywords
slot
bracket
archwire
length direction
lingual
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Application number
PCT/JP2013/079455
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French (fr)
Japanese (ja)
Inventor
俊明 広
Original Assignee
俊明 広
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Application filed by 俊明 広 filed Critical 俊明 広
Priority to PCT/JP2013/079455 priority Critical patent/WO2015063897A1/en
Publication of WO2015063897A1 publication Critical patent/WO2015063897A1/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
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/20—Arch wires
    • 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
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/14—Brackets; Fixing brackets to teeth
    • A61C7/145—Lingual brackets
    • 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
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/14—Brackets; Fixing brackets to teeth
    • A61C7/148—Brackets; Fixing brackets to teeth with occlusal or gingival archwire slot opening
    • 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
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/28—Securing arch wire to bracket

Definitions

  • the present invention relates to a lingual orthodontic bracket used by adhering and fixing to a tooth to be corrected in order to bridge an archwire in orthodontic treatment, particularly lingual orthodontic treatment. More specifically, the present invention relates to a lingual orthodontic bracket suitable for use on an anterior tooth that is bridged in a state where an archwire is bent greatly in lingual orthodontic treatment.
  • an orthodontic apparatus used for orthodontic treatment there is known an orthodontic apparatus provided with a bracket that is adhesively fixed to a labial surface or a lingual surface of each tooth to be orthodontic and an archwire that spans these brackets. .
  • a relatively thin (thin) flexible archwire is used in the initial stage of treatment, and a small orthodontic force is applied to each tooth. Then, the archwire is gradually replaced with a thicker (thick) archwire, and a greater correction force is applied to each tooth to correct each tooth to a target position or posture.
  • Patent Document 1 proposes an orthodontic bracket suitable for use in lingual orthodontic treatment.
  • the conventional orthodontic bracket is formed with an archwire slot that extends linearly in the distal mesial direction of the dental arch when in use.
  • an object of the present invention is to propose a lingual correction bracket including an archwire slot that can avoid a single point contact state with a large bent portion of an archwire.
  • the bottom surface of the slot has a shape in which the central portion is relatively recessed with respect to both end portions in the slot length direction.
  • the present invention is a lingual correction bracket having an archwire slot through which an archwire is passed, wherein the archwire passed through the archwire slot has both sides in the slot length direction on the slot bottom surface of the archwire slot.
  • the center portion in the slot length direction of the bottom surface of the slot is relatively recessed with respect to the end portions on both sides so as to contact at two points of the end portion of the slot.
  • the slot bottom surface of the archwire slot has a first bottom surface end portion formed on one side in the length direction of the slot bottom surface and a second bottom surface end formed on the other side in the length direction. And a bottom center portion formed at the center portion in the length direction. The bottom center portion is in contact so that the archwire passed through the archwire slot contacts at two points of the first and second bottom end portions on both sides in the slot length direction on the slot bottom surface of the archwire slot, The first and second bottom surface end portions are recessed relatively.
  • the both end portions and the central portion of the bottom surface of the slot can be defined by a plane or a curved surface when viewed along the slot length direction.
  • the first and second bottom surface end portions and the bottom surface center portion are defined by a plane
  • the bottom surface center portion is a relatively deep bottom surface portion with respect to the first and second bottom surface end portions, It can be set as the shape where the bottom part center part was connected by the 1st level
  • the whole slot bottom face may be prescribed
  • an overhanging portion is formed that protrudes in the slot length direction, and each of the overhanging portions is the end portions on both sides of the slot bottom surface.
  • a continuous surface may be provided.
  • the bent portion of the arch wire can be brought into a two-point contact state in which the arch wire is in contact with the end portions on both sides without contacting the central portion of the arch wire slot in the slot length direction.
  • rotation control of anterior teeth can be performed reliably and easily.
  • the contact area between the arch wire and the bottom surface of the slot can be reduced, thereby reducing the friction between the arch wire and the lingual orthodontic bracket, and the front teeth There is also an effect that the movement of can be accelerated.
  • bracket for lingual correction for the front teeth to which the present invention is applied. It is the top view and side view of a bracket for lingual correction. It is a fragmentary sectional view which shows the arrow view of a bracket for lingual side correction, and a slot bottom face shape. It is the perspective view which shows another example of the bracket for lingual correction, and the fragmentary sectional view which shows slot bottom face shape.
  • FIG. 1 is a perspective view showing a lingual correction bracket according to the present embodiment
  • FIGS. 2A and 2B are a plan view and a side view thereof, respectively.
  • the lingual orthodontic bracket 1 (hereinafter sometimes simply referred to as “bracket 1”) is suitable for use on the front teeth, and a bracket base 2 that is bonded and fixed to the lingual surface of the front teeth, and the bracket.
  • a bracket main body 3 protruding from the surface 2a of the base 2 and an archwire slot 4 (hereinafter sometimes simply referred to as “slot 4”) formed in the bracket main body 3 are provided.
  • the bracket 1 is formed from a material such as a metal material or a plastic material.
  • the bracket base 2 is a plate having a constant thickness and has a vertically long substantially trapezoidal outline with Rs at the four corners.
  • the bracket main body 3 includes a neck portion 5 having a substantially rectangular cross section connected to the bracket base 2. When the narrow width side of the bracket base 2 is the bracket front side, the bracket front side portion of the neck portion 5 protrudes toward the bracket front side to form a hook 6.
  • a cylindrical neck portion 6a and a spherical head portion 6b having a larger diameter are formed at the tip portion of the hook 6.
  • a wing 7 is formed on a portion of the neck portion 5 on the rear side of the bracket.
  • the wing 7 has a shape in which the distal end side extends in front and rear of the bracket.
  • a ring for ligation or the like is attached using the portions of the hook 6 and the wing 7.
  • the slot 4 is formed between the hook 6 and the wing 7 in the bracket body 3.
  • the slot 4 is defined by a slot bottom surface 4a extending in the bracket width direction X (the distal mesial direction of the dental arch when attached to the front teeth) and inner side surfaces 4b and 4c on both sides.
  • the inner side surfaces 4b and 4c are inclined surfaces extending in a direction inclined by, for example, about 40 degrees with respect to the bracket base 2 at regular intervals, and extend in a direction orthogonal to the bottom surface 4a. ing.
  • the ends on both sides in the length direction of the slot 4 are open ends that are opened laterally from the end faces 3 a and 3 b on both sides of the bracket body 3.
  • FIG. 3A is an arrow view when the lingual correction bracket 1 is viewed from the direction of arrow A shown in FIG. 2B
  • FIG. 3B is a view shown in FIG. 2B. It is a fragmentary sectional view at the time of cut
  • the slot bottom surface 4a of the slot 4 has a shape in which the central portion is recessed with respect to the portions on both sides when viewed along the length direction. That is, the central portion 13 in the slot length direction is recessed by one step with respect to the end portions 11 and 12 on both sides in the length direction of the slot bottom surface 4a.
  • the surfaces of the end portions 11 and 12 and the central portion 13 are both defined by a plane, and the step portions 14 and 15 between them are connected by an inclined surface.
  • the bent portion of the arch wire W is passed through the slot 4 of the bracket 1 adhered and fixed to the lingual surface of the front tooth.
  • the central portion 13 is recessed by one step as compared with the end portions 11 and 12 on both sides in the slot length direction. Therefore, the outside of the bent portion of the archwire W does not contact the central portion 13 but contacts the end portions 11 and 12 on both sides to form a two-point contact state.
  • the two-point contact state where the end portions 11 and 12 on both sides of the slot bottom surface 4a are in contact with the arch wire W can be achieved by appropriately setting the amount of depression in the central portion 13. Can be reliably formed.
  • the overhanging pieces 16 and 17 are formed on both sides of the slot 4 so that the rotation control can be easily performed.
  • the overhanging pieces 16 and 17 may be omitted. Is possible.
  • FIG. 4A is a perspective view showing another example of the lingual bracket
  • FIG. 4B is an explanatory view showing the shape of the bottom of the slot.
  • the basic configuration of the lingual correction bracket 21 shown in these drawings is the same as that of the lingual correction bracket 1 shown in FIGS. 1 to 3, and a bracket base 22 bonded and fixed to the lingual surface of the front teeth, and the bracket A bracket main body 23 protruding from the surface 22a of the base 22 and an archwire slot 24 (hereinafter sometimes simply referred to as “slot 24”) formed in the bracket main body 23 are provided.
  • a hook 26 and a wing 27 are formed in the bracket main body 23, and a slot 24 extending in the bracket width direction X is formed therebetween.
  • the slot 24 in this example is a curved slot extending in an arc shape in the bracket width direction X. That is, the slot bottom surface 24a of the slot 24 is defined by a concave arc surface when viewed along the slot length direction (bracket width direction X), and compared to the end portions 31 and 32 on both sides in the slot length direction. The central portion 33 in the slot length direction is relatively recessed.
  • projecting pieces 36 and 37 projecting in the direction orthogonal to the end faces 23a and 23b on both sides of the bracket body 23, that is, in the slot length direction, are formed. Yes.
  • the surfaces 36 a and 37 a of the projecting pieces 36 and 37 are defined by concave arc surfaces that continuously extend to the surfaces of the end portions 31 and 32 on both sides of the slot 24.
  • the archwire W falls into a state where it is in contact with the bracket 1 at one point, and at the time of ligation, the front teeth are twisted right or left around the contact point.
  • the adverse effect of difficult rotation control of the front teeth can be avoided.
  • the overhanging pieces 36 and 37 on both sides of the slot may be omitted.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Provided is a lingual orthodontic bracket (1) in which the central section (13) of a slot bottom surface (4a) is recessed relative to both end sections (11, 12) in the slot length direction when viewed along the slot length direction. One-point contact in which a bent part of an arch wire (W) is in contact with only the central section (13) of the slot bottom surface (4a) is prevented and it is thus possible to form a two-point contact state in which said arch wire (W) is in contact with both end sections (11, 12). The present invention makes it possible to reliably and easily perform rotation control of the front teeth. In addition, friction between the arch wire and the lingual orthodontic bracket is reduced, and it is thereby possible to increase the speed of movement of the front teeth.

Description

舌側矯正用ブラケットLingual bracket
　本発明は、歯科矯正治療、特に、舌側矯正治療においてアーチワイヤを架け渡すために矯正対象の歯に接着固定して用いる舌側矯正用ブラケットに関する。さらに詳しくは、舌側矯正治療においてアーチワイヤが大きく曲げられた状態で架け渡される前歯に用いるのに適した舌側矯正用ブラケットに関する。 The present invention relates to a lingual orthodontic bracket used by adhering and fixing to a tooth to be corrected in order to bridge an archwire in orthodontic treatment, particularly lingual orthodontic treatment. More specifically, the present invention relates to a lingual orthodontic bracket suitable for use on an anterior tooth that is bridged in a state where an archwire is bent greatly in lingual orthodontic treatment.
　歯科矯正治療に用いる歯科矯正装置としては、矯正対象の歯のそれぞれにおける唇側表面あるいは舌側表面に接着固定するブラケットと、これらのブラケットに架け渡すアーチワイヤとを備えたものが知られている。この歯科矯正装置を用いた矯正治療においては、治療の初期においては比較的細い（薄い）柔軟なアーチワイヤが使用され、小さな矯正力を各歯に加えるようにしている。そして、徐々に厚い（太い）アーチワイヤに交換して、より大きな矯正力を各歯に加えて各歯を目標位置あるいは姿勢となるように矯正している。 As an orthodontic apparatus used for orthodontic treatment, there is known an orthodontic apparatus provided with a bracket that is adhesively fixed to a labial surface or a lingual surface of each tooth to be orthodontic and an archwire that spans these brackets. . In orthodontic treatment using this orthodontic apparatus, a relatively thin (thin) flexible archwire is used in the initial stage of treatment, and a small orthodontic force is applied to each tooth. Then, the archwire is gradually replaced with a thicker (thick) archwire, and a greater correction force is applied to each tooth to correct each tooth to a target position or posture.
　特許文献１には、舌側矯正治療に用いるのに適した歯科矯正用ブラケットが提案されている。当該特許文献１にも記載されているように、従来における歯科矯正用ブラケットには、使用状態において歯列弓の遠心近心方向に直線状に延びるアーチワイヤスロットが形成されている。 Patent Document 1 proposes an orthodontic bracket suitable for use in lingual orthodontic treatment. As described in Patent Document 1, the conventional orthodontic bracket is formed with an archwire slot that extends linearly in the distal mesial direction of the dental arch when in use.
特開平１１－２２６０３３号公報JP-A-11-226033
　舌側矯正治療において、歯列弓に沿った形状となるように湾曲した状態で各歯のブラケットに架け渡されるアーチワイヤでは、その前歯部における曲がりが他の部分に比べて大きい。従来においては、各位置にある歯に対応した形状の歯科矯正用ブラケットが使用されているが、それらに形成されているアーチワイヤスロットはスロット底面が直線状に延びている平面によって規定されている直線状スロットである。このため、大きく曲げられるアーチワイヤの部分が通される前歯部の舌側矯正用ブラケットにおいては、スロット底面に対して、アーチワイヤの曲がり部分の外側が１点で接した１点接触状態となってしまう。 In the lingual orthodontic treatment, in the archwire that is bridged to each tooth bracket in a curved shape so as to follow the dental arch, the bending at the front tooth portion is larger than the other portions. Conventionally, orthodontic brackets having a shape corresponding to the teeth at each position are used, but the archwire slots formed in them are defined by a plane in which the bottom surface of the slot extends linearly. It is a straight slot. For this reason, in the lingual-side orthodontic bracket of the anterior tooth portion through which the portion of the arch wire that is bent greatly is passed, a one-point contact state in which the outside of the bent portion of the arch wire is in contact with the bottom surface of the slot at one point. End up.
　このことは、治療初期の段階における柔らかいアーチワイヤにおいては、結紮をしっかりと行うことでアーチワイヤが撓んで直線状に延びるスロット底面に対して面接触となるので、問題とならない。しかし、治療が進むにつれてアーチワイヤの硬さが増すと、しっかりと結紮してもアーチワイヤが曲がり難くなり、直線状のスロット底面に対して面接触できず、曲がり部分の外側の１点で点接触する傾向が現れる。１点接触状態でアーチワイヤを舌側矯正用ブラケットに結紮すると、接触点を中心として前歯が右あるいは左に捻転してしまい、ローテーションコントロールが困難となることが多い。 This is not a problem for soft archwires in the initial stage of treatment because the archwires are bent and brought into surface contact with the bottom surfaces of the slots extending linearly when firmly ligated. However, as the treatment progresses, the hardness of the archwire increases, making it difficult for the archwire to bend even if it is tightly ligated, making it impossible to make surface contact with the bottom of the straight slot. A tendency to touch appears. If the archwire is ligated to the lingual orthodontic bracket in a one-point contact state, the anterior teeth twist to the right or left around the contact point, and rotation control is often difficult.
　本発明の課題は、この点に鑑みて、アーチワイヤの大きな曲がり部分に対して１点接触状態に陥ることを回避可能なアーチワイヤスロットを備えた舌側矯正用ブラケットを提案することにある。 In view of this point, an object of the present invention is to propose a lingual correction bracket including an archwire slot that can avoid a single point contact state with a large bent portion of an archwire.
　本発明の舌側矯正用ブラケットでは、そのスロット底面を、そのスロット長さ方向の両端部分に対して中央部分を相対的に窪ませた形状としてある。 In the bracket for lingual correction according to the present invention, the bottom surface of the slot has a shape in which the central portion is relatively recessed with respect to both end portions in the slot length direction.
　すなわち、本発明は、アーチワイヤを通すアーチワイヤスロットを備えた舌側矯正用ブラケットであって、前記アーチワイヤスロットに通したアーチワイヤが、前記アーチワイヤスロットのスロット底面におけるスロット長さ方向の両側の端部の２点で接触するように、前記両側の端部に対して、前記スロット底面のスロット長さ方向の中央部が相対的に窪んでいることを特徴としている。 That is, the present invention is a lingual correction bracket having an archwire slot through which an archwire is passed, wherein the archwire passed through the archwire slot has both sides in the slot length direction on the slot bottom surface of the archwire slot. The center portion in the slot length direction of the bottom surface of the slot is relatively recessed with respect to the end portions on both sides so as to contact at two points of the end portion of the slot.
　換言すると、本発明において、アーチワイヤスロットのスロット底面は、当該スロット底面の長さ方向の一方の側に形成した第１底面端部と、前記長さ方向の他方側に形成した第２底面端部と、前記長さ方向の中央部分に形成した底面中央部とを備えている。前記アーチワイヤスロットに通したアーチワイヤが、前記アーチワイヤスロットのスロット底面におけるスロット長さ方向の両側の前記第１、第２底面端部の２点で接触するように、前記底面中央部は、前記第１、第２底面端部に対して、相対的に窪んでいる。 In other words, in the present invention, the slot bottom surface of the archwire slot has a first bottom surface end portion formed on one side in the length direction of the slot bottom surface and a second bottom surface end formed on the other side in the length direction. And a bottom center portion formed at the center portion in the length direction. The bottom center portion is in contact so that the archwire passed through the archwire slot contacts at two points of the first and second bottom end portions on both sides in the slot length direction on the slot bottom surface of the archwire slot, The first and second bottom surface end portions are recessed relatively.
　ここで、前記スロット底面における前記両側の端部および前記中央部分は、前記スロット長さ方向に沿って見た場合に、平面あるいは曲面によって規定することができる。例えば、第１、第２底面端部および底面中央部が平面によって規定され、第１、第２底面端部に対して底面中央部が相対的に深い底面部分とされ、第１底面端部と底面中央部の間が第１段差部で繋がり、第２底面端部と底面中央部の間が第２段差部で繋がった形状とすることができる。あるいは、スロット底面の全体がスロット長さ方向に沿って湾曲面によって規定され、中央部が窪んでいてもよい。 Here, the both end portions and the central portion of the bottom surface of the slot can be defined by a plane or a curved surface when viewed along the slot length direction. For example, the first and second bottom surface end portions and the bottom surface center portion are defined by a plane, the bottom surface center portion is a relatively deep bottom surface portion with respect to the first and second bottom surface end portions, It can be set as the shape where the bottom part center part was connected by the 1st level | step-difference part, and between the 2nd bottom face edge part and the bottom face center part was connected by the 2nd step part. Or the whole slot bottom face may be prescribed | regulated by the curved surface along the slot length direction, and the center part may be depressed.
　また、前記アーチワイヤスロットのスロット長さ方向の両端には、それぞれ、スロット長さ方向に張り出している張出部が形成され、前記張出部のそれぞれは、前記スロット底面における前記両側の端部に連続している表面を備えていても良い。 In addition, at both ends of the archwire slot in the slot length direction, an overhanging portion is formed that protrudes in the slot length direction, and each of the overhanging portions is the end portions on both sides of the slot bottom surface. A continuous surface may be provided.
　このようにすることで、アーチワイヤの曲がり部分を、アーチワイヤスロットにおけるスロット長さ方向の中央部に接触させずに、両側の端部に接触した２点接触状態にすることができる。これにより、前歯のローテーションコントロールを確実かつ容易に行うことができる。また、スロット底面の中央部が窪んでいるので、アーチワイヤとスロット底面との間の接触面積を少なくでき、これによって、アーチワイヤと舌側矯正用ブラケットの間のフリクションを減らすことができ、前歯の移動を早くすることができるという効果も得られる。 By doing so, the bent portion of the arch wire can be brought into a two-point contact state in which the arch wire is in contact with the end portions on both sides without contacting the central portion of the arch wire slot in the slot length direction. Thereby, rotation control of anterior teeth can be performed reliably and easily. In addition, since the central portion of the bottom surface of the slot is recessed, the contact area between the arch wire and the bottom surface of the slot can be reduced, thereby reducing the friction between the arch wire and the lingual orthodontic bracket, and the front teeth There is also an effect that the movement of can be accelerated.
本発明を適用した前歯用の舌側矯正用ブラケットの斜視図である。It is a perspective view of the bracket for lingual correction for the front teeth to which the present invention is applied. 舌側矯正用ブラケットの平面図および側面図である。It is the top view and side view of a bracket for lingual correction. 舌側矯正用ブラケットの矢視図およびスロット底面形状を示す部分断面図である。It is a fragmentary sectional view which shows the arrow view of a bracket for lingual side correction, and a slot bottom face shape. 舌側矯正用ブラケットの別の例を示す斜視図およびスロット底面形状を示す部分断面図である。It is the perspective view which shows another example of the bracket for lingual correction, and the fragmentary sectional view which shows slot bottom face shape.
　以下に、図面を参照して本発明を適用した舌側矯正用ブラケットの実施の形態を説明する。 Hereinafter, an embodiment of a bracket for lingual correction to which the present invention is applied will be described with reference to the drawings.
　図１は本実施の形態に係る舌側矯正用ブラケットを示す斜視図であり、図２（ａ）および（ｂ）はその平面図および側面図である。舌側矯正用ブラケット１（以下、単に「ブラケット１」と呼ぶ場合もある。）は前歯に用いるのに適したものであり、前歯の舌側表面に接着固定されるブラケットベース２と、このブラケットベース２の表面２ａから突出しているブラケット本体部３と、ブラケット本体部３に形成したアーチワイヤスロット４（以下、単に「スロット４」と呼ぶ場合もある。）を備えている。ブラケット１は金属素材、プラスチック素材等の素材から形成される。 FIG. 1 is a perspective view showing a lingual correction bracket according to the present embodiment, and FIGS. 2A and 2B are a plan view and a side view thereof, respectively. The lingual orthodontic bracket 1 (hereinafter sometimes simply referred to as “bracket 1”) is suitable for use on the front teeth, and a bracket base 2 that is bonded and fixed to the lingual surface of the front teeth, and the bracket. A bracket main body 3 protruding from the surface 2a of the base 2 and an archwire slot 4 (hereinafter sometimes simply referred to as “slot 4”) formed in the bracket main body 3 are provided. The bracket 1 is formed from a material such as a metal material or a plastic material.
　ブラケットベース２は一定厚さの板状のものであり、四隅にＲの付いた縦長の略台形状の輪郭をしている。ブラケット本体部３は、ブラケットベース２に繋がっている略矩形断面のネック部分５を備えている。ブラケットベース２の狭い幅の側をブラケット前側とすると、ネック部分５のブラケット前側の部分は、ブラケット前側に向けて突出してフック６を形成している。フック６の先端部分には円柱状の首部分６ａと、これよりも大径の球状頭部６ｂが形成されている。ネック部分５のブラケット後側の部分には、ウイング７が形成されている。ウイング７は、その先端側がブラケット前後に広がった形状をしている。フック６およびウイング７の部位を利用して結紮用のリング等が取り付けられる。 The bracket base 2 is a plate having a constant thickness and has a vertically long substantially trapezoidal outline with Rs at the four corners. The bracket main body 3 includes a neck portion 5 having a substantially rectangular cross section connected to the bracket base 2. When the narrow width side of the bracket base 2 is the bracket front side, the bracket front side portion of the neck portion 5 protrudes toward the bracket front side to form a hook 6. A cylindrical neck portion 6a and a spherical head portion 6b having a larger diameter are formed at the tip portion of the hook 6. A wing 7 is formed on a portion of the neck portion 5 on the rear side of the bracket. The wing 7 has a shape in which the distal end side extends in front and rear of the bracket. A ring for ligation or the like is attached using the portions of the hook 6 and the wing 7.
　スロット４は、ブラケット本体部３におけるフック６とウイング７の間に形成されている。スロット４は、ブラケット幅方向Ｘ（前歯に取り付けた状態において歯列弓の遠心近心方向）に延びるスロット底面４ａおよび両側の内側側面４ｂ、４ｃによって規定されている。図２（ｂ）から分かるように、内側側面４ｂ、４ｃは、一定の間隔でブラケットベース２に対して例えば４０度程度傾斜した方向に延びる傾斜面であり、底面４ａに対して直交方向に延びている。スロット４の長さ方向の両側の端は、ブラケット本体部３における両側の端面３ａ、３ｂから横方に開口している開口端となっている。 The slot 4 is formed between the hook 6 and the wing 7 in the bracket body 3. The slot 4 is defined by a slot bottom surface 4a extending in the bracket width direction X (the distal mesial direction of the dental arch when attached to the front teeth) and inner side surfaces 4b and 4c on both sides. As can be seen from FIG. 2B, the inner side surfaces 4b and 4c are inclined surfaces extending in a direction inclined by, for example, about 40 degrees with respect to the bracket base 2 at regular intervals, and extend in a direction orthogonal to the bottom surface 4a. ing. The ends on both sides in the length direction of the slot 4 are open ends that are opened laterally from the end faces 3 a and 3 b on both sides of the bracket body 3.
　図３（ａ）は、舌側矯正用ブラケット１を図２（ｂ）に示す矢印Ａの方向から見た場合の矢視図であり、図３（ｂ）は図２（ｂ）に示すＢ－Ｂ線で切断した場合の部分断面図である。これらの図から分かるように、スロット４のスロット底面４ａは、その長さ方向に沿って見た場合に、その両側の部位に対して中央の部位が窪んだ形状となっている。すなわち、スロット底面４ａの長さ方向における両側の端部１１、１２に対して、スロット長さ方向の中央部１３が一段窪んでいる。本例では、端部１１、１２および中央部１３の表面が共に平面によって規定されており、これらの間の段差部分１４、１５が傾斜面によって繋がっている。 3A is an arrow view when the lingual correction bracket 1 is viewed from the direction of arrow A shown in FIG. 2B, and FIG. 3B is a view shown in FIG. 2B. It is a fragmentary sectional view at the time of cut | disconnecting by the -B line. As can be seen from these drawings, the slot bottom surface 4a of the slot 4 has a shape in which the central portion is recessed with respect to the portions on both sides when viewed along the length direction. That is, the central portion 13 in the slot length direction is recessed by one step with respect to the end portions 11 and 12 on both sides in the length direction of the slot bottom surface 4a. In this example, the surfaces of the end portions 11 and 12 and the central portion 13 are both defined by a plane, and the step portions 14 and 15 between them are connected by an inclined surface.
　ここで、スロット４のスロット長さ方向の両端には、ブラケット本体部３の両側の端面３ａ、３ｂから直交する方向、すなわち、スロット長さ方向に張り出している張出片１６、１７が形成されている。張出片１６、１７は長方形断面のものであり、それらの表面１６ａ、１７ａは、スロット４の両側の端部１１、１２に連続して延びている平面によって規定されている。 Here, at both ends of the slot 4 in the slot length direction, projecting pieces 16 and 17 projecting in the direction orthogonal to the end faces 3 a and 3 b on both sides of the bracket body 3, that is, in the slot length direction, are formed. ing. The overhanging pieces 16, 17 have a rectangular cross section, and their surfaces 16 a, 17 a are defined by planes extending continuously to the end portions 11, 12 on both sides of the slot 4.
　図１および図３（ｂ）に想像線で示すように、前歯の舌側表面に接着固定したブラケット１のスロット４にはアーチワイヤＷの曲がり部分が通された状態になる。スロット底面４ａにおいては、スロット長さ方向の両側の端部１１、１２に比べて、その中央部１３が一段窪んでいる。したがって、アーチワイヤＷの曲がり部分の外側は、中央部１３に接触せずに、両側の端部１１、１２に接触して、２点接触の状態が形成される。アーチワイヤＷの曲がり状態を考慮して、中央部１３の窪み量を適切に設定しておくことで、スロット底面４ａの両側の端部１１、１２がアーチワイヤＷに接した２点接触状態を確実に形成できる。 As shown in phantom lines in FIG. 1 and FIG. 3 (b), the bent portion of the arch wire W is passed through the slot 4 of the bracket 1 adhered and fixed to the lingual surface of the front tooth. In the slot bottom surface 4a, the central portion 13 is recessed by one step as compared with the end portions 11 and 12 on both sides in the slot length direction. Therefore, the outside of the bent portion of the archwire W does not contact the central portion 13 but contacts the end portions 11 and 12 on both sides to form a two-point contact state. Considering the bending state of the arch wire W, the two-point contact state where the end portions 11 and 12 on both sides of the slot bottom surface 4a are in contact with the arch wire W can be achieved by appropriately setting the amount of depression in the central portion 13. Can be reliably formed.
　したがって、アーチワイヤＷがブラケット１に１点接触した状態に陥り、結紮の際に、接触点を中心として前歯が右あるいは左に捻転し、前歯のローテーションコントロールが困難になるという弊害を回避できる。また、アーチワイヤＷとブラケット１の間、すなわち、アーチワイヤＷとスロット底面４ａは窪んでいる中央部１３では接触しないので、これらの間のフリクションを低減でき、前歯の移動を早くすることができるという利点もある。 Therefore, it is possible to avoid the adverse effect that the archwire W is brought into contact with the bracket 1 at one point, and the front teeth are twisted right or left around the contact point during ligation, making it difficult to control the rotation of the front teeth. Further, since the archwire W and the bracket 1, that is, the archwire W and the bottom surface 4 a of the slot do not come into contact with each other at the depressed central portion 13, the friction between them can be reduced and the movement of the front teeth can be accelerated. There is also an advantage.
　なお、本例では、スロット４の両側に張出片１６、１７を形成して、ローテーションコントロールを容易に行うことができるようにしているが、これらの張出片１６、１７を省略することも可能である。 In this example, the overhanging pieces 16 and 17 are formed on both sides of the slot 4 so that the rotation control can be easily performed. However, the overhanging pieces 16 and 17 may be omitted. Is possible.
　図４（ａ）は舌側矯正用ブラケットの別の例を示す斜視図であり、図４（ｂ）はそのスロット底面の形状を示す説明図である。これらの図に示す舌側矯正用ブラケット２１の基本構成は図１～図３に示す舌側矯正用ブラケット１と同様であり、前歯の舌側表面に接着固定されるブラケットベース２２と、このブラケットベース２２の表面２２ａから突出しているブラケット本体部２３と、ブラケット本体部２３に形成したアーチワイヤスロット２４（以下、単に「スロット２４」と呼ぶ場合もある。）を備えている。ブラケット本体部２３にはフック２６およびウイング２７が形成されており、これらの間に、ブラケット幅方向Ｘに延びるスロット２４が形成されている。 FIG. 4A is a perspective view showing another example of the lingual bracket, and FIG. 4B is an explanatory view showing the shape of the bottom of the slot. The basic configuration of the lingual correction bracket 21 shown in these drawings is the same as that of the lingual correction bracket 1 shown in FIGS. 1 to 3, and a bracket base 22 bonded and fixed to the lingual surface of the front teeth, and the bracket A bracket main body 23 protruding from the surface 22a of the base 22 and an archwire slot 24 (hereinafter sometimes simply referred to as “slot 24”) formed in the bracket main body 23 are provided. A hook 26 and a wing 27 are formed in the bracket main body 23, and a slot 24 extending in the bracket width direction X is formed therebetween.
　本例のスロット２４はブラケット幅方向Ｘに円弧状に延びる湾曲スロットである。すなわち、スロット２４のスロット底面２４ａはスロット長さ方向（ブラケット幅方向Ｘ）に沿って見た場合に凹円弧面によって規定されており、スロット長さ方向の両側の端部３１、３２に比べて、スロット長さ方向の中央部３３が相対的に窪んでいる。 The slot 24 in this example is a curved slot extending in an arc shape in the bracket width direction X. That is, the slot bottom surface 24a of the slot 24 is defined by a concave arc surface when viewed along the slot length direction (bracket width direction X), and compared to the end portions 31 and 32 on both sides in the slot length direction. The central portion 33 in the slot length direction is relatively recessed.
　また、スロット２４のスロット長さ方向の両端には、ブラケット本体部２３の両側の端面２３ａ、２３ｂから直交する方向、すなわち、スロット長さ方向に張り出している張出片３６、３７が形成されている。張出片３６、３７の表面３６ａ、３７ａは、スロット２４の両側の端部３１、３２の表面に連続して延びている凹円弧面によって規定されている。 Further, at both ends of the slot 24 in the slot length direction, projecting pieces 36 and 37 projecting in the direction orthogonal to the end faces 23a and 23b on both sides of the bracket body 23, that is, in the slot length direction, are formed. Yes. The surfaces 36 a and 37 a of the projecting pieces 36 and 37 are defined by concave arc surfaces that continuously extend to the surfaces of the end portions 31 and 32 on both sides of the slot 24.
　図４（ｂ）に想像線で示すように、前歯の舌側表面に接着固定したブラケット２１のスロット２４にアーチワイヤＷを架け渡すと、アーチワイヤＷの曲がり部分がスロット２４に通された状態になる。スロット底面２４ａのスロット長さ方向の中央部３３は両側の部分よりも後退している。したがって、アーチワイヤＷの曲がり部分の外側がスロット底面２４ａの中央部３３に接触することなく、両側の張出片３６、３７の表面３６ａ、３７ａに接触した２点接触の状態が形成される。アーチワイヤＷの曲がり状態に応じて、中央部３３の後退量（窪み量）を適切に設定しておくことにより、２点接触状態を確実に形成できる。 As shown by an imaginary line in FIG. 4B, when the archwire W is bridged over the slot 24 of the bracket 21 that is bonded and fixed to the lingual surface of the front tooth, the bent portion of the archwire W is passed through the slot 24. become. The central portion 33 in the slot length direction of the slot bottom surface 24a is set back from the portions on both sides. Therefore, a two-point contact state in which the outer side of the bent portion of the archwire W is in contact with the surfaces 36a and 37a of the protruding pieces 36 and 37 on both sides is formed without contacting the central portion 33 of the slot bottom surface 24a. A two-point contact state can be reliably formed by appropriately setting the amount of retreat (the amount of depression) of the central portion 33 according to the bent state of the archwire W.
　したがって、図１～図３に示すブラケット１の場合と同様に、アーチワイヤＷがブラケット１に１点接触した状態に陥り、結紮の際に、接触点を中心として前歯が右あるいは左に捻転し、前歯のローテーションコントロールが困難になるという弊害を回避できる。また、アーチワイヤＷとブラケット２１の間のフリクションを低減でき、前歯の移動を早くすることができるという利点もある。なお、本例においても、スロット両側の張出片３６、３７を省略してもよいことは勿論である。 Accordingly, as in the case of the bracket 1 shown in FIGS. 1 to 3, the archwire W falls into a state where it is in contact with the bracket 1 at one point, and at the time of ligation, the front teeth are twisted right or left around the contact point. The adverse effect of difficult rotation control of the front teeth can be avoided. Further, there is an advantage that the friction between the archwire W and the bracket 21 can be reduced, and the movement of the front teeth can be accelerated. In this example as well, the overhanging pieces 36 and 37 on both sides of the slot may be omitted.

Claims (3)

  1. 　アーチワイヤ（Ｗ）を通すアーチワイヤスロット（４；２４）を備えた舌側矯正用ブラケット（１；２１）であって、
    　前記アーチワイヤスロット（４；２４）に通したアーチワイヤ（Ｗ）が、前記アーチワイヤスロット（４；２４）のスロット底面（４ａ；２４ａ）におけるスロット長さ方向（Ｘ）の両側の端部（１１、１２；３１、３２）の２点で接触するように、前記両側の端部（１１、１２；３１、３２）に対して、前記スロット底面（４ａ；２４ａ）のスロット長さ方向（Ｘ）の中央部（１３；３３）が相対的に窪んでいることを特徴とする舌側矯正用ブラケット（１；２１）。     A lingual orthodontic bracket (1; 21) with an archwire slot (4; 24) through which the archwire (W) passes;
    The archwire (W) that has passed through the archwire slot (4; 24) has end portions on both sides in the slot length direction (X) on the slot bottom surface (4a; 24a) of the archwire slot (4; 24) ( 11, 12; 31, 32) with respect to the end portions (11, 12; 31, 32) on both sides of the slot bottom surface (4 a; 24 a) in the slot length direction (X The bracket (1; 21) for correcting the lingual side, characterized in that the central portion (13; 33) of) is relatively depressed.
  2. 　前記スロット底面（４ａ；２４ａ）における前記両側の端部（１１、１２；３１、３２）および前記中央部（１３；３３）は、前記スロット長さ方向（Ｘ）に沿って見た場合に、平面あるいは曲面によって規定されている請求項１に記載の舌側矯正用ブラケット（１；２１）。 When viewed along the slot length direction (X), the end portions (11, 12; 31, 32) and the center portion (13; 33) on both sides of the slot bottom surface (4a; 24a) The bracket for lingual correction (1; 21) according to claim 1, which is defined by a flat surface or a curved surface.
  3. 　前記アーチワイヤスロット（４；２４）のスロット長さ方向（Ｘ）の両端には、それぞれ、スロット長さ方向に張り出している張出部（１６、１７；３６、３７）が形成されており、
    　前記張出部（１６、１７；３６、３７）のそれぞれは、前記スロット底面（４ａ；２４ａ）における前記両側の端部（１１、１２；３１、３２）に連続している表面（１６ａ、１７ａ；３６ａ、３７ａ）を備えている請求項２に記載の舌側矯正用ブラケット（１；２１）。     Overhang portions (16, 17; 36, 37) projecting in the slot length direction are formed at both ends of the arch wire slot (4; 24) in the slot length direction (X),
    Each of the projecting portions (16, 17; 36, 37) has a surface (16a, 17a) continuous to the end portions (11, 12; 31, 32) on both sides of the slot bottom surface (4a; 24a). 36a, 37a). Bracket for lingual correction (1; 21) according to claim 2.
PCT/JP2013/079455 2013-10-30 2013-10-30 Lingual orthodontic bracket WO2015063897A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017132079A1 (en) * 2016-01-29 2017-08-03 3M Innovative Properties Company Lingual orthodontic appliance
CN110013332A (en) * 2019-05-23 2019-07-16 四川大学 A kind of auxiliary bow invisible orthotic device of cat shape
JP2020518333A (en) * 2017-05-02 2020-06-25 ティーピー・オーソドンティクス・インコーポレーテッドＴｐ Ｏｒｔｈｏｄｏｎｔｉｃｓ Ｉｎｃｏｒｐｏｒａｔｅｄ Orthodontic bracket with fixed ligation tab

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5982013U (en) * 1982-11-25 1984-06-02 藤田　欣也 orthodontic appliance
JPH01160547A (en) * 1987-11-17 1989-06-23 Tp Orthodontics Inc Orthodontic bracket
JPH03176043A (en) * 1989-12-05 1991-07-31 Hajime Suyama Bracket for rectification of dental arch
JPH11226033A (en) * 1998-02-19 1999-08-24 Kiyoujin Takemoto Orthodontic device
JP2009538657A (en) * 2006-06-02 2009-11-12 テー．オー．ペー．サービス フューア リングアルテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング Bracket with pad
JP2012515067A (en) * 2009-01-16 2012-07-05 オルムコ コーポレイション Orthodontic bracket and method for correcting dislocation teeth

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5982013U (en) * 1982-11-25 1984-06-02 藤田　欣也 orthodontic appliance
JPH01160547A (en) * 1987-11-17 1989-06-23 Tp Orthodontics Inc Orthodontic bracket
JPH03176043A (en) * 1989-12-05 1991-07-31 Hajime Suyama Bracket for rectification of dental arch
JPH11226033A (en) * 1998-02-19 1999-08-24 Kiyoujin Takemoto Orthodontic device
JP2009538657A (en) * 2006-06-02 2009-11-12 テー．オー．ペー．サービス フューア リングアルテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング Bracket with pad
JP2012515067A (en) * 2009-01-16 2012-07-05 オルムコ コーポレイション Orthodontic bracket and method for correcting dislocation teeth

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017132079A1 (en) * 2016-01-29 2017-08-03 3M Innovative Properties Company Lingual orthodontic appliance
CN108601633A (en) * 2016-01-29 2018-09-28 3M创新有限公司 lingual surface orthodontic appliance
JP2019503241A (en) * 2016-01-29 2019-02-07 スリーエム イノベイティブ プロパティズ カンパニー Lingual orthodontic appliance
JP2020518333A (en) * 2017-05-02 2020-06-25 ティーピー・オーソドンティクス・インコーポレーテッドＴｐ Ｏｒｔｈｏｄｏｎｔｉｃｓ Ｉｎｃｏｒｐｏｒａｔｅｄ Orthodontic bracket with fixed ligation tab
JP7328150B2 (en) 2017-05-02 2023-08-16 ティーピー・オーソドンティクス・インコーポレーテッド Orthodontic brackets with fixed ligating tabs
CN110013332A (en) * 2019-05-23 2019-07-16 四川大学 A kind of auxiliary bow invisible orthotic device of cat shape
CN110013332B (en) * 2019-05-23 2024-01-30 四川大学 Invisible appliance for cat-shaped auxiliary bow

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