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WO2018135569A1 - Bracket orthodontique et dispositif de serrage de positionnement de bracket - Google Patents

Bracket orthodontique et dispositif de serrage de positionnement de bracket Download PDF

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Publication number
WO2018135569A1
WO2018135569A1 PCT/JP2018/001350 JP2018001350W WO2018135569A1 WO 2018135569 A1 WO2018135569 A1 WO 2018135569A1 JP 2018001350 W JP2018001350 W JP 2018001350W WO 2018135569 A1 WO2018135569 A1 WO 2018135569A1
Authority
WO
WIPO (PCT)
Prior art keywords
shutter
slot
bracket
wire
guide wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/001350
Other languages
English (en)
Japanese (ja)
Inventor
康寛 斉宮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Okada Medical Supply Co Ltd
Original Assignee
Okada Medical Supply Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Okada Medical Supply Co Ltd filed Critical Okada Medical Supply Co Ltd
Publication of WO2018135569A1 publication Critical patent/WO2018135569A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • A61C7/287—Sliding locks
    • 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
    • A61C7/28—Securing arch wire to bracket

Definitions

  • the present invention relates to an orthodontic bracket and a bracket positioning jig.
  • the teeth are arranged by applying three-dimensional correction force such as front / rear / left / right, inclination, and rotation to the tooth to be moved.
  • a bracket is fixed to the teeth, a wire or the like is attached between the reference tooth bracket and the tooth bracket to be moved, and the wire is tightened. By adjusting the way the wires are routed and tightened, the corrective force is applied in the desired direction.
  • Brackets for attaching wires are provided on the bracket.
  • the wire is ligated with rubber or the like while attached to the slot, and is fixed so as not to be displaced with respect to the bracket.
  • As a type of bracket there is also a self-ligation type that does not require ligation with rubber or the like.
  • a shutter is provided at an opening of a slot to which a wire is attached so as to be opened and closed. By closing the shutter with the wire attached, the opening of the slot is closed to prevent the wire from coming off. Further, the opening is opened by opening the shutter so that the wire can be easily removed and replaced (see, for example, Patent Documents 1 to 4).
  • a bracket of a type that fixes a wire attached to a slot with a clip see, for example, Patent Document 5
  • a hook is provided in the vicinity of the opening of the slot, and the wire is not pulled out by overcoming the hook and inserting the wire.
  • a bracket is also considered (see, for example, Patent Document 6).
  • the self-ligation type has less frictional force between the wire attached to the slot and the bracket, and the teeth can be moved with a weak orthodontic force.
  • the wire depending on the size of the wire, there may be an unnecessarily large gap between the slot and the wire, and depending on the position of the bracket, the wire may not be correctly fitted into the slot.
  • the object of the present invention is to perform an accurate correction using a self-ligation type orthodontic bracket.
  • One aspect of the present invention is an orthodontic bracket that has a slot for attaching a wire and an introduction port connected to the slot, and can be moved back and forth between the slot and the introduction port of the bracket body. And a provided shutter.
  • the bracket body has an outer guide wall that constitutes a slot and an introduction port.
  • the shutter is inserted into a through hole provided in the outer guide wall. The shutter is provided so that when the shutter is closed and the slot is covered, the front end of the shutter protrudes from the through hole toward the slot, and then the front end is displaced in the first direction from the inlet side toward the slot. Yes.
  • the tip of the shutter protrudes and operates to cover the slot while pressing the wire from above.
  • the wire is pressed by the front end portion of the shutter and is securely fitted into the slot.
  • the outer guide wall is provided from the tapered portion to the edge of the through hole so that the opening size of the through hole in the first direction increases from the slot, and supports the shutter when the shutter is closed. And a support part. Accordingly, the shutter is provided so as to be swingable with the support portion as a fulcrum, and the wire can be pressed with the rear end portion of the shutter as a power point and the front end portion as an action point.
  • the bracket body may have an inner guide wall facing the outer guide wall.
  • the inner guide wall may have a recess that fits the front end of the shutter at a position facing the through hole. Accordingly, the shutter can be fixed by closing the shutter and fitting the tip portion into the recess.
  • the tip of the shutter may have a fixed piece and an engaging piece.
  • the fixed piece engages with the recess
  • the protrusion provided on the engagement piece engages with the engagement hole provided in the recess.
  • the inner dimension of the concave portion in the first direction is equal to the thickness of the fixed piece in the first direction when the shutter is closed, and the shutter is closed and the fixed piece is engaged with the concave portion.
  • the rear end portion may be supported by the outer guide wall. Accordingly, when the shutter is closed, the fixed piece and the concave portion of the shutter are firmly fitted and fixed, and the rear end portion of the shutter is also supported by the outer guide wall, and the shutter is supported by the inner guide wall and the outer guide wall. It is possible to pass between and securely fix.
  • the engagement hole may be provided so as to penetrate in the first direction.
  • the protrusion can be pushed from the outside of the engagement hole, and the shutter can be easily opened by releasing the engagement between the protrusion and the engagement hole.
  • the bracket may further include a buffer member provided between the wire and the inner wall of the slot when the wire is attached to the slot.
  • the gap between the wire and the inner wall of the slot is filled by the buffer member, and the gap between the wire and the slot is filled by the buffer property of the buffer member, so that the deviation between the wire and the bracket can be appropriately suppressed.
  • the bracket may further include a base portion for fixing the bracket body to the teeth at a predetermined angle. Thereby, a bracket can be fixed corresponding to various tooth angles.
  • One aspect of the present invention is a bracket positioning jig for positioning the bracket on a tooth, and includes a fixed end portion and a support arm.
  • the fixed end is inserted into the slot and is fixed to the bracket body by closing the shutter.
  • the support arm is provided to extend from the fixed end and is supported with respect to the teeth. According to such a configuration, the positional relationship between the bracket and the support arm can be determined by inserting the fixed end portion into the slot of the bracket and closing and fixing the shutter. Furthermore, by supporting the support arm with respect to the teeth, the positional relationship between the teeth and the bracket can be accurately determined.
  • (A)-(c) is a perspective view which illustrates the structure of the bracket which concerns on this embodiment.
  • (A)-(c) is sectional drawing which illustrates the structure of the bracket which concerns on this embodiment.
  • (A)-(d) is sectional drawing explaining the pressing operation of the wire by a shutter.
  • (A) And (b) is sectional drawing illustrated about the fixing mechanism of a shutter.
  • (A) And (b) is sectional drawing which illustrates a buffer member.
  • (A) And (b) is a schematic diagram which illustrates the jig for bracket positioning. It is a schematic diagram which shows the usage example of the jig for bracket positioning.
  • (A) And (b) is a schematic diagram which shows the example (the 1) of another bracket. It is sectional drawing which shows the example (the 2) of another bracket.
  • Bracket structure 1A to 1C are perspective views illustrating the configuration of a bracket according to this embodiment.
  • 2A to 2C are cross-sectional views illustrating the configuration of the bracket according to this embodiment.
  • FIGS. 1 and 2 shows a state where the shutter 20 is open, (b) shows a state where the shutter 20 is being closed, and (c) shows that the shutter 20 is closed. The status is indicated.
  • This embodiment is an orthodontic bracket 1.
  • This bracket 1 is an instrument attached to the front side or the back side of a tooth.
  • a wire W for applying an orthodontic force to the teeth is attached to the bracket 1.
  • the bracket 1 of this embodiment is a self-ligation type that can fix the wire W to the bracket 1 without using a ligation tool such as rubber.
  • the bracket 1 of the present embodiment includes a bracket body 10 and a shutter 20.
  • the bracket body 10 has a slot 101 for attaching the wire W and an introduction port 102 connected to the slot 101.
  • the direction connecting the slot 101 and the introduction port 102 is the first direction D1 and one of the directions orthogonal to the first direction D1 (
  • the direction also referred to as the length direction of the slot 101
  • the direction orthogonal to the second direction D2, the first direction D1, and the second direction D2 (also referred to as the width direction of the slot 101).
  • the bracket body 10 has an outer guide wall 11 that constitutes the slot 101 and the introduction port 102, and an inner guide wall 12 that faces the outer guide wall 11.
  • a slot 101 and an introduction port 102 are provided between the outer guide wall 11 and the inner guide wall 12.
  • the cross-sectional shape of the slot 101 viewed in the second direction D2 is, for example, a rectangle.
  • a bottom portion 13 is provided between the outer guide wall 11 and the inner guide wall 12.
  • the direction of the introduction port 102 communicating with the slot 101 is preferably directed to the tooth tip side when the bracket 1 is attached to the tooth.
  • the introduction port 102 faces the front end side of the tooth, so that it is easy to secure a space for inserting the wire W into the slot 101. If the wire W is inserted from the tip side of the tooth, the wire W can be easily inserted into the slot 101 without being affected by the dentition.
  • the direction of the introduction port 102 may be a direction orthogonal to the direction in which the teeth extend.
  • the outer guide wall 11 and the inner guide wall 12 may be provided with hooks F as required. Even if it is a self-ligation type bracket 1, a ligation tool such as rubber may be hung on the hook F, or rubber or other instruments may be attached to the hook F to give correction force from other than the wire W. Good.
  • the bracket 1 includes a base portion 30.
  • the base part 30 is a member for fixing the bracket body 10 at a predetermined angle with respect to the teeth.
  • An attachment surface 30a to a tooth is provided on one side of the base portion 30.
  • the bracket body 10 is provided on the other side of the base portion 30.
  • the attachment surface 30a of the base part 30 is provided at a predetermined angle with respect to the first direction D1.
  • bracket 1 for example, titanium-based materials such as pure titanium and titanium alloys, stainless steel alloys, and the like are used as materials excellent in biocompatibility.
  • the bracket body 10 and the base part 30 may be provided integrally, or the bracket body 10 and the base part 30 may be separated and connected to each other at a predetermined angle. .
  • the shutter 20 is provided between the slot 101 of the bracket body 10 and the introduction port 102 so as to advance and retreat. That is, the shutter 20 is inserted into a through hole 111 provided in the outer guide wall 11 and can be taken in and out through the through hole 111.
  • the distal end portion 21 of the shutter 20 protrudes from the through hole 111 toward the slot 101, and then the distal end portion 21 faces from the introduction port 102 side toward the slot 101 side. It is provided to be displaced.
  • the angle of the shutter 20 can be easily changed from obliquely downward to a direction along the third direction D3.
  • the shutter 20 is taken in and out along the through-hole 111 in a state where the angle of the shutter 20 is along the third direction D3.
  • the tip 21 of the shutter 20 is fitted in a recess 121 provided in the inner guide wall 12.
  • the shutter 20 is passed between the inner guide wall 12 and the outer guide wall 11 and is disposed so as to block between the slot 101 and the introduction port 102.
  • the taper part 111a is provided in the part of the through hole 111 of the outer guide wall 11.
  • the tapered portion 111 a is provided with an inclination such that the opening size of the through hole 111 in the first direction D ⁇ b> 1 increases as the distance from the slot 101 increases.
  • the outer guide wall 11 is provided with a support portion 111 b that supports the shutter 20 from the tapered portion 111 a to the edge of the through hole 111. Therefore, the shutter 20 inserted into the through hole 111 is provided so as to be swingable around the support portion 111b as a fulcrum within the range of the opening of the tapered portion 111a. That is, when the shutter 20 is open, the shutter 20 can swing and can advance and retreat in the third direction D3.
  • the front end portion 21 of the shutter 20 is fitted into the recess 121 of the inner guide wall 12, and the rear end portion 22 of the shutter 20 is between the support portion 111 b and the inner wall of the through hole 111. Supported.
  • the shutter 20 can be easily moved when the shutter 20 is open, and a reliable fixed state can be maintained when the shutter 20 is closed. Further, since the shutter 20 is provided so as to be able to advance and retreat along the through hole 111 of the outer guide wall 11, the shutter 20 can be easily opened and closed regardless of the position and orientation of the teeth.
  • FIG. 3A is cross-sectional views for explaining a wire pressing operation by the shutter.
  • the wire W is fitted into the slot 101 from the introduction port 102 with the shutter 20 opened.
  • Various types of wires W are prepared.
  • a wire W having a rectangular cross section is used.
  • the wire W is not necessarily arranged at a deep position of the slot 101.
  • FIG. 3A shows a state where the wire W is fitted only from the introduction port 102 to the middle of the slot 101.
  • the operation of closing the shutter 20 is started.
  • the shutter 20 is inclined using the inclination of the tapered portion 111a, and the shutter 20 is slid toward the slot 101 in this state.
  • the distal end portion 21 protrudes from the through hole 111 and hangs on the wire W.
  • the rear end 22 of the shutter 20 is pushed up.
  • the shutter 20 can swing about the support portion 111b as a fulcrum, and the tip portion 21 can be pushed down.
  • the wire W is pushed in the depth direction of the slot 101 by pushing down the tip portion 21.
  • the wire W is pushed into the slot 101 by the lever principle with the support portion 111b as a fulcrum, the rear end portion 22 as a force point, and the tip end portion 21 as an action point.
  • the shutter 20 is slid in the third direction D3 while the shutter 20 is swung to a position along the third direction D3.
  • the shutter 20 is passed between the outer guide wall 11 and the inner guide wall 12.
  • the position of the shutter 20 is fixed by the front end 21 of the shutter 20 being fitted into the recess 121 of the inner guide wall 12.
  • the shutter 20 functions as an upper lid when the wire W is fitted in the slot 101.
  • FIG. 4A and 4B are cross-sectional views illustrating the shutter fixing mechanism.
  • 4A shows a sectional view of the fixed piece 211
  • FIG. 4B shows a sectional view of the engaging piece 212.
  • the distal end portion 21 of the shutter 20 includes a fixed piece 211 shown in FIG. 4A and an engaging piece 212 shown in FIG.
  • the fixing pieces 211 are provided on both the left and right sides of the tip portion 21, and the engaging pieces 212 are provided between the left and right fixing pieces 211 in the center of the tip portion 21.
  • the fixed piece 211 and the engaging piece 212 are configured such that the tip portion 21 is divided by two slits provided from the tip of the shutter 20 to the middle.
  • the fixed piece 211 is fitted into the recess 121 of the inner guide wall 12. That is, the thickness of the fixed piece 211 (the thickness in the first direction D1 when the shutter 20 is closed) is substantially equal to the inner dimension of the recess 121 in the first direction D1. The thickness of the fixed piece 211 is equal from the front end portion 21 to the rear end portion 22.
  • the fixing piece 211 is fitted into the recess 121, the front end portion 21 of the shutter 20 is fitted and fixed to the recess 121, and the rear end portion 22 of the shutter 20 is fixed to the support portion 111 b of the through hole 111 and the outer guide. It is supported between the walls 11.
  • the shutter 20 is firmly fixed without shifting in the first direction D1.
  • the fixed piece 211 is put on the slot 101 to form a lid for closing the slot 101.
  • the concave portion 121 is provided so as to face the direction in which the through-hole 111 extends (third direction D3). Therefore, when the shutter 20 is slid in the direction in which the through-hole 111 extends (the third direction D3) and closed, the distal end portion 21 of the shutter 20 just fits into the recess 121. As a result, a rectangular space in section view surrounding the wire W between the surface of the front end portion 21 of the shutter 20 and the inner wall of the slot 101 is firmly secured. If the bottom surface of the slot 101 is along the third direction D3, the surface of the front end portion 21 of the shutter 20 and the bottom surface of the slot 101 can be made parallel. When the cross-sectional shape of the wire W is a rectangle, the parallel opposing surface and the surface of the wire W are matched, and the rotational deviation of the wire W can be suppressed.
  • the engaging piece 212 is provided in a state of extending in a cantilevered manner at the center of the front end 21 of the shutter 20.
  • a protrusion 212 a is provided on the distal end side of the engagement piece 212.
  • the thickness of the engagement piece 212 is thinner than the thickness of the fixed piece 211 (the inner dimension of the recess 121 in the first direction D1) from the root to the middle. Thereby, the engagement piece 212 can be slightly swung in the first direction D ⁇ b> 1 while being inserted into the recess 121.
  • the protrusion 212a protrudes upward (in a direction away from the slot 101), and engages with an engagement hole 121a provided at the back of the recess 121 with the shutter 20 closed.
  • the upper end position of the protrusion 212 a is positioned above the upper surface of the recess 121 in the inner guide wall 12.
  • the protrusion 212a is provided in a mountain shape, and the thickness of the engagement piece 212 provided with the protrusion 212a is slightly thinner than the inner dimension of the recess 121 in the first direction D1.
  • the protrusion 212a hits the recess 121, and the engagement piece 212 is slightly pushed down.
  • the position of the protrusion 212a rises due to the elasticity of the engagement piece 212 and engages with the engagement hole 121a. become.
  • the shutter 20 is fixed in a closed state. That is, by pushing the tip 21 of the shutter 20 into the recess 121, the protrusion 212a and the engagement hole 121a are engaged, and the shutter 20 can be fixed.
  • the engagement hole 121a is provided penetrating in the first direction D1. Therefore, the protrusion 212a and the engagement hole 121a are disengaged by pressing the protrusion 212a with an elongated tool from the outside of the engagement hole 121a. By pulling out the rear end of the shutter 20 in this state, the shutter 20 can be easily opened. Note that the shutter 20 may be pushed open while the protrusion 212a is pushed with an elongated tool.
  • the protrusion 212a is caught by the outer guide wall 11 through the through hole 111 when the shutter 20 is opened. Thereby, it functions also as prevention of omission of the shutter 20 when the shutter 20 is opened.
  • the wire W can be easily inserted into the slot 101 from the introduction port 102 with the shutter 20 opened. Even if the wire W is floating in the slot 101, the tip end 21 can push the wire W into the bottom of the slot 101 when closing the shutter 20. Furthermore, by closing the shutter 20, the shutter 20 can be locked without using a special tool or instrument, and the slot W can be covered and the wire W can be easily fixed to the bracket 1 by self-ligation.
  • the engagement hole 121a is provided through the first direction D1, but the present invention is not limited to this.
  • the tool is brought into contact with the stepped portion 212b provided in the central portion of the engagement piece 212, so that the protrusion 212a and the engagement hole 121a are brought into contact with each other.
  • the engagement can be disengaged.
  • FIG. 5A and 5B are cross-sectional views illustrating the buffer member.
  • FIG. 5A shows a state where the shutter 20 is opened
  • FIG. 5B shows a state where the shutter 20 is closed.
  • the buffer member 40 may be provided along the inner wall of the slot 101.
  • the form (thickness, cross-sectional shape, shape, etc.) of the wire W is selected according to the adjustment of the correction force and the stage of correction. For this reason, the size of the slot 101 of the bracket 1 may not match the thickness of the wire W.
  • the buffer member 40 is provided between the wire W and the inner wall of the slot 101 or between the wire W and the shutter 20 when the wire W is attached to the slot 101.
  • the buffer member 40 for example, silicone (silicone resin, silicone rubber) or plastic is used.
  • silicone silicone resin, silicone rubber
  • plastic is used for the buffer member 40.
  • the cross-sectional view shape of the buffer member 40 shown in FIG. 5 is L-shaped. Thereby, the buffer member 40 is interposed between the wire W and the side wall of the slot 101 and between the wire W and the shutter 20.
  • the shape of the buffer member 40 can be appropriately selected as necessary.
  • FIGS. 6A and 6B are schematic views illustrating bracket positioning jigs.
  • FIG. 6A shows a perspective view of the bracket positioning jig 5
  • FIG. 6B shows a side view of the bracket positioning jig 5 attached to the bracket 1.
  • the bracket positioning jig 5 is a jig for positioning the bracket 1 described above on the teeth.
  • the bracket positioning jig 5 includes a fixed end 51 and a support arm 52 extending from the fixed end 51.
  • the bracket positioning jig 5 is made of a metal such as stainless steel.
  • the fixed end 51 is inserted into the slot 101 of the bracket 1 and is fixed to the bracket body 10 by closing the shutter 20.
  • the fixed end portion 51 is provided with a slot fitting portion 511 corresponding to the size of the slot 101 and a convex portion 512 that holds both ends of the slot 101 in the second direction D2.
  • the fixed end 51 is fixed without moving in the second direction D2 and the third direction D3.
  • the fixed end 51 is provided with a shutter insertion hole 513.
  • the shutter 20 is closed with the fixed end 51 fitted in the slot 101, the shutter 20 is inserted into the shutter insertion hole 513, and the fixed end 51 The position in the first direction D1 can be fixed.
  • the support arm 52 is provided so as to extend from the fixed end 51.
  • the support arm 52 has flexibility.
  • the support arm 52 is easily fixed to the teeth by bending the base or middle of the support arm 52 in an appropriate direction.
  • FIG. 7 is a schematic view showing an example of use of the bracket positioning jig.
  • the tooth T includes not only the patient's tooth but also a model tooth.
  • the bracket 1 is attached to the tooth T, it is necessary to accurately match the position suitable for correction according to the position and angle of the tooth T.
  • a gap may be generated between the attachment surface 30a of the base portion 30 and the teeth T.
  • bracket positioning jig 5 of this embodiment is mounted on the bracket 1. By inserting the fixed end 51 of the bracket positioning jig 5 into the slot 101 and closing the shutter 20, the bracket positioning jig 5 and the bracket 1 are securely fixed.
  • the bracket 1 is aligned with the tooth T of the model tooth, and the support arm 52 of the bracket positioning jig 5 and the model tooth are fixed by the fixing member 6 at this position.
  • the fixing member 6 for example, an ultraviolet irradiation curable resin is used. Since the support arm 52 is fixed to the model tooth, the positional relationship between the bracket 1 fixed to the bracket positioning jig 5 and the model tooth is maintained.
  • the bracket positioning jig 5 and the fixing member 6 are also removed together with the bracket 1. Then, the removed fixing member 6 is put on the patient's teeth T. Since the fixing member 6 is fixed by the same model tooth as the tooth T, the bracket positioning jig 5 and the bracket 1 are arranged on the patient's tooth T in the same positional relationship as the model tooth.
  • the adhesive 7 is applied to the gap between the bracket 1 and the teeth T and cured.
  • the shutter 20 of the bracket 1 is opened, and the bracket positioning jig 5 is removed together with the fixing member 6. This makes it possible to fix the bracket 1 at the same position as when model teeth are used.
  • FIGS. 8A and 8B are schematic views showing another example (No. 1) of the bracket.
  • FIG. 8A shows a cross-sectional view of another bracket 1B
  • FIG. 8B shows a state in which the other bracket 1B is fixed to the tooth T.
  • FIG. The bracket 1B has a plurality of slots.
  • two slots of a first slot 101A and a second slot 101B are provided.
  • the depth direction of the first slot 101A is the first direction D1
  • the depth direction of the second slot 101B is the third direction D3.
  • the first shutter 20A is provided so as to be freely opened and closed, and in the second slot 101B, the second shutter 20B is provided so as to be freely opened and closed.
  • the first shutter 20A opens and closes in the third direction D3, and the second shutter 20B opens and closes in the first direction D1.
  • a fixed piece 211 and an engaging piece 212 are provided at the tip 21 of the first shutter 20A and the tip 21 of the second shutter 20B, respectively.
  • Each engagement piece 212 is provided with a protrusion 212a, and is locked when the shutter is closed.
  • the first wire W1 can be attached to the first slot 101A, and the second wire W2 can be attached to the second slot 101B.
  • the corrective force can be applied to the tooth T reliably by the plurality of wires.
  • the bracket 1B is effective when it is desired to apply orthodontic force by attaching it to the molar teeth.
  • the opening of the first slot 101A faces the tip side of the tooth T
  • the opening of the second slot 101B faces the front side or the back side of the tooth T.
  • the insertion directions of the wires W1 and W2 into the slots are orthogonal to each other.
  • the opening / closing directions of the first shutter 20A and the second shutter 20B are also orthogonal to each other. Even when the positions of the first slot 101A and the second slot 101B are close, if one shutter is closed, the other shutter can be opened and closed.
  • each of the first shutter 20A and the second shutter 20B is provided so as to be openable and closable.
  • the first shutter 20A and the second shutter 20B are easily fixed by the engagement between the projection 212a of the engagement piece 212 and the engagement hole 121a. be able to.
  • both the first shutter 20A and the second shutter 20B are temporarily closed, and one shutter (for example, the first shutter) With only 20A) opened, a wire (for example, the first wire W1) is inserted into a slot (for example, the first slot 101A) to close the shutter.
  • a wire for example, the second wire W2
  • the slot for example, the second slot 101B
  • first shutter 20A and the second shutter 20B are configured to cover the slot inlet side, the first wire W1 and the second wire W2 fitted in the slot are surely prevented from being lifted. be able to.
  • the bracket positioning jig according to the present embodiment described above is used as a jig for fixing the bracket 1B to the tooth T.
  • Tool 5 can be used.
  • FIG. 9 is a cross-sectional view showing another example (part 2) of the bracket.
  • the opening of the slot 101 ⁇ / b> C faces the side opposite to the mounting surface 30 a of the base portion 30. That is, the opening direction of the slot 101C is 90 degrees different from the bracket 1 shown in FIG. Therefore, the depth direction of the slot 101C is the third direction D3.
  • a shutter 20C is provided in the slot 101C so as to be freely opened and closed.
  • the shutter 20 is provided between the slot 101C of the bracket body 10 and the introduction port 102 so as to be able to advance and retreat.
  • the shutter 20C opens and closes in the first direction D1.
  • the shutter 20 ⁇ / b> C is inserted into a through hole 111 provided in the outer guide wall 11, and can be taken in and out through the through hole 111.
  • the opening of the slot 101C faces the side opposite to the attachment surface 30a. It is suitable when you want to put on and take off W.
  • fixing piece 212 ... engaging piece 212a ... projection portion 212b ... stepped portion 511 ... slot fitting portion 512 ... convex portion 513 ... Shutter insertion hole D1 ... first direction D2 ... second direction D3 ... third direction F ... hook T ... tooth W ... wire W1 ... first wire W2 ... the second wire

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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

L'invention concerne un bracket orthodontique auto-fixant qui peut être utilisé pour une correction précise. Le bracket orthodontique comprend un corps principal de bracket et un obturateur. Le corps principal de bracket comporte : une fente pour fixer un fil et une ouverture d'introduction qui communique avec la fente. L'obturateur est disposé de manière rétractable entre la fente et l'ouverture d'introduction du corps principal de bracket. Le corps principal de bracket comporte une paroi de guidage extérieure qui forme la fente et l'ouverture d'introduction. L'obturateur est inséré par un trou traversant qui est disposé dans la paroi de guidage extérieure. Lorsque l'obturateur doit être fermé, une partie de pointe de l'obturateur qui fait saillie depuis le trou d'insertion jusqu'au côté fente est déplacée dans une première direction, qui est orientée du côté d'ouverture d'introduction vers un côté de partie d'ouverture, de façon à couvrir la fente.
PCT/JP2018/001350 2017-01-19 2018-01-18 Bracket orthodontique et dispositif de serrage de positionnement de bracket Ceased WO2018135569A1 (fr)

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JP2017-007405 2017-01-19
JP2017007405A JP2020043879A (ja) 2017-01-19 2017-01-19 歯科矯正用のブラケットおよびブラケット位置決め用治具

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020162172A1 (fr) 2019-02-04 2020-08-13 康寛 斉宮 Verrou orthodontique
WO2024171070A1 (fr) * 2023-02-14 2024-08-22 Universita' Degli Studi Di Roma "La Sapienza" Dispositif orthodontique destiné à corriger la position des dents

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JPH08168497A (ja) * 1994-07-06 1996-07-02 Alexander J Wildman 開放用カム機構を有する閉鎖部材を用いる小型自動固定歯科矯正用ブラケット
JP2003260066A (ja) * 2002-03-07 2003-09-16 Yoneo Sugano 歯列矯正用ブラケット
JP2010187915A (ja) * 2009-02-18 2010-09-02 Orthostation:Kk ブラケット取り付け治具
US8029276B1 (en) * 2010-09-23 2011-10-04 Robert Lokar Self-ligating orthodontic bracket
US20150216629A1 (en) * 2012-03-28 2015-08-06 Orthoarm, Inc. Orthodontic Bracket with Angled, Curved Shutter
US20160015482A1 (en) * 2012-11-16 2016-01-21 World Class Technology Corporation Self-ligating Bracket with Sliding Cover

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08168497A (ja) * 1994-07-06 1996-07-02 Alexander J Wildman 開放用カム機構を有する閉鎖部材を用いる小型自動固定歯科矯正用ブラケット
JP2003260066A (ja) * 2002-03-07 2003-09-16 Yoneo Sugano 歯列矯正用ブラケット
JP2010187915A (ja) * 2009-02-18 2010-09-02 Orthostation:Kk ブラケット取り付け治具
US8029276B1 (en) * 2010-09-23 2011-10-04 Robert Lokar Self-ligating orthodontic bracket
US20150216629A1 (en) * 2012-03-28 2015-08-06 Orthoarm, Inc. Orthodontic Bracket with Angled, Curved Shutter
US20160015482A1 (en) * 2012-11-16 2016-01-21 World Class Technology Corporation Self-ligating Bracket with Sliding Cover

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020162172A1 (fr) 2019-02-04 2020-08-13 康寛 斉宮 Verrou orthodontique
JPWO2020162172A1 (ja) * 2019-02-04 2021-09-09 康寛 斉宮 歯科矯正用のブラケット
TWI761754B (zh) * 2019-02-04 2022-04-21 斉宮康寛 齒科矯正用托架
US11583368B2 (en) 2019-02-04 2023-02-21 Yasuhiro Itsuki Orthodontic bracket
WO2024171070A1 (fr) * 2023-02-14 2024-08-22 Universita' Degli Studi Di Roma "La Sapienza" Dispositif orthodontique destiné à corriger la position des dents

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