WO2010119880A1 - 歯列矯正用ブラケット - Google Patents
歯列矯正用ブラケット Download PDFInfo
- Publication number
- WO2010119880A1 WO2010119880A1 PCT/JP2010/056645 JP2010056645W WO2010119880A1 WO 2010119880 A1 WO2010119880 A1 WO 2010119880A1 JP 2010056645 W JP2010056645 W JP 2010056645W WO 2010119880 A1 WO2010119880 A1 WO 2010119880A1
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- WIPO (PCT)
- Prior art keywords
- bracket
- archwire
- orthodontic
- tooth
- orthodontic bracket
- Prior art date
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- ZOLBJFCMPBAEIH-UHFFFAOYSA-N CCCC(C)C1CC(C2)C2C1 Chemical compound CCCC(C)C1CC(C2)C2C1 ZOLBJFCMPBAEIH-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- A61C7/14—Brackets; Fixing brackets to teeth
-
- 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
- A61C7/143—Brackets with two or more recesses for 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
- A61C7/16—Brackets; Fixing brackets to teeth specially adapted to be cemented to teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
-
- 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
-
- 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
- A61C7/282—Buccal tubes
Definitions
- the present invention relates to an orthodontic bracket.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-161716
- FIGS. 10 and 11 Japanese Patent Laid-Open No. 2001-161716
- An orthodontic bracket 143 is bonded to a plurality of tooth surfaces 141A.
- the arch wire 146 is inserted into the recess 145 formed in the bracket 143, and the arch wire 146 is passed between the brackets 143.
- the elastic force of the arch wire 146 is applied to the teeth.
- Such an orthodontic bracket 143 has been conventionally formed of metal, but it is aesthetically pleasing due to the difference in color between the tooth and the metal bracket.
- a plastic or the like that is transparent or colored in a color similar to a tooth is used as a constituent material of the orthodontic bracket 143.
- the orthodontic bracket and the arch wire are merely engaged by inserting the arch wire into the recess 145 formed in the orthodontic bracket. Therefore, in order to securely engage the arch wire with the orthodontic bracket at the end portion, the orthodontic bracket and the arch wire at the end portion are ligated using the wire 150 for ligation.
- the arch wire 146 is inserted into the recess 145 formed in the bracket 143, there is no particular problem when the teeth are pushed to correct the dentition.
- the arch wire 146 may come out of the recess 145 formed in the bracket 143. In such a case, the arch wire 146 is attached to the bracket with the ligation wire 150. It was necessary to tie to 143.
- the conventional orthodontic bracket needs to ligate the archwire, so the shape must be complicated, and when ligation is further performed, the teeth are moved by the ligation force. It may interfere.
- this ligation work is a manual work and requires high skill.
- the eating candy may remain in the gap formed by the orthodontic bracket, arch wire or ligature wire. These eaten candy can cause tooth decay.
- Patent Document 2 Japanese Patent Laid-Open No. 2007-105361 discloses a method for preventing the occurrence of tooth decay associated with orthodontics as described above, and considering the aesthetics of the bracket and the workability of ligation. Furthermore, an invention of an orthodontic bracket in which a base portion 255 fixed to a tooth surface is formed with a slot hole 252 penetrating in the horizontal direction is disclosed. Furthermore, in Patent Document 2, as shown in FIG. 13, in order to change the correction direction according to each tooth, the penetration direction of the slot hole 252 is inclined so as to be displaced from the formation direction of the base portion 255. Drilling is disclosed.
- the number of displaced slot holes 252 disclosed in Patent Document 2 is one.
- the torque for correcting the outward inclination of the tooth must depend on the torque provided by the elasticity of the single archwire inserted into the slot hole 252.
- it is necessary to correct the dentition of the whole tooth in a well-balanced manner, and trying to obtain a high torque to correct the partial outward inclination of the tooth will cause extra stress on other teeth. It will be over.
- the orthodontic bracket described in Patent Document 2 has the characteristic that the side of the orthodontic bracket is inclined, so that it is difficult for the left side to eat.
- such an orthodontic bracket is generally mounted on the surface of a tooth by applying an adhesive on the back surface and sandwiching the side surface with tweezers, and is specifically described in Patent Document 2. If the sides are all inclined, it is difficult to pick them up with tweezers. For this reason, the orthodontic bracket described in Patent Document 2 also has a problem that it is difficult to mount it accurately on the tooth surface.
- the object of the present invention is to provide a new orthodontic bracket.
- the present invention provides a new orthodontic bracket that is easy to attach to the tooth surface, does not easily leave eating crabs, and therefore does not cause tooth decay, and does not require ligation with poor workability.
- the purpose is to provide.
- the present invention is able to apply a three-dimensional rotational force to the tooth with the central portion of the bracket as a rotation center point by mounting, and the orthodontic bracket that can easily adjust the rotational stress.
- the purpose is to provide.
- the present invention uses a material having the same color as that of the tooth, so that it has excellent aesthetics and high durability, and when the bracket is peeled off, the adhesive does not remain on the surface of the tooth.
- the purpose of this is to provide a bracket.
- the orthodontic bracket of the present invention has a substrate surface that adheres to the tooth surface, and an archwire holding portion that holds the archwire with the substrate surface as a bottom surface, and is connected to the individual teeth by the archwire.
- An orthodontic bracket for correcting stress by continuously applying stress to the quality The orthodontic bracket has a substantially semi-cylindrical shape with a cross-sectional shape orthogonal to the archwire spanning direction with the substrate surface bonded to the tooth surface as the bottom surface, and the archwire is inserted therethrough. It has a plurality of arch wire insertion holes for connecting adjacent orthodontic brackets with arch wires.
- the cross-sectional shape of the archwire insertion hole is preferably a square, and when three or more archwire insertion holes are formed in the orthodontic bracket, more effective three-dimensional rotation is achieved. Torque can be applied to the teeth.
- the arch wire insertion hole formed in the center is a bracket in the cross section of the bracket, rather than the arch wire insertion holes formed on both sides.
- the shape of the cross-section perpendicular to the direction in which the archwire of the bracket is stretched is substantially kamaboko.
- the side that adheres to the tooth surface retains an adhesive for adhering the bracket to the tooth surface, so that the hypothesis is hypothesized below the bracket and on the same plane as the cross section. It is curved on the top with a curvature radius R 2 from the center point.
- the orthodontic bracket of the present invention preferably has at least one adhesive-filled groove substantially parallel to the archwire insertion hole on the substrate surface to be bonded to the tooth surface of the bracket.
- the width of the bracket in the gum direction is narrower than the width in the tooth tip direction.
- an end portion of the bracket that is perpendicular to the direction in which the archwire is stretched is formed at a substantially right angle with respect to the substrate surface to be bonded to the tooth surface of the bracket.
- the orthodontic bracket of the present invention is usually formed from a sintered body of an inorganic material.
- Such an orthodontic bracket of the present invention does not require ligation work. Therefore, in the orthodontic bracket of the present invention, the arch wire is fixed to the bracket by being inserted into the arch wire insertion hole, and the arch wire is ligated to the orthodontic bracket by some ligating means. It is not fixed.
- an orthodontic bracket that enables more effective three-dimensional movement, particularly effective movement in the surface of the tooth surface. According to the orthodontic bracket of the present invention, More accurate orthodontic correction is possible. Moreover, since the orthodontic bracket of the present invention does not need to ligate the arch wire that has been handed over, the orthodontic orthodontic can be achieved by applying a force that is weaker than the force applied to the teeth by the conventional orthodontic bracket. it can. Furthermore, since the orthodontic bracket of the present invention has a simplified shape, there is little deposition of plaque (food residue) on the bracket. Therefore, the orthodontic bracket of the present invention is excellent also in oral hygiene.
- the orthodontic bracket of the present invention has a color tone essentially the same as that of the tooth surface, is excellent in aesthetics, is hard, and is excellent in durability.
- the orthodontic bracket of the present invention has good adhesiveness to the tooth surface, and the adhesive does not remain on the tooth surface when the orthodontic bracket is peeled off. Are all held on the back surface (substrate surface) of the orthodontic bracket to be removed and peeled off.
- FIG. 1 is a perspective view of an orthodontic bracket of the present invention.
- FIG. 2A is a top view of the orthodontic bracket
- FIG. 2B is a side view
- FIG. 2C is a back view.
- 3 is an XX cross-sectional view of the orthodontic bracket of the present invention shown in FIG.
- FIG. 4 is a diagram schematically showing the positional relationship of the plurality of fitting holes formed in the orthodontic bracket of the present invention.
- FIG. 5 is a schematic diagram showing an example of the form of the adhesive recess formed on the substrate surface of the orthodontic bracket of the present invention.
- FIG. 6 is a side view showing another aspect of the orthodontic bracket of the present invention.
- FIG. 7 shows an example of a usage pattern of the orthodontic bracket of the present invention.
- the orthodontic bracket is bonded to the tooth surface, and an arch wire is inserted into the orthodontic bracket.
- FIG. 8 shows that the arch wire insertion hole of the orthodontic bracket of the present invention is inclined so that the heights of both end portions of the insertion hole from the board surface (or tooth surface) of the bracket are different.
- FIG. 9 is a YY cross-sectional view of the orthodontic bracket in FIG.
- FIG. 10 is a perspective view showing an example of a conventional bracket.
- FIG. 11 is a cross-sectional view showing a state in which an arch wire is ligated using the bracket shown in FIG.
- FIG. 12 is a perspective view showing another aspect of a conventional orthodontic bracket.
- FIG. 13 is a plan view showing another aspect of the conventional orthodontic bracket shown in FIG. 12, in which the slot hole is inclined so that the penetrating direction of the slot hole is displaced from the forming direction of the base portion. It is shown.
- an orthodontic bracket 10 includes a substrate surface 11 that adheres to a tooth surface, and an archwire holding portion 13 having a plurality of fitting holes for holding the archwire. (See also FIG. 3).
- the orthodontic bracket 10 of the present invention does not expose the archwire, and is inserted and stretched into a plurality of fitting holes provided in the bracket 10.
- FIG. 1 shows an embodiment in which three fitting holes are formed. In the present invention, two or more fitting holes may be used. However, in order to apply a three-dimensional stress to a tooth to be corrected during orthodontic correction, as shown in FIG. It is preferable to arrange the fitting holes 16 symmetrically.
- the orthodontic bracket 10 of the present invention has a substantially kamaboko shape as shown in FIG.
- the bracket 10 is apparent from the perspective view shown in FIG. 1 in detail, the top view shown in FIG. 2 (a), the side view shown in (b), and the back view shown in (c).
- the width a in the gums direction has a substantially semi-cylindrical shape slightly shorter than the width b in the tooth tip direction.
- the upper surface of the orthodontic bracket 10 of the present invention is not exactly one arc shape, but is connected to a plurality of planes or arcs as a whole. And has a generally kamaboko shape.
- FIG. 3 schematically shows an enlarged XX cross-section (a cross-section perpendicular to the archwire stretching direction with the substrate surface bonded to the tooth surface as the bottom surface) in FIGS. 1 and 2A.
- the orthodontic bracket 10 of the present invention has the virtual center point A with the cross section of the bracket 10 as the virtual center point A at the center of the site where the cross section of the tooth is bonded.
- Planes 31, 32, 33, so as to contact at least four points, preferably six points P 1 , P 2 , P 3 , P 4 , P 5 , P 6 , with a virtual arc 30 having a radius R 1 centered on 34 and 35 are connected to form an angular kamaboko shape.
- it is desirable that the joined portions of the flat plates 31, 32, 33, 34, and 35 are chamfered so that the square-shaped kamaboko type is closer to a semicircular kamaboko type.
- the outer peripheral surface of the orthodontic bracket of the present invention may coincide with the virtual arc 30 having the radius R 1 .
- the radius R 1 forming the virtual arc 30 can be selected as appropriate depending on the size of the tooth to which the bracket 10 is attached. It is about 3mm.
- the orthodontic bracket 10 of the present invention in a kamaboko shape that approximates the virtual arc 30, food baskets and the like are hardly left on the bracket 10, and the aesthetics of the bracket 10 are also good. Become.
- the orthodontic bracket of the present invention has a plurality of insertion holes.
- the number of the fitting holes needs to be two or more, and preferably three or more. However, it is extremely difficult to manufacture more than four fitting holes, and even if more than three fitting holes are formed, the effect on orthodontics is not improved.
- the number of fitting holes provided in the orthodontic bracket 10 of the present invention is three. These insertion holes are formed so as to pass between both end portions 38, 38 of the orthodontic bracket 10 of the present invention, and the plurality of insertion holes are linear and basically of the archwire. They are formed parallel to each other in the stretching direction.
- the sectional shape of the fitting holes 12, 14, and 16 need not necessarily be square. Alternatively, it may be in the form of a circle, a polygon, a rhombus, or the like. However, when an archwire having a square cross-sectional shape is used to give directionality to the stress exerted on the tooth, the directionality can be further increased by making the cross-sectional shape of the fitting holes 12, 14, 16 square. There is an advantage that it becomes easy to put out.
- the center point of the through hole 12 located at the center is usually 1.0 to 2.0 than the virtual reference line 40.
- mm preferably 1.2 to 1.7 mm above (ie, k 1 in FIG. 4 is usually 1.0 to 2.0 mm, preferably 1.2 to 1.7 mm), and the fitting holes on both sides of the fitting hole 12
- the height of the center point 14, 16 from the virtual reference line 40 is usually 0.8 to 1.8 mm, preferably 1.0 to 1.5 mm (ie, k 2 in FIG. 4 is usually 0.8 to 1.8 mm, preferably 1.0 to 1.5 mm). mm).
- the fitting hole 12 located in the center is about 1/4 to 3 ⁇ 4 of the height h of the fitting hole from the virtual reference line 40, rather than the fitting holes 14 and 16 formed on both sides. It is located above.
- the position of the fitting hole 12 located at the center is increased, the main archwire is inserted into the fitting hole 12, and the archwire is inserted into the fitting holes 14 and 16 around this.
- a three-dimensional torque or stress can be applied to the tooth.
- the tension for example, when viewing the teeth as shown in FIG. 7
- Torque or stress can be applied.
- the entire orthodontic bracket can be made small and gentle, making it harder to eat.
- the archwire fitting holes 12, 14, and 16 are provided on the board surface (or teeth) of the bracket at both ends of the fitting holes. It may be formed so as to be inclined so that the height from the surface is different. In other words, the archwire insertion holes 12, 14, 16 may be formed not parallel to the substrate surface or the tooth surface, and in other words, the insertion holes 12, 14, 16 are formed. When parallelly moving downward (board surface side) and the end of the fitting hole comes into contact with the board surface or tooth surface for the first time, an acute angle is formed by the fitting hole and the board surface or tooth surface. Arch wire insertion holes 12, 14, 16 may be formed. FIG.
- FIG. 9 is a cross-sectional view of the arch wire insertion hole 12 formed in such an inclination, and is formed by a straight line 72 on the lower side of the insertion hole 12 and a straight line 70 representing a substrate surface or a tooth surface. The corner becomes an acute angle.
- the arch wire is inserted into the arch wire insertion holes 12, 14 or 16 formed at different distances from the tooth surface at both ends of the insertion hole, and tension is applied to the arch wire.
- a three-dimensional torque or stress can be applied in the front-rear direction of the tooth.
- a protruding tooth can be corrected.
- the orthodontic bracket of the present invention there are a plurality of archwire insertion holes, but the inclination of the plurality of insertion holes (the surface of the substrate or the tooth surface by translating each of the insertion holes)
- the acute angle formed when in contact with may be the same or different. If the aspect of inclination is the same, the torque in the front-rear direction can be uniformly applied to the tooth. On the other hand, if the aspect of inclination is different, the torque in the front-rear direction differs depending on the position of the tooth. Torque can be applied.
- the size of such an insertion hole varies depending on the archwire used, but usually the height h is about 0.5 to 0.8 mm and the width w is about 0.5 to 0.7 mm. Even when the shape of the fitting hole is changed, the size of the fitting hole can be selected with reference to the above size.
- the virtual reference line 40 employed in the above description corresponds to the surface where the points P 1 and P 6, which are both end portions, contact when the orthodontic bracket is placed on a flat surface as shown in FIG. This is a virtual line (a line that is hypothesized by connecting both end portions).
- the orthodontic bracket of the present invention has at least one adhesive-filled groove for holding the adhesive in order to adhere the bracket to the tooth surface on the substrate surface that adheres to the tooth surface.
- three adhesive filling grooves 41, 43, 45 are formed on the substrate surface 11 of the orthodontic bracket of the present invention.
- an overhang 48 is formed on the periphery of the opening 44 toward the inside of the opening.
- the adhesive filling grooves 41, 43, 45 are preferably formed such that the opening 44 is narrower than the bottom 46 of the adhesive filling groove.
- the adhesive is filled in the adhesive filling grooves 41, 43, 45 so as to be somewhat excessive.
- the substrate surface 11 of the orthodontic bracket of the present invention is not flat, and in the cross section of the bracket, the substrate surface 11 that adheres to the tooth surface is a bottom surface and is orthogonal to the archwire spanning direction.
- a side to be bonded to the tooth is curved in an arc shape along a radius R 2 from a virtual center B hypothesized below the bracket and on the same plane as the cross section. This is because the tooth surface is not formed in a straight line, and a space in which the adhesive spreads to bond the bracket to the tooth surface is formed.
- the radius R 2 at this time is usually 5 to 20 mm, preferably 10 to 15 mm.
- the orthodontic bracket of the present invention since the orthodontic bracket of the present invention has the archwire fitted in the fitting holes 12, 14, and 16 formed in the bracket, the archwire is fitted in the fitting holes 12, 14, and 16. It is fixed by the inner peripheral wall surface. Therefore, it is not necessary to ligate the archwire as in the prior art.
- the adhesive filling grooves 41, 43, 45 are filled with a slightly larger amount of adhesive, and then the entire back surface of the bracket is adhesive. Press the bracket against the tooth surface so that the By pressing in this way, the adhesive filled in the adhesive filling groove is supplied between the back surface of the orthodontic bracket formed in an arc shape and the tooth, and this bracket is attached to the tooth. Glue strongly.
- the overhang 48 formed to protrude toward the inner ring side of the opening has an anchoring effect that acts so that the adhesive in the adhesive filling grooves 41, 43, 45 does not fall off.
- the adhesive strength of the adhesive to the tooth surface is lowered and the orthodontic bracket is removed. Also at this time, due to the anchoring effect of the overhang 48, the adhesive does not remain on the tooth surface but is removed together with the orthodontic bracket, so that the adhesive hardly remains on the tooth surface.
- the adhesive filling grooves 41, 43, 45 formed on the substrate surface side of the orthodontic bracket according to the present invention are filled with an adhesive slightly larger than the amount that can be stored, and the tooth surface
- the orthodontic bracket is bonded to the tooth surface by applying the adhesive to the gap between the orthodontic bracket and the tooth surface.
- the adhesive used here a general adhesive which is not harmful to the human body used for bonding the orthodontic bracket can be used.
- each orthodontic bracket of the present invention is bonded to the surface of each tooth, the archwire is fitted into the insertion hole formed in the orthodontic bracket of the present invention, and each orthodontic bracket Are connected with an archwire fitted.
- the orthodontic bracket of the present invention has a plurality of, preferably three, through-holes. After the main arch wire 50 is fitted into the central through-hole 12, the fitting is carried out as necessary. Arch wires 51 and 52 are fitted into the fitting holes 14 and 16 on both sides of the through hole 12 (FIG. 7).
- main archwire 50, the archwire 51, and the archwire 52 may be the same or different.
- the main arch wire 50 as the center, the direction in which the tension of the arch wire 51 is applied and the direction in which the tension of the arch wire 52 is applied are reversed, so that a high rotational torque can be applied to the teeth.
- the main arch wire 50 can apply stress for moving the teeth back and forth.
- the tension directions of the archwire 51 and the archwire 52 are reversed, a rotational torque can be applied to the teeth. That is, teeth can be corrected three-dimensionally by changing the characteristics of the three archwires or the direction of the tension.
- the arch wire insertion holes are inclined so that the heights of the both ends of the insertion holes from the substrate surface (or tooth surface) of the orthodontic bracket of the present invention are different. It may be formed. Then, by applying tension to the archwire inserted into the insertion hole formed in this way, it is possible to apply torque or stress for moving the tooth back and forth more effectively.
- the rotation torque applied to the teeth can be freely controlled by adjusting the archwire 51 and the archwire 52. Further, by adjusting the main archwire 50 and adjusting the inclination of the archwire insertion hole, the tooth can be corrected back and forth with a suitable strength. For this reason, according to the orthodontic bracket of the present invention, orthodontic can be performed while effectively preventing inflammation or necrosis of the root due to contact between adjacent roots.
- the orthodontic bracket of the present invention can be manufactured by sintering an inorganic material.
- a fitting tool for forming a fitting hole is attached and sintered, the fitting hole can be formed with high accuracy in the sintering.
- the color tone of the orthodontic bracket formed using zirconium oxide in this way approximates the color tone of the tooth, the bracket can be made very aesthetic.
- the sintered body of zirconium oxide has a very high strength, and the bracket is not damaged during the orthodontic treatment.
- bracket angulation can be corrected with one type of bracket.
- both ends of the orthodontic bracket are vertically rounded up as shown in FIG. This is because it is necessary to pick up the bracket with tweezers when bonding the bracket, and it is difficult to pick up with tweezers if both ends are tapered.
- vacuum tweezers or a releasable bonding jig is used instead of tweezers, it is not necessary to make both ends vertically rounded up. For example, as shown in FIG. May be attached.
- the orthodontic bracket of the present invention can be variously modified within a range not contrary to its purpose.
- the orthodontic bracket of the present invention does not require ligation of an arch wire, so that it can be easily mounted on the tooth surface, and glutinous or the like does not easily remain on the bracket, which is unlikely to cause dental caries.
- the orthodontic bracket of the present invention has a plurality of insertion holes and can be provided with a plurality of archwires, so that each archwire type, tension to be applied, inclination of the insertion holes, etc.
- the orthodontic bracket of the present invention has a plurality of insertion holes and can be provided with a plurality of archwires, so that each archwire type, tension to be applied, inclination of the insertion holes, etc.
- the orthodontic bracket of the present invention is formed of a sintered metal oxide, preferably a sintered zirconium oxide, and has excellent aesthetics and high durability.
- a loose recess as a whole is formed on the adhesive surface of the bracket with the tooth, and the bracket has a groove-shaped adhesive filling groove. Since the opening of this adhesive filling groove has a shape protruding inside the opening, the bonded bracket does not fall out of the tooth, and the adhesive remains on the tooth surface when the bracket is removed. The adhesive can be removed along with the bracket without.
- the orthodontic bracket of the present invention is expected to be able to apply various movements to the teeth in three dimensions, thereby enabling more effective and more accurate orthodontics.
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Abstract
Description
(1)複数の歯牙の表面141Aに歯列矯正用のブラケット143を接着する。
(2)このブラケット143に形成された凹部145にアーチワイヤ146を嵌挿して、ブラケット143間にアーチワイヤ146を差し渡しする。
(3)このアーチワイヤ146の有する弾性力を歯牙に作用させる。
該歯列矯正用ブラケットは、歯質表面に接着する基板面を底面としてアーチワイヤの張り渡し方向に対して直行する断面の形状が略かまぼこ型であるとともに、該アーチワイヤを嵌通させて、隣接する歯列矯正用ブラケットを、アーチワイヤで連接するためのアーチワイヤ嵌通孔を複数個有することを特徴としている。
11・・・基板面
12・・・嵌通孔
13・・・アーチワイヤ保持部
14・・・嵌通孔
16・・・嵌通孔
30・・・仮想円弧
31,32,33,34,35・・・平面
38・・・両端部
40・・・仮想基準線
41・・・接着剤充填溝
43・・・接着剤充填溝
45・・・接着剤充填溝
44・・・開口部
46・・・接着剤充填溝の底部
48・・・張り出し
50・・・メインアーチワイヤ
51・・・アーチワイヤ
52・・・アーチワイヤ
60・・・歯牙
65・・・歯茎
70・・・基板面または歯質表面を表す直線
72・・・嵌通孔12の下側の直線
141A・・・歯牙の表面
143・・・ブラケット
145・・・凹部
146・・・アーチワイヤ
150・・・結紮用のワイヤー
252・・・スロット孔
255・・・ベース部
Claims (12)
- 歯質表面に接着する基板面と、該基板面を底面としてアーチワイヤを保持するアーチワイヤ保持部とを有し、該アーチワイヤで連接されて個々の歯質に応力を継続的に付与して歯列を矯正する歯列矯正用ブラケットであって、
該歯列矯正用ブラケットは、歯質表面に接着する基板面を底面としてアーチワイヤの張り渡し方向に対して直行する断面の形状が略かまぼこ型であるとともに、該アーチワイヤを嵌通させて、隣接する歯列矯正用ブラケットを、アーチワイヤで連接するためのアーチワイヤ嵌通孔を複数個有することを特徴とする歯列矯正用ブラケット。 - 前記アーチワイヤ嵌通孔の断面形状が方形であり、該アーチワイヤ嵌通孔が、前記歯列矯正用ブラケットに3個以上形成されていることを特徴とする請求項第1項に記載の歯列矯正用ブラケット。
- 前記アーチワイヤ嵌通孔が、一つのブラケットに3個形成されており、中心に形成されたアーチワイヤ嵌通孔が、両脇に形成されたアーチワイヤ嵌通孔よりも、前記ブラケットの断面におけるブラケットの両側端部を結んで仮想される仮想基準線からの高さが高い位置に形成されていることを特徴とする請求項第1項または第2項に記載の歯列矯正用ブラケット。
- 前記ブラケットの断面の形状が、歯質の前記断面と接着する部位の中心を仮想中心点とする、R1を半径とする、前記断面と同一平面上に存在する仮想半円上に少なくとも四カ所の接触点を有する、略かまぼこ状の形状であることを特徴とする請求項第1項に記載の歯列矯正用ブラケット。
- 前記ブラケットの断面の形状が、歯質の前記断面と接着する部位の中心を仮想中心点とする、R1を半径とする、前記断面と同一平面上に存在する仮想半円上に少なくとも六カ所の接触点を有する、略かまぼこ状の形状であることを特徴とする請求項第4項に記載の歯列矯正用ブラケット。
- 前記ブラケットの断面において、歯質表面と接着する辺が、前記ブラケットの下方かつ前記断面と同一平面上に仮想される仮想中心点から半径R2の曲率で上部に湾曲していることを特徴とする請求項第5項記載の歯列矯正用ブラケット。
- 前記アーチワイヤ嵌通孔が、該嵌通孔の両端部の前記基板面からの高さが異なるように傾斜させて形成されていることを特徴とする請求項第1項記載の歯列矯正用ブラケット。
- 前記ブラケットの歯質表面と接着する基板面に、前記アーチワイヤ嵌通孔と略平行に少なくとも1条の接着剤充填溝を有することを特徴とする請求項第1項に記載の歯列矯正用ブラケット。
- 前記ブラケットの歯茎方向における幅が歯先方向の幅より狭く形成されていることを特徴とする請求項第1項に記載の歯列矯正用ブラケット。
- 前記ブラケットのアーチワイヤの張設方向と直行する端部が、ブラケットの歯質表面と接着する基板面に対して略直角に形成されていることを特徴とする請求項第1項に記載の歯列矯正用ブラケット。
- 前記ブラケットが、無機材料の焼結体から形成されていることを特徴とする請求項第1項に記載の歯列矯正用ブラケット。
- 前記アーチワイヤが、前記アーチワイヤ嵌通孔に嵌通されることにより前記ブラケットに固定されており、該アーチワイヤは結紮手段によっては歯列矯正用ブラケットに結紮固定されていないことを特徴とする請求項第1項に記載の歯列矯正用ブラケット。
Priority Applications (4)
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EP10764464.3A EP2420199B1 (en) | 2009-04-16 | 2010-04-14 | Orthodontic bracket |
US13/258,290 US9351811B2 (en) | 2009-04-16 | 2010-04-14 | Orthodontic bracket |
KR1020117017241A KR101252964B1 (ko) | 2009-04-16 | 2010-04-14 | 치열 교정용 브래킷 |
JP2011509308A JP5345208B2 (ja) | 2009-04-16 | 2010-04-14 | 歯列矯正用ブラケット |
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EP (1) | EP2420199B1 (ja) |
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JP2019517318A (ja) * | 2016-06-02 | 2019-06-24 | ヨン−ミン ジョーYong−min Jo | 歯列矯正装置用の1ピースセルフライゲーションブラケット |
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US20110212408A1 (en) * | 2009-12-15 | 2011-09-01 | Kalange John T | Buccal tube with square or rectangular auxiliary slot |
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KR101479004B1 (ko) * | 2014-06-02 | 2015-01-05 | 문승수 | 치열교정용 미니 브라켓 및 치열교정세트 |
CN104970889B (zh) * | 2015-04-23 | 2017-07-28 | 赵喜林 | 一种牙科正畸治疗托槽 |
KR102118302B1 (ko) | 2020-05-08 | 2020-06-02 | 주식회사 지앤드아이 | 자가 결찰 치열 교정 브래킷 조립체 |
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KR101252964B1 (ko) | 2013-04-15 |
EP2420199A4 (en) | 2014-07-30 |
JP5345208B2 (ja) | 2013-11-20 |
US20120009538A1 (en) | 2012-01-12 |
KR20110117660A (ko) | 2011-10-27 |
EP2420199A1 (en) | 2012-02-22 |
JPWO2010119880A1 (ja) | 2012-10-22 |
US9351811B2 (en) | 2016-05-31 |
EP2420199B1 (en) | 2016-09-07 |
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