WO2018225161A1 - Orthodontic bracket and orthodontic device - Google Patents

Orthodontic bracket and orthodontic device Download PDF

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Publication number
WO2018225161A1
WO2018225161A1 PCT/JP2017/021007 JP2017021007W WO2018225161A1 WO 2018225161 A1 WO2018225161 A1 WO 2018225161A1 JP 2017021007 W JP2017021007 W JP 2017021007W WO 2018225161 A1 WO2018225161 A1 WO 2018225161A1
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WO
WIPO (PCT)
Prior art keywords
orthodontic
opening
cover member
shape
shaft
Prior art date
Application number
PCT/JP2017/021007
Other languages
French (fr)
Japanese (ja)
Inventor
由紀夫 田嶋
Original Assignee
株式会社Ａｔｏｍｅｒ
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 株式会社Ａｔｏｍｅｒ filed Critical 株式会社Ａｔｏｍｅｒ
Priority to PCT/JP2017/021007 priority Critical patent/WO2018225161A1/en
Publication of WO2018225161A1 publication Critical patent/WO2018225161A1/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
    • A61C7/28—Securing arch wire to bracket

Definitions

  • the present invention relates to a technique for correcting a dentition.
  • Patent Document 1 discloses an orthodontic bracket that includes an archwire slot and a lock member that can move to open and close the archwire slot.
  • Patent Document 2 discloses an orthodontic bracket including a slot that accommodates an archwire and a lock member that fixes the archwire.
  • Patent Document 3 discloses an orthodontic bracket including an insertion path into which an archwire is inserted and a fixing pin that fixes the archwire.
  • Patent Document 4 discloses an orthodontic bracket having a slot for holding an archwire.
  • JP 2001-104340 A Japanese Patent Laid-Open No. 2003-070808 JP 2005-245919 A JP 2010-274110 A
  • the orthodontic bracket is typically adhered to the teeth using an adhesive.
  • the adhesive may flow down from the bonding surface bonded to the teeth, and the adhesive force may be weakened.
  • An object of this invention is to strengthen the adhesive force with respect to the tooth of an orthodontic bracket.
  • the present invention provides an orthodontic bracket having an adhesive surface that is adhered to a tooth by an adhesive, the concave portion being formed in the adhesive surface, and at least a part of which has a recessed opening. To do.
  • the concave portion may have a shape in which a central portion having a square cross section swells.
  • the adhesive surface may have a shape in which at least a part is recessed.
  • the adhesive surface may have a shape whose cross section is curved on the side opposite to the teeth.
  • the orthodontic bracket includes a bottom portion having the adhesive surface, a shaft that is opened through a first opening and receives an orthodontic wire so that the groove extends from one end to the other end, and the bottom portion.
  • a first support portion and a second support portion provided to support one end and the other end of the shaft, respectively, and a hollow portion that is opened through a second opening extending along the groove and through which the shaft passes.
  • An open position provided between the first support portion and the second support portion, wherein the first opening portion and the second opening portion overlap, and the first opening portion and the second opening portion overlap.
  • a cover member supported by the shaft so as to be rotatable between the closed position and the cover member; and the cover member is provided on the cover member, and when the cover member rotates to the open position, the cover member comes into contact with the bottom portion A stopper for stopping the member There.
  • the present invention also includes an orthodontic wire and a plurality of orthodontic brackets for holding the orthodontic wire, and each of the plurality of orthodontic brackets is bonded to a tooth with an adhesive.
  • an orthodontic appliance in which a concave portion is formed on the adhesive surface, and at least a part of the adhesive surface has a shape in which an opening is depressed.
  • the adhesive force of the orthodontic bracket to the teeth can be enhanced.
  • FIG. 2 is a perspective view showing an example of an orthodontic bracket 20.
  • FIG. 2 is an exploded perspective view showing an example of an orthodontic bracket 20.
  • FIG. 4 is a plan view showing an example of a base member 30.
  • FIG. 3 is a front view showing an example of a base member 30.
  • FIG. 4 is a side view showing an example of a base member 30.
  • FIG. 4 is a bottom view showing an example of a base member 30.
  • FIG. FIG. 5 is a cross-sectional view showing an example of a base member 30 as viewed from the direction of arrow II in FIG. FIG.
  • FIG. 5 is a cross-sectional view showing an example of a base member 30 viewed from the direction of arrow II-II in FIG. It is an enlarged view which shows an example of the A section in FIG. 3 is a front view showing an example of a shaft 40.
  • FIG. 3 is a side view showing an example of a shaft 40.
  • FIG. 4 is a side view showing an example of a cover member 50.
  • FIG. 4 is a plan view showing an example of a cover member 50.
  • FIG. It is sectional drawing which shows an example of the cover member 50 seen from the arrow III-III direction in FIG. It is a figure which shows an example of the usage method of the orthodontic bracket.
  • It is a top view which shows an example of the orthodontic bracket 20 of the state which the cover member 50 moved to the open position.
  • It is a top view which shows an example of the orthodontic bracket 20 of the state which the cover member 50 moved to the closed position.
  • FIG. 1 is a diagram illustrating an example of an orthodontic apparatus 1 according to the present embodiment.
  • the orthodontic apparatus 1 is used for orthodontic correction.
  • the orthodontic apparatus 1 is mounted on the surface of the tooth 2.
  • the orthodontic apparatus 1 is mounted on the back side of the tooth 2, that is, on the lingual side surface of the tooth 2.
  • the orthodontic apparatus 1 includes an orthodontic wire 10 and a plurality of orthodontic brackets 20.
  • the orthodontic wire 10 applies an orthodontic force to the teeth 2.
  • the orthodontic wire 10 has a shape matched to the orthodontic teeth after correction.
  • the orthodontic wire 10 has a substantially arch shape.
  • the orthodontic wire 10 is formed of an elastic material.
  • the orthodontic wire 10 is formed of a shape memory alloy, and the teeth 2 are gradually moved by a force for returning to the original shape.
  • the cross section of the orthodontic wire 10 is, for example, circular.
  • the cross-sectional shape of the orthodontic wire 10 may be a shape other than a circle, for example, a quadrangle.
  • the orthodontic wire 10 may be thinner than the orthodontic wire generally used in the conventional orthodontic apparatus. Commonly used orthodontic wires have a thickness of at least 0.12 inches in diameter. On the other hand, the thickness of the orthodontic wire 10 may be, for example, 0.08 inches in diameter.
  • FIG. 2 is a perspective view showing an example of the orthodontic bracket 20.
  • FIG. 3 is an exploded perspective view showing an example of the orthodontic bracket 20.
  • the orthodontic bracket 20 is fixed to the tooth 2 and holds the orthodontic wire 10.
  • the orthodontic bracket 20 is formed of a material having a predetermined strength. This predetermined strength is, for example, such a strength that it is difficult to crack or scratch.
  • the orthodontic bracket 20 is made of metal.
  • the material of the orthodontic bracket 20 is not limited to metal. For example, ceramics or silicon may be used as the material of the orthodontic bracket 20.
  • the orthodontic bracket 20 may be smaller than the conventional orthodontic bracket.
  • the orthodontic bracket 20 has a size of 2.10 mm in width, 2. It may be 65 mm and height 1.84 mm.
  • the size of the orthodontic bracket 20 is not limited to this dimension.
  • the size of the orthodontic bracket 20 may be smaller than this dimension.
  • the orthodontic wire 10 is held at a position close to the central axis of the tooth 2.
  • the force required to move the teeth 2 is reduced, it is possible to employ an orthodontic wire 10 that is thinner than an orthodontic wire that is generally used as described above.
  • the force added to the tooth 2 becomes weak, the pain and discomfort which arise by orthodontic can be reduced.
  • the tooth 2 can be moved efficiently, the treatment period of orthodontics is shortened.
  • the orthodontic bracket 20 includes a base member 30, a shaft 40, and a cover member 50.
  • the base member 30, the shaft 40, and the cover member 50 are formed by metal processing, for example.
  • the base member 30 and the shaft 40 may be formed by press molding
  • the cover member 50 may be formed by metal powder injection molding (Metal-Injection-Molding: MIM).
  • the cover member 50 rotates around the shaft 40 and moves between a closed position indicated by a two-dot chain line in FIG. 2 and an open position indicated by a solid line in FIG.
  • the orthodontic bracket 20 is ready to receive the orthodontic wire 10.
  • the orthodontic bracket 20 can attach the orthodontic wire 10 to the orthodontic bracket 20 by rotating the cover member 50. Therefore, in the orthodontic bracket 20, for example, it is not necessary to perform an operation of binding the orthodontic wire 10 to the orthodontic bracket 20 using a ligature wire.
  • FIG. 4 is a plan view showing an example of the base member 30.
  • FIG. 5 is a front view showing an example of the base member 30.
  • FIG. 6 is a side view showing an example of the base member 30.
  • FIG. 7 is a bottom view showing an example of the base member 30.
  • FIG. 8 is a cross-sectional view showing an example of the base member 30 viewed from the direction of arrow II in FIG.
  • FIG. 9 is a cross-sectional view showing an example of the base member 30 as viewed from the direction of the arrow II-II in FIG.
  • FIG. 10 is an enlarged view showing an example of a portion A in FIG.
  • the base member 30 includes a bottom portion 31, a hook 32, and support portions 33 and 34.
  • the bottom 31 constitutes the bottom of the orthodontic bracket 20.
  • the bottom 31 has a plate shape.
  • the end of the bottom 31 in the ⁇ y direction in the drawing has a substantially arch shape with the center protruding in the direction of the arrow ⁇ y in the drawing.
  • the bottom 31 has a base surface 311 and an adhesive surface 312 on the opposite side of the base surface 311.
  • the bonding surface 312 is bonded to the lingual surface of the tooth 2 using an adhesive.
  • a plurality of recesses 35 and a plurality of recesses 36 are formed on the bonding surface 312.
  • the plurality of recesses 35 are formed to hold the adhesive.
  • the plurality of recesses 35 are arranged in a predetermined pattern.
  • the plurality of recesses 35 are arranged in a matrix.
  • the concave portions 35 of 7 rows and 3 columns are arranged at predetermined intervals.
  • the number of the recessed parts 35 is not limited to the number illustrated in FIG.
  • the number of the recesses 35 may be larger or smaller than the number illustrated in FIG.
  • the number of rows of the recesses 35 may be five and the number of columns may be two.
  • Each recess 35 has a shape in which the opening 351 is narrowed.
  • the narrowed opening is defined, for example, as a shape having a cross-sectional area wider than the opening area of the opening in at least a part of the cross section of the recess parallel to the opening surface. If it is an aspect, it will not be limited to this.
  • the recess 35 has a shape in which the opening 351 is a quadrangle, the cross section of the quadrangle is inflated, and the center of the quadrangular prism is inflated as a whole.
  • the width W1 of the opening 351 is smaller than the width W2 of the central portion of the recess 35.
  • the plurality of recesses 36 are formed to make a plurality of recesses 35.
  • a plurality of recesses 36 are formed around each recess 35.
  • four recesses 36 are formed at predetermined intervals on four sides of each recess 35.
  • only one recess 36 is formed between two adjacent recesses 35.
  • the recess 36 does not necessarily have to be formed on all four sides of the opening 351.
  • the recesses 36 may be formed only in the three sides of the opening 351, and the recesses 36 may not be formed for the remaining one.
  • the number of the recessed parts 36 is not limited to the number illustrated in FIG. The number of the recesses 36 may be larger or smaller than the number illustrated in FIG.
  • the recess 36 extends along the side of the opening 351 and has a shape in which the opening is open.
  • the recess 36 has a rectangular opening, a triangular cross section, and a shape in which a triangular prism is tilted as a whole.
  • the recess 36 is provided in such a direction as to extend along the side of the opening 351.
  • the recesses 36 aligned with the opening 351 along the arrow x direction in the figure are provided in such a direction that the height direction of the triangular prism becomes the arrow y direction in the figure.
  • the recesses 36 aligned with the opening 351 along the arrow y direction in the figure are provided in such a direction that the height direction of the triangular prism becomes the arrow x direction in the figure.
  • the adhesive surface 312 has a shape in which at least a part thereof is depressed in order to hold the adhesive.
  • the constricted shape is defined as a shape in which at least a part of the adhesive surface 312 is bonded to the surface of the tooth 2 and has a space between the reference surface along the surface of the tooth 2.
  • the adhesive surface 312 only needs to have a shape that allows the adhesive to accumulate in at least a portion of the adhesive surface 312 when it is adhered to the tooth 2 using an adhesive.
  • the cross section of the bonding surface 312 has a shape curved in the arrow z direction in the drawing. That is, the adhesive surface 312 has a shape with a depressed central portion. In this case, the edge of the bonding surface 312 contacts the tooth 2, but the central portion of the bonding surface 312 does not contact the tooth 2.
  • Support portions 33 and 34 are provided on the bottom portion 31 and support one end and the other end of the shaft 40, respectively.
  • the support portion 33 is connected to the end of the base surface 311 in the arrow x direction in the drawing
  • the support portion 34 is the end of the base surface 311 in the arrow ⁇ x direction in the drawing.
  • the support part 33 and the support part 34 are provided so as to face each other.
  • the support portions 33 and 34 both protrude in the direction away from the tooth 2.
  • the support portions 33 and 34 protrude in the arrow z direction in the drawing.
  • the support part 33 and the support part 34 are arranged with an interval corresponding to the width of the cover member 50.
  • the support portions 33 and 34 are not limited to those that support one end and the other end of the shaft 40.
  • the support portions 33 and 34 may support portions other than one end and the other end of the shaft 40. That is, the support parts 33 and 34 should just support the axis
  • the support portion 33 has a plate shape. As shown in FIG. 6, when viewed from the side, the outer edge of the support portion 33 has an arc shape.
  • the support part 34 also has the same shape as the support part 33. As shown in FIG. 5, the support portion 33 has an inner surface 331 that faces the support portion 34, and an outer surface 332 that is on the opposite side of the inner surface 331. Similarly, the support portion 34 has an inner surface 341 that faces the support portion 33, and an outer surface 342 that is on the opposite side of the inner surface 341.
  • the support portions 33 and 34 are formed with holes 333 and 343 penetrating along the axial direction, respectively.
  • the hole 333 penetrates from the inner surface 331 to the outer surface 332 along the arrow x direction in the drawing.
  • the hole 343 penetrates from the outer surface 342 to the inner surface 341 along the arrow x direction in the drawing.
  • Both holes 333 and 343 have a shape corresponding to the outer surface of the shaft 40.
  • the shaft 40 is fitted into the holes 333 and 343.
  • the holes 333 and 343 have openings 334 and 344, and open through the openings 334 and 344, respectively.
  • the opening width W3 of the openings 334 and 344 shown in FIG. 4 has a size larger than the diameter of the orthodontic wire 10. However, the opening width W3 is smaller than the diameter of the shaft 40.
  • Projections 37 and 38 are provided on the inner side surfaces 331 and 341 in order to fix the cover member 50 in the closed position, respectively.
  • the protrusions 37 and 38 protrude from the inner side surfaces 331 and 341, respectively.
  • each of the protrusions 37 and 38 has a hemispherical shape. The protrusions 37 and 38 come into contact with the cover member 50 moved to the closed position, and fix the cover member 50 in the closed position.
  • an orthodontic elastic body such as a power chain, a coil spring, or an intermaxillary rubber may be used in combination with or in place of the orthodontic wire 10.
  • the hook 32 is used to hold an orthodontic elastic body.
  • the hook 32 is provided at the root 31 side end of the tooth 2 at the bottom 31. In this example, as shown in FIG. 4, the hook 32 is provided at the end of the bottom 31 in the direction of the arrow y in the figure.
  • the hook 32 has such a shape that an elastic body for orthodontics is hooked.
  • the hook 32 has a protruding portion 321 that protrudes in the arrow x direction and the arrow -x direction in the drawing.
  • An orthodontic elastic body is hooked on the protrusion 321.
  • Notches 335 and 345 are formed at the front end of the tooth 2 in the support portions 33 and 34, respectively. Further, notches 336 and 346 are formed at the root ends of the teeth 2 in the support portions 33 and 34, respectively.
  • the notches 335, 336, 345, and 346 are used to hold an orthodontic elastic body, similar to the hook 32 described above.
  • the notches 335 and 345 are formed by the cover member 50 moved to the base surface 311 and the closed position at the ends of the support portions 33 and 34 in the direction of the arrow ⁇ y.
  • the notches 336 and 346 are formed at positions where the ends of the support portions 33 and 34 in the direction of the arrow y in the figure intersect with straight lines extending from the notches 335 and 345 in the direction of the arrow y.
  • the notches 335, 336, 345, and 346 have shapes that allow the orthodontic elastic body to be hooked.
  • the notches 335 and 345 both have a shape that extends in the direction of the arrow y in the drawing and the opening is widened.
  • the notches 336 and 346 both have a shape that extends in the direction of the arrow -y in the figure and the opening is widened.
  • An orthodontic elastic body is hooked on the notches 335, 336, 345, and 346.
  • an orthodontic elastic body has a ring at its end. A part of the ring portion is hooked on the notches 335 and 345.
  • the other portion of the ring portion facing this portion is hooked by the notches 336 and 346. Accordingly, the ring portion is fixed in a state of surrounding the support portions 33 and 34.
  • FIG. 11 is a front view showing an example of the shaft 40.
  • FIG. 12 is a side view showing an example of the shaft 40.
  • the shaft 40 supports the cover member 50 so as to be rotatable.
  • the shaft 40 has a rod-like shape extending along the axial direction.
  • the shaft 40 has a shape obtained by cutting a part of a cylinder extending along the arrow x direction in the drawing along the arrow x direction in the drawing.
  • the arrow x direction in the figure is the axial direction.
  • a groove 41 for receiving the orthodontic wire 10 is formed on the outer surface of the shaft 40.
  • the groove 41 is formed so as to extend from one end in the axial direction to the other end.
  • the groove 41 is formed to extend from one end of the shaft 40 to the other end along the arrow x direction in the drawing.
  • the groove 41 has a substantially semicircular cross section.
  • the groove 41 opens through the opening 411.
  • the opening width W ⁇ b> 4 of the opening 411 shown in FIG. 12 is larger than the diameter of the orthodontic wire 10.
  • a flat portion 42 that functions as a detent is provided on a part of the outer surface of the shaft 40.
  • the plane part 42 has a planar shape.
  • the flat portion 42 is provided so as to extend from one end of the shaft 40 to the other end along the direction of the arrow x in the drawing.
  • the plane portion 42 is provided on each of one side and the other side adjacent to the groove 41 in the circumferential direction.
  • FIG. 13 is a side view showing an example of the cover member 50.
  • FIG. 14 is a plan view showing an example of the cover member 50.
  • FIG. 15 is a cross-sectional view showing an example of the cover member 50 as viewed from the direction of arrows III-III in FIG.
  • the cover member 50 rotates around the shaft 40 to open and close the opening 411 of the groove 41.
  • the cover member 50 is provided between the support part 33 and the support part 34.
  • a part of the cover member 50 is provided between the support part 33 and the support part 34.
  • the installation mode of the cover member 50 is not limited to this. It is sufficient that at least a part of the cover member 50 is provided between the support portion 33 and the support portion 34.
  • the cover member 50 has a shape extending along the radial direction of the shaft 40 from the proximal end in the arrow y direction in the figure to the distal end in the arrow -y direction in the figure. As shown in FIG. 14, when viewed from above, the cover member 50 has a substantially T-shape.
  • the cover member 50 has a proximal end region 501, an arm region 502, and a distal end region 503.
  • the proximal end region 501 is a region including the proximal end of the cover member 50.
  • the tip region 503 is a region including the tip of the cover member 50.
  • the arm region 502 is a region between the proximal end region 501 and the distal end region 503.
  • the length from the position C2 corresponding to the axis of the cover member 50 shown in FIG. 13 to the end of the tip region 503 in the arrow y direction in the drawing is the position corresponding to the axes of the support portions 33 and 34 shown in FIG. It is larger than the length from C1 to the outermost edge that is farthest in the radial direction of the shaft 40. Accordingly, the tip region 503 is located outside the support portions 33 and 34 in the radial direction of the shaft 40.
  • the proximal end region 501 has a substantially cylindrical shape with a substantially C-shaped cross section.
  • the proximal end region 501 has a hollow portion 51 that penetrates in the axial direction.
  • the hollow part 51 penetrates the inside of the base end area
  • the hollow portion 51 has a shape corresponding to the outer peripheral surface of the shaft 40.
  • the shaft 40 passes through the hollow portion 51.
  • the hollow portion 51 has an opening 511 extending along the groove 41 and opens through the opening 511.
  • the opening 511 extends from one end of the proximal end region 501 to the other end along the arrow x direction in the drawing.
  • the opening width W ⁇ b> 5 of the opening 511 shown in FIG. 13 has a size larger than the diameter of the orthodontic wire 10. However, the opening width W5 is smaller than the outer diameter of the shaft 40.
  • the cover member 50 rotates between the closed position indicated by the two-dot chain line in FIG. 2 and the open position indicated by the solid line in FIG.
  • This open position is a position where the opening 411 of the groove 41 and the opening 511 of the hollow portion 51 overlap.
  • this closed position is a position where these openings 411 and 511 do not overlap.
  • a stopper 52 is provided on the outer surface of the proximal end region 501 in order to stop the cover member 50 at the open position.
  • the stopper 52 protrudes from the outer surface of the cover member 50.
  • the stopper 52 is provided on the outer surface of the base end region 501 at a position where it comes into contact with the base surface 311 when the cover member 50 moves to the open position.
  • the stopper 52 is provided so as to extend from one end to the other end of the cover member 50 along the arrow x direction in the drawing.
  • the arm region 502 has a substantially wedge shape. As shown in FIG. 13, when viewed from the side, the edge of the arm region 502 in the direction of arrow z in the figure is inclined so as to become lower toward the direction of arrow -y in the figure. If the arrow z direction in the figure is defined as the thickness direction, the thickness of the arm region 502 is the largest at the end in the arrow y direction in the figure and gradually decreases as it reaches the arrow -y direction in the figure.
  • the arm region 502 has a side surface 504 that faces the inner side surface 331 in the closed position, a side surface 505 that faces the inner side surface 341 in the closed position, and a bottom surface 506 that faces the base surface 311 in the closed position.
  • depressions 53 and 54 into which the protrusions 37 and 38 are inserted are formed, respectively.
  • the depressions 53 and 54 are formed at positions facing the protrusions 37 and 38 in the closed position, respectively.
  • the recesses 53 and 54 have shapes corresponding to the protrusions 37 and 38, respectively.
  • the arm region 502 has an edge portion 55 between the side surface 504 and the bottom surface 506, and has an edge portion 56 between the side surface 505 and the bottom surface 506.
  • the edges 55 and 56 contact the protrusions 37 and 38 while the cover member 50 moves from the open position to the closed position, respectively.
  • the edges 55 and 56 both have a rounded shape. In this example, the edges 55 and 56 both have a chamfered shape.
  • the tip region 503 is used when the cover member 50 is rotated.
  • the tip region 503 protrudes in the axial direction.
  • the tip region 503 protrudes in the arrow x direction and the ⁇ x direction in the drawing.
  • the tip region 503 has side surfaces 507 and 508 that intersect the axial direction, and a bottom surface 509 that faces the teeth 2 in the closed position.
  • the side surface 507 is located at the end of the tip region 503 in the direction of the arrow ⁇ x in the drawing.
  • the side surface 508 is located at the end of the tip region 503 in the direction of the arrow x in the drawing.
  • a dedicated instrument such as tweezers is used.
  • the side surfaces 507 and 508 are respectively formed with depressions 57 and 58 into which the instrument is inserted. Both indentations 57 and 58 have a shape corresponding to this instrument.
  • a depression 59 is formed on the bottom surface 509.
  • a dedicated instrument used for the operation of rotating the cover member 50 is inserted into the recess 59.
  • the depression 59 is used as an emergency instead of the depressions 57 and 58 when the depressions 57 and 58 cannot be used, for example.
  • the recess 59 is formed at the center of the bottom surface 509 so as to extend from one end to the other end of the tip region 503 along the arrow x direction in the drawing.
  • the cover member 50 is held between the support portion 33 and the support portion 34 so that the hole 343, the hollow portion 51, and the hole 333 are aligned along the arrow x direction in the drawing.
  • the shaft 40 is passed through the hole 333 from the outside along the arrow -x direction in the drawing.
  • the shaft 40 is directly passed through the hollow portion 51 along the arrow -x direction in the figure, and then fitted into the hole 343 from the inside.
  • the shaft 40 may be passed through the hole 343 from the outside along the direction of the arrow x in the drawing and fitted into the hole 333 from the inside. In this way, the orthodontic bracket 20 is assembled.
  • the shaft 40 is prevented from coming off from the openings 334 and 344.
  • the opening width W5 of the opening 511 is smaller than the outer diameter of the shaft 40, the shaft 40 is prevented from coming off from the opening 511.
  • the shaft 40 is provided with a flat surface portion 42, and the holes 333 and 343 both have shapes corresponding to the flat surface portion 42, the shaft 40 is prevented from being swung in the holes 333 and 343.
  • the orthodontic bracket 20 In the orthodontic bracket 20, holes 333 and 343 into which the shaft 40 is fitted into the support portion 33 and the support portion 34 are formed. Therefore, the orthodontic bracket 20 can be easily assembled only by fitting the shaft 40 into the holes 333 and 343.
  • FIG. 16 is a diagram illustrating an example of a method of using the orthodontic bracket 20.
  • FIG. 17 is a plan view showing an example of the orthodontic bracket 20 with the cover member 50 moved to the open position.
  • FIG. 18 is a plan view showing an example of the orthodontic bracket 20 with the cover member 50 moved to the closed position.
  • the medical staff adheres the adhesive surface 312 of the orthodontic bracket 20 to the lingual surface of the tooth 2 using an adhesive.
  • the orthodontic bracket 20 is bonded in such an orientation that the hook 32 is located at the root end of the tooth 2 and the notches 335 and 345 are located at the tip end of the tooth 2.
  • the cover member 50 is in the closed position. In the closed position, the tip of the cover member 50 is located at the tip end of the tooth 2.
  • the adhesive When the adhesive is applied to the adhesive surface 312, the adhesive enters the recess 35.
  • the adhesive As shown in FIG. 10, since the opening 351 of the recess 35 is narrowed, the adhesive is held in the recess 35. Further, as shown in FIGS. 8 and 9, since the central portion of the bonding surface 312 is depressed, the adhesive is also held in this central portion.
  • the adhesive is cured, the bonding surface 312 is bonded to the surface of the tooth 2. At this time, since the adhesive is held in the concave portion 35 and the central portion of the bonding surface 312, the adhesion force of the orthodontic bracket 20 to the teeth 2 is strengthened.
  • the medical staff inserts an instrument such as tweezers into the recess 57 or 58 and rotates the cover member 50 in the clockwise direction in the drawing.
  • an instrument such as tweezers
  • the cover member 50 is rotated to move from the closed position to the open position.
  • the stopper 52 comes into contact with the base surface 311 and the cover member 50 stops.
  • the stopper 52 since the stopper 52 is provided, rotation of the cover member 50 beyond the open position is prevented, so that the cover member 50 can be easily rotated to the open position. Further, since the cover member 50 is stopped at the open position by the stopper 52, for example, the cover member 50 may not be pressed at the open position.
  • the opening 511 of the cover member 50, the opening 334 of the support 33, and the opening 344 of the support 34 are in the direction of the arrow x in the figure. Line up along.
  • the openings 511, 334, and 344 overlap with the opening 411 of the groove 41, the groove 41 is opened to the outside through the openings 334, 344, and 511.
  • the opening width W3 of the openings 334 and 344, the opening width W4 of the opening 411, and the opening width W5 of the opening 511 are all larger than the diameter of the orthodontic wire 10.
  • the orthodontic wire 10 can be inserted into the groove 41 through the openings 511, 334, and 344.
  • the medical staff inserts the orthodontic wire 10 into the groove 41 through the openings 511, 334, and 344.
  • the medical worker rotates the cover member 50 counterclockwise in the drawing.
  • the edges 55 and 56 of the cover member 50 are in contact with the protrusions 37 and 38, respectively.
  • the edges 55 and 56 both have a rounded shape, wear and damage due to this contact are prevented.
  • the cover member 50 is rotated to move from the open position to the closed position.
  • the cover member 50 When the cover member 50 is rotated to the closed position, the protrusions 37 and 38 are inserted into the recesses 53 and 54, respectively, as shown in FIG. Thereby, the cover member 50 is fixed in the closed position. As described above, when the protrusions 37 and 38 are used for fixing the cover member 50, the fixing strength increases. Therefore, the cover member 50 rotates unintentionally to open the groove 41, and the orthodontic wire 10 Disengagement from the orthodontic bracket 20 is prevented.
  • the opening 411 of the groove 41 and the opening 511 of the cover member 50 do not overlap with each other, so that the groove 41 is closed. Thereby, the orthodontic wire 10 is held in the orthodontic bracket 20 without coming out of the groove 41.
  • the tooth is compared with the case where the bonding surface 312 does not have the concave portion 35 or the bonding surface 312 is flat.
  • the adhesive force of the orthodontic bracket 20 to 2 is strengthened.
  • the groove 41 is opened and closed by the operation of rotating the cover member 50, and the orthodontic wire 10 can be attached to the orthodontic bracket 20. Therefore, the operation
  • the orthodontic apparatus 1 is used for lingual correction, but the orthodontic apparatus 1 may be used for labial correction.
  • the orthodontic bracket 20 is bonded to the front side of the tooth 2, that is, the labial surface of the tooth 2.
  • the shape of the recess 35 of the bonding surface 312 is not limited to the shape described in the above-described embodiment.
  • the recess 35 may have another shape as long as the opening 351 is constricted.
  • the recess 35 may have a shape that gradually narrows from the bottom to the opening 351.
  • the width of the bottom of the concave portion 35 is larger than the width W1 of the central portion of the concave portion 35 shown in FIG.
  • the recess 35 may have a circular shape with an opening having a circular shape, a central portion having a square cross section, and a central portion having a circular shape as a whole.
  • the recess 35 does not necessarily have a shape in which all of the opening 351 is narrowed.
  • the recess 35 may have a shape in which at least a part of the opening 351 is narrowed.
  • the recess 35 may have a shape in which only two or three sides of the opening 351 are recessed and the remaining two or one side is widened.
  • the shape in which the opening 351 is narrowed refers to a shape in which the width of the opening 351 is smaller than the width of the other part of the recess 35.
  • the other part may be the central part of the recess 35, the bottom part, or the part having the largest width in the recess 35.
  • the recess 36 may be formed in at least one around the opening 351.
  • the plurality of recesses 35 have a shape in which the opening 351 is constricted. Only a part of the plurality of recesses 35 has a shape in which the opening 351 is narrowed, and the remaining recesses 35 may not have a shape in which the opening 351 is narrowed.
  • the orthodontic bracket 20 does not necessarily have to include all the configurations described in the above-described embodiments.
  • the orthodontic bracket 20 may not include the hook 32.
  • the recesses 53 and 54 may not be formed in the cover member 50.
  • the cover member 50 when the cover member 50 moves to the closed position, the protrusions 37 and 38 are pressed against the side surfaces 504 and 505 of the cover member 50. Thereby, the cover member 50 may be fixed in the closed position.
  • only one of the protrusions 37 and 38 may be provided.
  • the cover member 50 may be formed with any one or two of the recesses 57, 58, and 59.
  • each member of the orthodontic bracket 20 described in the above-described embodiment is merely examples, and the present invention is not limited thereto.
  • the bracket body of the orthodontic bracket 20 is configured by the base member 30, the shaft 40, and the cover member 50.
  • the configuration of the bracket body is not limited to this.
  • the bracket body may have a hole through which the orthodontic wire 10 is passed.
  • the bracket body may have a groove for receiving the orthodontic wire 10, and the orthodontic wire 10 may be tied to the bracket body using a ligature wire.
  • the bracket body may include a groove that receives the orthodontic wire 10 and a shutter that slides to open and close the groove. Thus, the bracket body may hold the orthodontic wire 10 by any method.
  • the orthodontic bracket of the present invention has an adhesive surface that is bonded to the teeth by an adhesive, and the adhesive surface has a recess, and at least a part of the opening has a narrowed shape. That's fine.

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  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
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Abstract

The purpose of the present invention is to enhance the adhesive force of an orthodontic bracket with respect to teeth. This orthodontic bracket is provided with an adhesive surface which is adhered to teeth by an adhesive. Recesses are formed in the adhesive surface. At least some of the recesses have a shape with a sunken opening.

Description

歯列矯正ブラケット及び歯列矯正装置Orthodontic bracket and orthodontic appliance
　本発明は、歯列を矯正する技術に関する。 The present invention relates to a technique for correcting a dentition.
　ワイヤーとブラケットとを用いて歯列を矯正する技術が知られている。例えば特許文献１には、アーチワイヤースロットと、アーチワイヤースロットを開閉すべく移動可能なロック部材とを備える歯列矯正ブラケットが開示されている。特許文献２には、アーチワイヤーを収容するスロットと、アーチワイヤーを固定するロック部材とを備える歯列矯正ブラケットが開示されている。特許文献３には、アーチワイヤーが挿入される挿通路と、アーチワイヤーを固定する固定ピンとを備える歯列矯正ブラケットが開示されている。特許文献４には、アーチワイヤーを保持するスロットを備える歯列矯正ブラケットが開示されている。 技術 Technology is known for correcting teeth using wires and brackets. For example, Patent Document 1 discloses an orthodontic bracket that includes an archwire slot and a lock member that can move to open and close the archwire slot. Patent Document 2 discloses an orthodontic bracket including a slot that accommodates an archwire and a lock member that fixes the archwire. Patent Document 3 discloses an orthodontic bracket including an insertion path into which an archwire is inserted and a fixing pin that fixes the archwire. Patent Document 4 discloses an orthodontic bracket having a slot for holding an archwire.
特開２００１－１０４３４０号公報JP 2001-104340 A 特開２００３－０７０８０８号公報Japanese Patent Laid-Open No. 2003-070808 特開２００５－２４５９１９号公報JP 2005-245919 A 特開２０１０－２７４１１０号公報JP 2010-274110 A
　歯列矯正ブラケットは、一般的には接着剤を用いて歯に接着される。しかし、特許文献１～４に記載されたような従来の歯列矯正ブラケットでは、歯に接着される接着面から接着剤が流れ落ちてしまい、接着力が弱くなる場合がある。
　本発明は、歯列矯正ブラケットの歯に対する接着力を強化することを目的とする。 The orthodontic bracket is typically adhered to the teeth using an adhesive. However, in the conventional orthodontic brackets described in Patent Documents 1 to 4, the adhesive may flow down from the bonding surface bonded to the teeth, and the adhesive force may be weakened.
An object of this invention is to strengthen the adhesive force with respect to the tooth of an orthodontic bracket.
　本発明は、接着剤により歯に接着される接着面を有し、前記接着面には、凹部が形成されており、少なくともその一部が開口部が窪んだ形状である歯列矯正ブラケットを提供する。 The present invention provides an orthodontic bracket having an adhesive surface that is adhered to a tooth by an adhesive, the concave portion being formed in the adhesive surface, and at least a part of which has a recessed opening. To do.
　前記凹部は、断面が四角形の中央部が膨らんだ形状を有してもよい。 The concave portion may have a shape in which a central portion having a square cross section swells.
　前記接着面は、少なくとも一部が窪んだ形状を有してもよい。 The adhesive surface may have a shape in which at least a part is recessed.
　前記接着面は、断面が前記歯とは反対側に湾曲した形状を有してもよい。 The adhesive surface may have a shape whose cross section is curved on the side opposite to the teeth.
　前記歯列矯正ブラケットは、前記接着面を有する底部と、第１開口部を介して開口し歯列矯正ワイヤーを受け入れる溝がその一端から他端に延びるように形成される軸と、前記底部に設けられ、前記軸の一端及び他端をそれぞれ支持する第１支持部及び第２支持部と、前記溝に沿って延びる第２開口部を介して開口し前記軸が貫通する中空部を有し、前記第１支持部と前記第２支持部との間に設けられ、前記第１開口部と前記第２開口部とが重なる開位置と前記第１開口部と前記第２開口部とが重ならない閉位置との間を回転可能なように、前記軸によって支持されるカバー部材と、前記カバー部材に設けられ、前記カバー部材が前記開位置に回転移動すると、前記底部に接触して前記カバー部材を停止させるストッパーとを更に備えてもよい。 The orthodontic bracket includes a bottom portion having the adhesive surface, a shaft that is opened through a first opening and receives an orthodontic wire so that the groove extends from one end to the other end, and the bottom portion. A first support portion and a second support portion provided to support one end and the other end of the shaft, respectively, and a hollow portion that is opened through a second opening extending along the groove and through which the shaft passes. An open position provided between the first support portion and the second support portion, wherein the first opening portion and the second opening portion overlap, and the first opening portion and the second opening portion overlap. A cover member supported by the shaft so as to be rotatable between the closed position and the cover member; and the cover member is provided on the cover member, and when the cover member rotates to the open position, the cover member comes into contact with the bottom portion A stopper for stopping the member There.
　また、本発明は、歯列矯正ワイヤーと、前記歯列矯正ワイヤーを保持する複数の歯列矯正ブラケットとを備え、前記複数の歯列矯正ブラケットはそれぞれ、接着剤により歯に接着される接着面を有し、前記接着面には、凹部が形成されており、少なくともその一部が開口部が窪んだ形状である歯列矯正装置を提供する。 The present invention also includes an orthodontic wire and a plurality of orthodontic brackets for holding the orthodontic wire, and each of the plurality of orthodontic brackets is bonded to a tooth with an adhesive. There is provided an orthodontic appliance in which a concave portion is formed on the adhesive surface, and at least a part of the adhesive surface has a shape in which an opening is depressed.
　本発明によれば、歯列矯正ブラケットの歯に対する接着力を強化することができる。 According to the present invention, the adhesive force of the orthodontic bracket to the teeth can be enhanced.
実施形態に係る歯列矯正装置１の一例を示す図である。It is a figure which shows an example of the orthodontic apparatus 1 which concerns on embodiment. 歯列矯正ブラケット２０の一例を示す斜視図である。2 is a perspective view showing an example of an orthodontic bracket 20. FIG. 歯列矯正ブラケット２０の一例を示す分解斜視図である。2 is an exploded perspective view showing an example of an orthodontic bracket 20. FIG. ベース部材３０の一例を示す平面図である。4 is a plan view showing an example of a base member 30. FIG. ベース部材３０の一例を示す正面図である。3 is a front view showing an example of a base member 30. FIG. ベース部材３０の一例を示す側面図である。4 is a side view showing an example of a base member 30. FIG. ベース部材３０の一例を示す底面図である。4 is a bottom view showing an example of a base member 30. FIG. 図４中の矢印Ｉ－Ｉ方向から見たベース部材３０の一例を示す断面図である。FIG. 5 is a cross-sectional view showing an example of a base member 30 as viewed from the direction of arrow II in FIG. 図４中の矢印ＩＩ－ＩＩ方向から見たベース部材３０の一例を示す断面図である。FIG. 5 is a cross-sectional view showing an example of a base member 30 viewed from the direction of arrow II-II in FIG. 図９中のＡ部の一例を示す拡大図である。It is an enlarged view which shows an example of the A section in FIG. 軸４０の一例を示す正面図である。3 is a front view showing an example of a shaft 40. FIG. 軸４０の一例を示す側面図である。3 is a side view showing an example of a shaft 40. FIG. カバー部材５０の一例を示す側面図である。4 is a side view showing an example of a cover member 50. FIG. カバー部材５０の一例を示す平面図である。4 is a plan view showing an example of a cover member 50. FIG. 図１４中の矢印ＩＩＩ－ＩＩＩ方向から見たカバー部材５０の一例を示す断面図である。It is sectional drawing which shows an example of the cover member 50 seen from the arrow III-III direction in FIG. 歯列矯正ブラケット２０の使用方法の一例を示す図である。It is a figure which shows an example of the usage method of the orthodontic bracket. カバー部材５０が開位置に移動した状態の歯列矯正ブラケット２０の一例を示す平面図である。It is a top view which shows an example of the orthodontic bracket 20 of the state which the cover member 50 moved to the open position. カバー部材５０が閉位置に移動した状態の歯列矯正ブラケット２０の一例を示す平面図である。It is a top view which shows an example of the orthodontic bracket 20 of the state which the cover member 50 moved to the closed position.
１０：歯列矯正ワイヤー
２０：歯列矯正ブラケット
３０：ベース部材
３１：底部
３２：フック
３３、３４：支持部
３５：凹部
３７、３８：突起
４０：軸
４１：溝
４２：平面部
５０：カバー部材
５１：中空部
５２：ストッパー
５５、５６：縁部
５７、５８、５９：窪み
３１２：接着面
３３３、３４３：孔
３３４、３４４：開口部
３３５、３３６、３４５、３４６：切欠き部
３５１、４１１、５１１：開口部 10: orthodontic wire 20: orthodontic bracket 30: base member 31: bottom 32: hook 33, 34: support portion 35: recess 37, 38: protrusion 40: shaft 41: groove 42: flat portion 50: cover member 51: Hollow portion 52: Stopper 55, 56: Edge portions 57, 58, 59: Recess 312: Adhesion surface 333, 343: Hole 334, 344: Openings 335, 336, 345, 346: Notch portions 351, 411, 511: opening
　図１は、本実施形態に係る歯列矯正装置１の一例を示す図である。歯列矯正装置１は、歯列の矯正に用いられる。歯列矯正装置１は、歯２の表面に装着される。この例では、歯列矯正装置１は、歯２の裏側、すなわち歯２の舌側表面に装着される。歯列矯正装置１は、歯列矯正ワイヤー１０と、複数の歯列矯正ブラケット２０とを備える。 FIG. 1 is a diagram illustrating an example of an orthodontic apparatus 1 according to the present embodiment. The orthodontic apparatus 1 is used for orthodontic correction. The orthodontic apparatus 1 is mounted on the surface of the tooth 2. In this example, the orthodontic apparatus 1 is mounted on the back side of the tooth 2, that is, on the lingual side surface of the tooth 2. The orthodontic apparatus 1 includes an orthodontic wire 10 and a plurality of orthodontic brackets 20.
　歯列矯正ワイヤー１０は、歯２に矯正力を加える。歯列矯正ワイヤー１０は、矯正後の歯列に合わせた形状を有する。例えば歯列矯正ワイヤー１０は、略アーチ形状を有する。歯列矯正ワイヤー１０は、弾性を有する素材により形成される。例えば歯列矯正ワイヤー１０は、形状記憶合金により形成され、元の形状に戻ろうとする力により徐々に歯２を移動させる。 The orthodontic wire 10 applies an orthodontic force to the teeth 2. The orthodontic wire 10 has a shape matched to the orthodontic teeth after correction. For example, the orthodontic wire 10 has a substantially arch shape. The orthodontic wire 10 is formed of an elastic material. For example, the orthodontic wire 10 is formed of a shape memory alloy, and the teeth 2 are gradually moved by a force for returning to the original shape.
　歯列矯正ワイヤー１０の断面は、例えば円形である。ただし、歯列矯正ワイヤー１０の断面形状は、円形以外の形状、例えば四角形であってもよい。歯列矯正ワイヤー１０は、従来の歯列矯正装置において一般的に用いられる歯列矯正ワイヤーよりも細くてもよい。一般的に用いられる歯列矯正ワイヤーは、少なくとも直径０．１２インチの太さを有する。これに対し、歯列矯正ワイヤー１０の太さは、例えば直径０．０８インチであってもよい。 The cross section of the orthodontic wire 10 is, for example, circular. However, the cross-sectional shape of the orthodontic wire 10 may be a shape other than a circle, for example, a quadrangle. The orthodontic wire 10 may be thinner than the orthodontic wire generally used in the conventional orthodontic apparatus. Commonly used orthodontic wires have a thickness of at least 0.12 inches in diameter. On the other hand, the thickness of the orthodontic wire 10 may be, for example, 0.08 inches in diameter.
　図２は、歯列矯正ブラケット２０の一例を示す斜視図である。図３は、歯列矯正ブラケット２０の一例を示す分解斜視図である。歯列矯正ブラケット２０は、歯２に固定され、歯列矯正ワイヤー１０を保持する。歯列矯正ブラケット２０は、所定の強度を有する素材により形成される。この所定の強度は、例えば割れたり傷が付いたりし難いような強度である。この例では、歯列矯正ブラケット２０は、金属により形成される。ただし、歯列矯正ブラケット２０の素材は、金属に限定されない。例えば歯列矯正ブラケット２０の素材としては、セラミックス又はシリコンが用いられてもよい。 FIG. 2 is a perspective view showing an example of the orthodontic bracket 20. FIG. 3 is an exploded perspective view showing an example of the orthodontic bracket 20. The orthodontic bracket 20 is fixed to the tooth 2 and holds the orthodontic wire 10. The orthodontic bracket 20 is formed of a material having a predetermined strength. This predetermined strength is, for example, such a strength that it is difficult to crack or scratch. In this example, the orthodontic bracket 20 is made of metal. However, the material of the orthodontic bracket 20 is not limited to metal. For example, ceramics or silicon may be used as the material of the orthodontic bracket 20.
　歯列矯正ブラケット２０は、従来の歯列矯正ブラケットよりも小さくてもよい。例えば図中のｘ方向を幅方向、図中のｙ方向を奥行き方向、図中のｚ方向を高さ方向と定義した場合、歯列矯正ブラケット２０のサイズは、幅２．１０ｍｍ、奥行き２．６５ｍｍ、高さ１．８４ｍｍであってもよい。ただし、歯列矯正ブラケット２０のサイズは、この寸法に限定されない。例えば歯列矯正ブラケット２０のサイズは、この寸法より小さくてもよい。 The orthodontic bracket 20 may be smaller than the conventional orthodontic bracket. For example, when the x direction in the figure is defined as the width direction, the y direction in the figure is defined as the depth direction, and the z direction in the figure is defined as the height direction, the orthodontic bracket 20 has a size of 2.10 mm in width, 2. It may be 65 mm and height 1.84 mm. However, the size of the orthodontic bracket 20 is not limited to this dimension. For example, the size of the orthodontic bracket 20 may be smaller than this dimension.
　このように歯列矯正ブラケット２０のサイズが小さい場合、歯列矯正ワイヤー１０は歯２の中心軸に近い位置で保持される。この場合、歯２を移動させるのに必要な力が小さくなるため、上述したように一般的に用いられる歯列矯正ワイヤーよりも細い歯列矯正ワイヤー１０を採用することができる。このように細い歯列矯正ワイヤー１０を用いて歯列を矯正する場合には、歯２に加えられる力が弱くなるため、歯列矯正で生じる痛みや不快感を低減することができる。また、歯２を効率的に移動させることができるため、歯列矯正の治療期間が短くなる。 Thus, when the orthodontic bracket 20 is small in size, the orthodontic wire 10 is held at a position close to the central axis of the tooth 2. In this case, since the force required to move the teeth 2 is reduced, it is possible to employ an orthodontic wire 10 that is thinner than an orthodontic wire that is generally used as described above. Thus, when correcting an orthodontics using the thin orthodontic wire 10, since the force added to the tooth 2 becomes weak, the pain and discomfort which arise by orthodontic can be reduced. Moreover, since the tooth 2 can be moved efficiently, the treatment period of orthodontics is shortened.
　歯列矯正ブラケット２０は、ベース部材３０と、軸４０と、カバー部材５０とを備える。ベース部材３０、軸４０、及びカバー部材５０は、例えば金属加工により形成される。例えばベース部材３０と軸４０とは、プレス成形により形成され、カバー部材５０は、金属粉末射出成形（Metal Injection Molding：ＭＩＭ）により形成されてもよい。 The orthodontic bracket 20 includes a base member 30, a shaft 40, and a cover member 50. The base member 30, the shaft 40, and the cover member 50 are formed by metal processing, for example. For example, the base member 30 and the shaft 40 may be formed by press molding, and the cover member 50 may be formed by metal powder injection molding (Metal-Injection-Molding: MIM).
　カバー部材５０は、軸４０の周りを回転して、図２において二点鎖線で示される閉位置と、図２において実線で示される開位置との間を移動する。カバー部材５０が開位置に回転移動されると、歯列矯正ブラケット２０は歯列矯正ワイヤー１０を受け入れ可能な状態になる。歯列矯正ワイヤー１０が歯列矯正ブラケット２０に挿入された後、カバー部材５０が閉位置に回転移動されると、歯列矯正ワイヤー１０が歯列矯正ブラケット２０内で保持される。このように、歯列矯正ブラケット２０は、カバー部材５０を回転移動させることにより、歯列矯正ワイヤー１０を歯列矯正ブラケット２０に取り付けることができる。そのため、歯列矯正ブラケット２０においては、例えば結紮線を用いて歯列矯正ワイヤー１０を歯列矯正ブラケット２０に括り付けるような作業を行わなくてもよい。 The cover member 50 rotates around the shaft 40 and moves between a closed position indicated by a two-dot chain line in FIG. 2 and an open position indicated by a solid line in FIG. When the cover member 50 is rotationally moved to the open position, the orthodontic bracket 20 is ready to receive the orthodontic wire 10. After the orthodontic wire 10 is inserted into the orthodontic bracket 20, when the cover member 50 is rotationally moved to the closed position, the orthodontic wire 10 is held in the orthodontic bracket 20. Thus, the orthodontic bracket 20 can attach the orthodontic wire 10 to the orthodontic bracket 20 by rotating the cover member 50. Therefore, in the orthodontic bracket 20, for example, it is not necessary to perform an operation of binding the orthodontic wire 10 to the orthodontic bracket 20 using a ligature wire.
　図４は、ベース部材３０の一例を示す平面図である。図５は、ベース部材３０の一例を示す正面図である。図６は、ベース部材３０の一例を示す側面図である。図７は、ベース部材３０の一例を示す底面図である。図８は、図４中の矢印Ｉ－Ｉ方向から見たベース部材３０の一例を示す断面図である。図９は、図４中の矢印ＩＩ－ＩＩ方向から見たベース部材３０の一例を示す断面図である。図１０は、図９中のＡ部の一例を示す拡大図である。ベース部材３０は、底部３１と、フック３２と、支持部３３及び３４とを備える。 FIG. 4 is a plan view showing an example of the base member 30. FIG. 5 is a front view showing an example of the base member 30. FIG. 6 is a side view showing an example of the base member 30. FIG. 7 is a bottom view showing an example of the base member 30. FIG. 8 is a cross-sectional view showing an example of the base member 30 viewed from the direction of arrow II in FIG. FIG. 9 is a cross-sectional view showing an example of the base member 30 as viewed from the direction of the arrow II-II in FIG. FIG. 10 is an enlarged view showing an example of a portion A in FIG. The base member 30 includes a bottom portion 31, a hook 32, and support portions 33 and 34.
　底部３１は、歯列矯正ブラケット２０の底を構成する。底部３１は、板状の形状を有する。図４に示すように、上方から見ると、底部３１の図中の－ｙ方向の端は、中央部が図中の矢印－ｙ方向に凸な略アーチ形状を有する。図５に示すように、底部３１は、基面３１１と、基面３１１の反対側にある接着面３１２とを有する。接着面３１２は、歯２の舌側表面に接着剤を用いて接着される。図７に示すように、接着面３１２には、複数の凹部３５と、複数の凹部３６とが形成される。 The bottom 31 constitutes the bottom of the orthodontic bracket 20. The bottom 31 has a plate shape. As shown in FIG. 4, when viewed from above, the end of the bottom 31 in the −y direction in the drawing has a substantially arch shape with the center protruding in the direction of the arrow −y in the drawing. As shown in FIG. 5, the bottom 31 has a base surface 311 and an adhesive surface 312 on the opposite side of the base surface 311. The bonding surface 312 is bonded to the lingual surface of the tooth 2 using an adhesive. As shown in FIG. 7, a plurality of recesses 35 and a plurality of recesses 36 are formed on the bonding surface 312.
　複数の凹部３５は、接着剤を保持するために形成される。複数の凹部３５は、所定のパターンで配置される。例えば複数の凹部３５は、マトリックス状に配置される。この例では、図中のｙ方向を行方向、図中のｘ方向を列方向と定義した場合、７行３列の凹部３５が所定の間隔で配置される。なお、凹部３５の数は、図７に例示した数に限定されない。凹部３５の数は、図７に例示した数より多くてもよいし、少なくてもよい。例えば、凹部３５の行の数は５であり、列の数は２であってもよい。 The plurality of recesses 35 are formed to hold the adhesive. The plurality of recesses 35 are arranged in a predetermined pattern. For example, the plurality of recesses 35 are arranged in a matrix. In this example, when the y direction in the figure is defined as the row direction and the x direction in the figure is defined as the column direction, the concave portions 35 of 7 rows and 3 columns are arranged at predetermined intervals. In addition, the number of the recessed parts 35 is not limited to the number illustrated in FIG. The number of the recesses 35 may be larger or smaller than the number illustrated in FIG. For example, the number of rows of the recesses 35 may be five and the number of columns may be two.
　各凹部３５は、開口部３５１が窄んだ形状を有する。開口部が窄んだとは、例えば開口面に平行な凹部の断面について、少なくともその一部に開口部の開口面積よりも広い断面積を有する形状として定義されるが、本発明の効果を奏する態様であればこれに限定されない。この例では、図７及び図１０に示すように、凹部３５は、開口部３５１が四角形であり、断面が四角形の中央部が膨らんだ形状であり、全体として四角柱の中央部が膨らんだ形状を有する。図１０に示すように、図中の矢印ｘ方向を幅方向と定義すると、開口部３５１の幅Ｗ１は、凹部３５の中央部の幅Ｗ２より小さい。 Each recess 35 has a shape in which the opening 351 is narrowed. The narrowed opening is defined, for example, as a shape having a cross-sectional area wider than the opening area of the opening in at least a part of the cross section of the recess parallel to the opening surface. If it is an aspect, it will not be limited to this. In this example, as shown in FIGS. 7 and 10, the recess 35 has a shape in which the opening 351 is a quadrangle, the cross section of the quadrangle is inflated, and the center of the quadrangular prism is inflated as a whole. Have As shown in FIG. 10, when the arrow x direction in the drawing is defined as the width direction, the width W1 of the opening 351 is smaller than the width W2 of the central portion of the recess 35.
　複数の凹部３６は、複数の凹部３５を作るために形成される。複数の凹部３６は、各凹部３５の周りに形成される。この例では、図７に示すように、各凹部３５の四方に所定の間隔を開けて４つの凹部３６が形成される。ただし、隣り合う２つの凹部３５の間には、１つの凹部３６だけが形成される。なお、凹部３６は、必ずしも開口部３５１の四方全てに形成されなくてもよい。例えば一部の凹部３５については、その開口部３５１の三方だけに凹部３６が形成され、残りの一方については凹部３６が形成されなくてもよい。また、凹部３６の数は、図７に例示した数に限定されない。凹部３６の数は、図７に例示した数より多くてもよいし、少なくてもよい。 The plurality of recesses 36 are formed to make a plurality of recesses 35. A plurality of recesses 36 are formed around each recess 35. In this example, as shown in FIG. 7, four recesses 36 are formed at predetermined intervals on four sides of each recess 35. However, only one recess 36 is formed between two adjacent recesses 35. Note that the recess 36 does not necessarily have to be formed on all four sides of the opening 351. For example, for some of the recesses 35, the recesses 36 may be formed only in the three sides of the opening 351, and the recesses 36 may not be formed for the remaining one. Moreover, the number of the recessed parts 36 is not limited to the number illustrated in FIG. The number of the recesses 36 may be larger or smaller than the number illustrated in FIG.
　凹部３６は、開口部３５１の辺に沿って延び、開口部が開いた形状を有する。この例では、図７及び図１０に示すように、凹部３６は、開口部が長方形であり、断面が三角形であり、全体として三角柱を倒した形状を有する。凹部３６は、開口部３５１の辺に沿って延びるような向きで設けられる。この例では、図７に示すように、図中の矢印ｘ方向に沿って開口部３５１と並ぶ凹部３６については、三角柱の高さ方向が図中の矢印ｙ方向になる向きで設けられる。一方、図中の矢印ｙ方向に沿って開口部３５１と並ぶ凹部３６については、三角柱の高さ方向が図中の矢印ｘ方向になる向きで設けられる。 The recess 36 extends along the side of the opening 351 and has a shape in which the opening is open. In this example, as shown in FIGS. 7 and 10, the recess 36 has a rectangular opening, a triangular cross section, and a shape in which a triangular prism is tilted as a whole. The recess 36 is provided in such a direction as to extend along the side of the opening 351. In this example, as shown in FIG. 7, the recesses 36 aligned with the opening 351 along the arrow x direction in the figure are provided in such a direction that the height direction of the triangular prism becomes the arrow y direction in the figure. On the other hand, the recesses 36 aligned with the opening 351 along the arrow y direction in the figure are provided in such a direction that the height direction of the triangular prism becomes the arrow x direction in the figure.
　また、接着面３１２は、接着剤を保持するために、少なくとも一部が窪んだ形状を有する。窄んだ形状とは、接着面３１２が歯２の表面に接着された状態において、その少なくとも一部が、歯２の表面に沿った基準面との間に空間を有する形状として定義されるが、本発明の効果を奏する態様であればこれに限定されない。要するに、接着面３１２は、接着剤を用いて歯２に接着されたときに、その少なくとも一部に接着剤が溜まるような形状を有していればよい。この例では、図８及び図９に示すように、接着面３１２の断面は、図中の矢印ｚ方向に湾曲した形状を有する。すなわち、接着面３１２、中央部が窪んだ形状を有する。この場合、接着面３１２の縁は、歯２に接触するものの、接着面３１２の中央部は、歯２に接触しない。 Further, the adhesive surface 312 has a shape in which at least a part thereof is depressed in order to hold the adhesive. The constricted shape is defined as a shape in which at least a part of the adhesive surface 312 is bonded to the surface of the tooth 2 and has a space between the reference surface along the surface of the tooth 2. The embodiment is not limited to this as long as the effect of the present invention is achieved. In short, the adhesive surface 312 only needs to have a shape that allows the adhesive to accumulate in at least a portion of the adhesive surface 312 when it is adhered to the tooth 2 using an adhesive. In this example, as shown in FIGS. 8 and 9, the cross section of the bonding surface 312 has a shape curved in the arrow z direction in the drawing. That is, the adhesive surface 312 has a shape with a depressed central portion. In this case, the edge of the bonding surface 312 contacts the tooth 2, but the central portion of the bonding surface 312 does not contact the tooth 2.
　支持部３３及び３４は、底部３１に設けられ、軸４０の一端及び他端をそれぞれ支持する。この例では、図４に示すように、支持部３３は、基面３１１の図中の矢印ｘ方向の端に連接し、支持部３４は、基面３１１の図中の矢印－ｘ方向の端に連接する。支持部３３と支持部３４とは、互いに対向するように設けられる。支持部３３及び３４は、いずれも歯２から離れる方向に突出する。この例では、図５に示すように、支持部３３及び３４は、図中の矢印ｚ方向に突出する。支持部３３と支持部３４とは、カバー部材５０の幅に対応する間隔を開けて配置される。なお、支持部３３及び３４は、軸４０の一端及び他端を支持するものに限定されない。支持部３３及び３４は、軸４０の一端及び他端以外の部分を支持するものであってもよい。すなわち、支持部３３及び３４は、軸４０をそれぞれ支持するものであればよい。 Support portions 33 and 34 are provided on the bottom portion 31 and support one end and the other end of the shaft 40, respectively. In this example, as shown in FIG. 4, the support portion 33 is connected to the end of the base surface 311 in the arrow x direction in the drawing, and the support portion 34 is the end of the base surface 311 in the arrow −x direction in the drawing. Articulated. The support part 33 and the support part 34 are provided so as to face each other. The support portions 33 and 34 both protrude in the direction away from the tooth 2. In this example, as shown in FIG. 5, the support portions 33 and 34 protrude in the arrow z direction in the drawing. The support part 33 and the support part 34 are arranged with an interval corresponding to the width of the cover member 50. The support portions 33 and 34 are not limited to those that support one end and the other end of the shaft 40. The support portions 33 and 34 may support portions other than one end and the other end of the shaft 40. That is, the support parts 33 and 34 should just support the axis | shaft 40, respectively.
　支持部３３は、板状の形状を有する。図６に示すように、側方から見ると、支持部３３の外縁は、円弧形状を有する。支持部３４も、支持部３３と同様の形状を有する。図５に示すように、支持部３３は、支持部３４と対向する内側面３３１と、内側面３３１の反対側にある外側面３３２とを有する。同様に、支持部３４は、支持部３３と対向する内側面３４１と、内側面３４１の反対側にある外側面３４２とを有する。 The support portion 33 has a plate shape. As shown in FIG. 6, when viewed from the side, the outer edge of the support portion 33 has an arc shape. The support part 34 also has the same shape as the support part 33. As shown in FIG. 5, the support portion 33 has an inner surface 331 that faces the support portion 34, and an outer surface 332 that is on the opposite side of the inner surface 331. Similarly, the support portion 34 has an inner surface 341 that faces the support portion 33, and an outer surface 342 that is on the opposite side of the inner surface 341.
　支持部３３及び３４には、軸方向に沿って貫通する孔３３３及び３４３がそれぞれ形成される。この例では、孔３３３は、図中の矢印ｘ方向に沿って内側面３３１から外側面３３２に貫通する。また、孔３４３は、図中の矢印ｘ方向に沿って外側面３４２から内側面３４１に貫通する。孔３３３及び３４３はいずれも、軸４０の外面に対応する形状を有する。孔３３３及び３４３には、軸４０が嵌め込まれる。孔３３３及び３４３は、開口部３３４及び３４４を有し、開口部３３４及び３４４を介してそれぞれ開口する。図４に示す開口部３３４及び３４４の開口幅Ｗ３は、歯列矯正ワイヤー１０の直径以上の大きさを有する。ただし、この開口幅Ｗ３は、軸４０の直径より小さい。 The support portions 33 and 34 are formed with holes 333 and 343 penetrating along the axial direction, respectively. In this example, the hole 333 penetrates from the inner surface 331 to the outer surface 332 along the arrow x direction in the drawing. Further, the hole 343 penetrates from the outer surface 342 to the inner surface 341 along the arrow x direction in the drawing. Both holes 333 and 343 have a shape corresponding to the outer surface of the shaft 40. The shaft 40 is fitted into the holes 333 and 343. The holes 333 and 343 have openings 334 and 344, and open through the openings 334 and 344, respectively. The opening width W3 of the openings 334 and 344 shown in FIG. 4 has a size larger than the diameter of the orthodontic wire 10. However, the opening width W3 is smaller than the diameter of the shaft 40.
　内側面３３１及び３４１上には、カバー部材５０を閉位置で固定するために、突起３７及び３８がそれぞれ設けられる。突起３７及び３８は、内側面３３１及び３４１からそれぞれ突出する。この例では、突起３７及び３８は、いずれも半球形状を有する。突起３７及び３８は、閉位置に移動したカバー部材５０と接触し、カバー部材５０を閉位置で固定する。 Projections 37 and 38 are provided on the inner side surfaces 331 and 341 in order to fix the cover member 50 in the closed position, respectively. The protrusions 37 and 38 protrude from the inner side surfaces 331 and 341, respectively. In this example, each of the protrusions 37 and 38 has a hemispherical shape. The protrusions 37 and 38 come into contact with the cover member 50 moved to the closed position, and fix the cover member 50 in the closed position.
　歯列矯正では、歯列矯正ワイヤー１０と併用し又は歯列矯正ワイヤー１０に代えて、パワーチェーン、コイルスプリング、顎間ゴム等の歯列矯正用の弾性体が用いられる場合がある。フック３２は、歯列矯正用の弾性体を保持するために用いられる。フック３２は、底部３１において歯２の根側の端に設けられる。この例では、図４に示すように、フック３２は、底部３１において図中の矢印ｙ方向の端に設けられる。フック３２は、歯列矯正用の弾性体が引っ掛けられるような形状を有する。この例では、フック３２は、図中の矢印ｘ方向及び矢印－ｘ方向に突出する突出部３２１を有する。この突出部３２１には、歯列矯正用の弾性体が引っ掛けられる。 In orthodontics, an orthodontic elastic body such as a power chain, a coil spring, or an intermaxillary rubber may be used in combination with or in place of the orthodontic wire 10. The hook 32 is used to hold an orthodontic elastic body. The hook 32 is provided at the root 31 side end of the tooth 2 at the bottom 31. In this example, as shown in FIG. 4, the hook 32 is provided at the end of the bottom 31 in the direction of the arrow y in the figure. The hook 32 has such a shape that an elastic body for orthodontics is hooked. In this example, the hook 32 has a protruding portion 321 that protrudes in the arrow x direction and the arrow -x direction in the drawing. An orthodontic elastic body is hooked on the protrusion 321.
　支持部３３及び３４において歯２の先側の端には、それぞれ切欠き部３３５及び３４５が形成される。また、支持部３３及び３４において歯２の根側の端には、それぞれ切欠き部３３６及び３４６が形成される。切欠き部３３５、３３６、３４５、及び３４６は、上述したフック３２と同様に、歯列矯正用の弾性体を保持するために用いられる。この例では、図６及び図８に示すように、切欠き部３３５及び３４５は、支持部３３及び３４の図中の矢印－ｙ方向の端において基面３１１と閉位置に移動したカバー部材５０との間の位置にそれぞれ形成される。切欠き部３３６及び３４６は、支持部３３及び３４の図中の矢印ｙ方向の端において、切欠き部３３５及び３４５から矢印ｙ方向に延びる直線と交わる位置にそれぞれ形成される。 Notches 335 and 345 are formed at the front end of the tooth 2 in the support portions 33 and 34, respectively. Further, notches 336 and 346 are formed at the root ends of the teeth 2 in the support portions 33 and 34, respectively. The notches 335, 336, 345, and 346 are used to hold an orthodontic elastic body, similar to the hook 32 described above. In this example, as shown in FIGS. 6 and 8, the notches 335 and 345 are formed by the cover member 50 moved to the base surface 311 and the closed position at the ends of the support portions 33 and 34 in the direction of the arrow −y. Are formed at positions between The notches 336 and 346 are formed at positions where the ends of the support portions 33 and 34 in the direction of the arrow y in the figure intersect with straight lines extending from the notches 335 and 345 in the direction of the arrow y.
　切欠き部３３５、３３６、３４５、及び３４６は、歯列矯正用の弾性体が引っ掛けられるような形状を有する。この例では、切欠き部３３５及び３４５は、いずれも図中の矢印ｙ方向に延び、開口部が広がった形状を有する。切欠き部３３６及び３４６は、いずれも図中の矢印－ｙ方向に延び、開口部が広がった形状を有する。切欠き部３３５、３３６、３４５、及び３４６には、歯列矯正用の弾性体が引っ掛けられる。例えば歯列矯正用の弾性体は、その端に輪部を有する。この輪部の一部は、切欠き部３３５及び３４５に引っ掛けられる。また、この輪部においてこの一部と対向する他の部分は、切欠き部３３６及び３４６に引っ掛けられる。これにより、輪部が支持部３３及び３４を取り囲むような状態で固定される。 The notches 335, 336, 345, and 346 have shapes that allow the orthodontic elastic body to be hooked. In this example, the notches 335 and 345 both have a shape that extends in the direction of the arrow y in the drawing and the opening is widened. The notches 336 and 346 both have a shape that extends in the direction of the arrow -y in the figure and the opening is widened. An orthodontic elastic body is hooked on the notches 335, 336, 345, and 346. For example, an orthodontic elastic body has a ring at its end. A part of the ring portion is hooked on the notches 335 and 345. In addition, the other portion of the ring portion facing this portion is hooked by the notches 336 and 346. Accordingly, the ring portion is fixed in a state of surrounding the support portions 33 and 34.
　図１１は、軸４０の一例を示す正面図である。図１２は、軸４０の一例を示す側面図である。軸４０は、カバー部材５０を回転可能なように支持する。軸４０は、軸方向に沿って延びる棒状の形状を有する。この例では、軸４０は、図中の矢印ｘ方向に沿って延びる円筒の一部を、図中の矢印ｘ方向に沿って切り取ったような形状を有する。この場合、図中の矢印ｘ方向が軸方向となる。 FIG. 11 is a front view showing an example of the shaft 40. FIG. 12 is a side view showing an example of the shaft 40. The shaft 40 supports the cover member 50 so as to be rotatable. The shaft 40 has a rod-like shape extending along the axial direction. In this example, the shaft 40 has a shape obtained by cutting a part of a cylinder extending along the arrow x direction in the drawing along the arrow x direction in the drawing. In this case, the arrow x direction in the figure is the axial direction.
　軸４０の外面上には、歯列矯正ワイヤー１０を受け入れる溝４１が形成される。溝４１は、軸方向の一端から他端に延びるように形成される。この例では、溝４１は、図中の矢印ｘ方向に沿って、軸４０の一端から他端に延びるように形成される。溝４１は、断面が略半円の形状を有する。溝４１は、開口部４１１を介して開口する。図１２に示す開口部４１１の開口幅Ｗ４は、歯列矯正ワイヤー１０の直径以上の大きさを有する。 A groove 41 for receiving the orthodontic wire 10 is formed on the outer surface of the shaft 40. The groove 41 is formed so as to extend from one end in the axial direction to the other end. In this example, the groove 41 is formed to extend from one end of the shaft 40 to the other end along the arrow x direction in the drawing. The groove 41 has a substantially semicircular cross section. The groove 41 opens through the opening 411. The opening width W <b> 4 of the opening 411 shown in FIG. 12 is larger than the diameter of the orthodontic wire 10.
　軸４０の外面の一部には、回り止めとして機能する平面部４２が設けられる。平面部４２は、平面形状を有する。平面部４２は、図中の矢印ｘ方向に沿って軸４０の一端から他端に延びるように設けられる。この例では、平面部４２は、円周方向において溝４１と隣り合う一方の側と他方の側とにそれぞれ設けられる。 A flat portion 42 that functions as a detent is provided on a part of the outer surface of the shaft 40. The plane part 42 has a planar shape. The flat portion 42 is provided so as to extend from one end of the shaft 40 to the other end along the direction of the arrow x in the drawing. In this example, the plane portion 42 is provided on each of one side and the other side adjacent to the groove 41 in the circumferential direction.
　図１３は、カバー部材５０の一例を示す側面図である。図１４は、カバー部材５０の一例を示す平面図である。図１５は、図１４中の矢印ＩＩＩ－ＩＩＩ方向から見たカバー部材５０の一例を示す断面図である。 FIG. 13 is a side view showing an example of the cover member 50. FIG. 14 is a plan view showing an example of the cover member 50. FIG. 15 is a cross-sectional view showing an example of the cover member 50 as viewed from the direction of arrows III-III in FIG.
　カバー部材５０は、軸４０の周りを回転移動して、溝４１の開口部４１１を開閉する。カバー部材５０は、支持部３３と支持部３４との間に設けられる。この例では、カバー部材５０の一部が支持部３３と支持部３４との間に設けられる。ただし、カバー部材５０の設置態様はこれに限定されない。カバー部材５０は、その少なくとも一部が支持部３３と支持部３４との間に設けられればよい。カバー部材５０は、軸４０の半径方向に沿って、図中の矢印ｙ方向の基端から図中の矢印－ｙ方向の先端に延びる形状を有する。図１４に示すように、上方から見ると、カバー部材５０は、略Ｔ字の形状を有する。 The cover member 50 rotates around the shaft 40 to open and close the opening 411 of the groove 41. The cover member 50 is provided between the support part 33 and the support part 34. In this example, a part of the cover member 50 is provided between the support part 33 and the support part 34. However, the installation mode of the cover member 50 is not limited to this. It is sufficient that at least a part of the cover member 50 is provided between the support portion 33 and the support portion 34. The cover member 50 has a shape extending along the radial direction of the shaft 40 from the proximal end in the arrow y direction in the figure to the distal end in the arrow -y direction in the figure. As shown in FIG. 14, when viewed from above, the cover member 50 has a substantially T-shape.
　カバー部材５０は、基端領域５０１と、アーム領域５０２と、先端領域５０３とを有する。基端領域５０１は、カバー部材５０の基端を含む領域である。先端領域５０３は、カバー部材５０の先端を含む領域である。アーム領域５０２は、基端領域５０１と先端領域５０３との間の領域である。 The cover member 50 has a proximal end region 501, an arm region 502, and a distal end region 503. The proximal end region 501 is a region including the proximal end of the cover member 50. The tip region 503 is a region including the tip of the cover member 50. The arm region 502 is a region between the proximal end region 501 and the distal end region 503.
　図１３に示すカバー部材５０の軸心に対応する位置Ｃ２から先端領域５０３の図中の矢印ｙ方向の端までの長さは、図６に示す支持部３３及び３４の軸心に対応する位置Ｃ１から軸４０の半径方向において最も離れた外縁までの長さよりも大きい。したがって、先端領域５０３は、軸４０の半径方向において支持部３３及び３４の外側に位置する。また、カバー部材５０が閉位置に移動すると、基面３１１の図中の矢印－ｙ方向の端はカバー部材５０により覆われる。これにより、閉位置においてカバー部材５０と基面３１１との間の隙間に異物が入るのが防止される。 The length from the position C2 corresponding to the axis of the cover member 50 shown in FIG. 13 to the end of the tip region 503 in the arrow y direction in the drawing is the position corresponding to the axes of the support portions 33 and 34 shown in FIG. It is larger than the length from C1 to the outermost edge that is farthest in the radial direction of the shaft 40. Accordingly, the tip region 503 is located outside the support portions 33 and 34 in the radial direction of the shaft 40. When the cover member 50 is moved to the closed position, the end of the base surface 311 in the direction of the arrow −y in the figure is covered with the cover member 50. This prevents foreign matter from entering the gap between the cover member 50 and the base surface 311 in the closed position.
　基端領域５０１は、断面が略Ｃ字状の略筒状の形状を有する。基端領域５０１は、軸方向に貫通する中空部５１を有する。この例では、中空部５１は、図中の矢印ｘ方向に沿って基端領域５０１の内部を貫通する。中空部５１は、軸４０の外周面に対応する形状を有する。中空部５１には、軸４０が貫通する。また、中空部５１は、溝４１に沿って延びる開口部５１１を有し、開口部５１１を介して開口する。この例では、開口部５１１は、図中の矢印ｘ方向に沿って、基端領域５０１の一端から他端に延びる。図１３に示す開口部５１１の開口幅Ｗ５は、歯列矯正ワイヤー１０の直径以上の大きさを有する。ただし、この開口幅Ｗ５は、軸４０の外径よりも小さい。 The proximal end region 501 has a substantially cylindrical shape with a substantially C-shaped cross section. The proximal end region 501 has a hollow portion 51 that penetrates in the axial direction. In this example, the hollow part 51 penetrates the inside of the base end area | region 501 along the arrow x direction in a figure. The hollow portion 51 has a shape corresponding to the outer peripheral surface of the shaft 40. The shaft 40 passes through the hollow portion 51. The hollow portion 51 has an opening 511 extending along the groove 41 and opens through the opening 511. In this example, the opening 511 extends from one end of the proximal end region 501 to the other end along the arrow x direction in the drawing. The opening width W <b> 5 of the opening 511 shown in FIG. 13 has a size larger than the diameter of the orthodontic wire 10. However, the opening width W5 is smaller than the outer diameter of the shaft 40.
　上述したように、カバー部材５０は、図２において二点鎖線で示される閉位置と、図２において実線で示される開位置との間を回転移動する。この開位置は、溝４１の開口部４１１と中空部５１の開口部５１１とが重なる位置である。一方、この閉位置は、これらの開口部４１１及び５１１が重ならない位置である。 As described above, the cover member 50 rotates between the closed position indicated by the two-dot chain line in FIG. 2 and the open position indicated by the solid line in FIG. This open position is a position where the opening 411 of the groove 41 and the opening 511 of the hollow portion 51 overlap. On the other hand, this closed position is a position where these openings 411 and 511 do not overlap.
　基端領域５０１の外面上には、カバー部材５０を開位置で停止させるために、ストッパー５２が設けられる。ストッパー５２は、カバー部材５０の外面から突出する。ストッパー５２は、基端領域５０１の外面上において、カバー部材５０が開位置に移動したときに基面３１１に接触する位置に設けられる。この例では、ストッパー５２は、図中の矢印ｘ方向に沿って、カバー部材５０の一端から他端に延びるように設けられる。 A stopper 52 is provided on the outer surface of the proximal end region 501 in order to stop the cover member 50 at the open position. The stopper 52 protrudes from the outer surface of the cover member 50. The stopper 52 is provided on the outer surface of the base end region 501 at a position where it comes into contact with the base surface 311 when the cover member 50 moves to the open position. In this example, the stopper 52 is provided so as to extend from one end to the other end of the cover member 50 along the arrow x direction in the drawing.
　アーム領域５０２は、略楔形状を有する。図１３に示すように、側面から見ると、アーム領域５０２の図中の矢印ｚ方向の縁は、図中の矢印－ｙ方向に向かうほど低くなるように傾斜する。図中の矢印ｚ方向を厚さ方向と定義すると、アーム領域５０２の厚さは、図中の矢印ｙ方向の端が最も大きく、図中の矢印－ｙ方向に至るにつれて徐々に小さくなる。アーム領域５０２は、閉位置において内側面３３１と対向する側面５０４と、閉位置において内側面３４１と対向する側面５０５と、閉位置において基面３１１と対向する底面５０６とを有する。 The arm region 502 has a substantially wedge shape. As shown in FIG. 13, when viewed from the side, the edge of the arm region 502 in the direction of arrow z in the figure is inclined so as to become lower toward the direction of arrow -y in the figure. If the arrow z direction in the figure is defined as the thickness direction, the thickness of the arm region 502 is the largest at the end in the arrow y direction in the figure and gradually decreases as it reaches the arrow -y direction in the figure. The arm region 502 has a side surface 504 that faces the inner side surface 331 in the closed position, a side surface 505 that faces the inner side surface 341 in the closed position, and a bottom surface 506 that faces the base surface 311 in the closed position.
　側面５０４及び５０５上には、突起３７及び３８が挿入される窪み５３及び５４がそれぞれ形成される。窪み５３及び５４は、閉位置において突起３７及び３８と対向する位置にそれぞれ形成される。窪み５３及び５４は、突起３７及び３８に対応する形状をそれぞれ有する。カバー部材５０が閉位置に移動すると、突起３７及び３８が窪み５３及び５４にそれぞれ挿入される。 On the side surfaces 504 and 505, depressions 53 and 54 into which the protrusions 37 and 38 are inserted are formed, respectively. The depressions 53 and 54 are formed at positions facing the protrusions 37 and 38 in the closed position, respectively. The recesses 53 and 54 have shapes corresponding to the protrusions 37 and 38, respectively. When the cover member 50 is moved to the closed position, the protrusions 37 and 38 are inserted into the recesses 53 and 54, respectively.
　アーム領域５０２は、側面５０４と底面５０６との間に縁部５５を有し、側面５０５と底面５０６との間に縁部５６を有する。縁部５５及び５６は、それぞれカバー部材５０が開位置から閉位置へと移動する間に突起３７及び３８に接触する。縁部５５及び５６は、いずれも角を取った形状を有する。この例では、縁部５５及び５６は、いずれも面取りされた形状を有する。 The arm region 502 has an edge portion 55 between the side surface 504 and the bottom surface 506, and has an edge portion 56 between the side surface 505 and the bottom surface 506. The edges 55 and 56 contact the protrusions 37 and 38 while the cover member 50 moves from the open position to the closed position, respectively. The edges 55 and 56 both have a rounded shape. In this example, the edges 55 and 56 both have a chamfered shape.
　先端領域５０３は、カバー部材５０を回転させるときに用いられる。先端領域５０３は、軸方向に突出する。この例では、先端領域５０３は、図中の矢印ｘ方向及び－ｘ方向に突出する。先端領域５０３は、軸方向と交わる側面５０７及び５０８と、閉位置において歯２と対向する底面５０９とを有する。この例では、側面５０７は、先端領域５０３の図中の矢印－ｘ方向の端に位置する。側面５０８は、先端領域５０３の図中の矢印ｘ方向の端に位置する。 The tip region 503 is used when the cover member 50 is rotated. The tip region 503 protrudes in the axial direction. In this example, the tip region 503 protrudes in the arrow x direction and the −x direction in the drawing. The tip region 503 has side surfaces 507 and 508 that intersect the axial direction, and a bottom surface 509 that faces the teeth 2 in the closed position. In this example, the side surface 507 is located at the end of the tip region 503 in the direction of the arrow −x in the drawing. The side surface 508 is located at the end of the tip region 503 in the direction of the arrow x in the drawing.
　カバー部材５０を回転させる作業には、ピンセット等の専用の器具が用いられる。側面５０７及び５０８には、この器具が挿入される窪み５７及び５８がそれぞれ形成される。窪み５７及び５８は、いずれもこの器具に対応する形状を有する。 For the work of rotating the cover member 50, a dedicated instrument such as tweezers is used. The side surfaces 507 and 508 are respectively formed with depressions 57 and 58 into which the instrument is inserted. Both indentations 57 and 58 have a shape corresponding to this instrument.
　底面５０９には、窪み５９が形成される。窪み５９は、窪み５７及び５８と同様に、カバー部材５０を回転させる作業に用いられる専用の器具が挿入される。ただし、窪み５９は、例えば窪み５７及び５８が使えない場合に、窪み５７及び５８の代わりに応急的に用いられる。この例では、窪み５９は、底面５０９の中央部において、図中の矢印ｘ方向に沿って先端領域５０３の一端から他端に延びるように形成される。 A depression 59 is formed on the bottom surface 509. As with the recesses 57 and 58, a dedicated instrument used for the operation of rotating the cover member 50 is inserted into the recess 59. However, the depression 59 is used as an emergency instead of the depressions 57 and 58 when the depressions 57 and 58 cannot be used, for example. In this example, the recess 59 is formed at the center of the bottom surface 509 so as to extend from one end to the other end of the tip region 503 along the arrow x direction in the drawing.
　次に、図３を参照して、歯列矯正ブラケット２０の組み立て方法について説明する。まず、カバー部材５０は、支持部３３と支持部３４との間において、孔３４３、中空部５１、及び孔３３３が図中の矢印ｘ方向に沿って並ぶような状態で保持される。この状態において、軸４０が図中の矢印－ｘ方向に沿って外側から孔３３３に通される。そして、軸４０は、そのまま図中の矢印－ｘ方向に沿って中空部５１に通された後、内側から孔３４３に嵌め込まれる。なお、図３に示す例とは逆に、軸４０が図中の矢印ｘ方向に沿って外側から孔３４３に通されて、内側から孔３３３に嵌め込まれてもよい。このようにして、歯列矯正ブラケット２０が組み立てられる。 Next, a method for assembling the orthodontic bracket 20 will be described with reference to FIG. First, the cover member 50 is held between the support portion 33 and the support portion 34 so that the hole 343, the hollow portion 51, and the hole 333 are aligned along the arrow x direction in the drawing. In this state, the shaft 40 is passed through the hole 333 from the outside along the arrow -x direction in the drawing. Then, the shaft 40 is directly passed through the hollow portion 51 along the arrow -x direction in the figure, and then fitted into the hole 343 from the inside. In contrast to the example shown in FIG. 3, the shaft 40 may be passed through the hole 343 from the outside along the direction of the arrow x in the drawing and fitted into the hole 333 from the inside. In this way, the orthodontic bracket 20 is assembled.
　上述したように、開口部３３４及び３４４の開口幅Ｗ３は、軸４０の直径より小さいため、開口部３３４及び３４４からの軸４０の抜け出しが防止される。同様に、開口部５１１の開口幅Ｗ５は、軸４０の外径よりも小さいため、開口部５１１からの軸４０の抜け出しが防止される。また、軸４０には平面部４２が設けられ、孔３３３及び孔３４３はいずれもこの平面部４２に対応する形状を有するため、孔３３３及び孔３４３の中での軸４０のつれ回りが防止される。 As described above, since the opening width W3 of the openings 334 and 344 is smaller than the diameter of the shaft 40, the shaft 40 is prevented from coming off from the openings 334 and 344. Similarly, since the opening width W5 of the opening 511 is smaller than the outer diameter of the shaft 40, the shaft 40 is prevented from coming off from the opening 511. Further, since the shaft 40 is provided with a flat surface portion 42, and the holes 333 and 343 both have shapes corresponding to the flat surface portion 42, the shaft 40 is prevented from being swung in the holes 333 and 343. The
　この歯列矯正ブラケット２０においては、支持部３３及び支持部３４に軸４０が嵌め込まれる孔３３３及び３４３が形成されている。そのため、軸４０を孔３３３及び３４３に嵌め込むだけで、歯列矯正ブラケット２０を容易に組み立てることができる。 In the orthodontic bracket 20, holes 333 and 343 into which the shaft 40 is fitted into the support portion 33 and the support portion 34 are formed. Therefore, the orthodontic bracket 20 can be easily assembled only by fitting the shaft 40 into the holes 333 and 343.
　図１６は、歯列矯正ブラケット２０の使用方法の一例を示す図である。図１７は、カバー部材５０が開位置に移動した状態の歯列矯正ブラケット２０の一例を示す平面図である。図１８は、カバー部材５０が閉位置に移動した状態の歯列矯正ブラケット２０の一例を示す平面図である。 FIG. 16 is a diagram illustrating an example of a method of using the orthodontic bracket 20. FIG. 17 is a plan view showing an example of the orthodontic bracket 20 with the cover member 50 moved to the open position. FIG. 18 is a plan view showing an example of the orthodontic bracket 20 with the cover member 50 moved to the closed position.
　まず、医療従事者は、歯列矯正ブラケット２０の接着面３１２を、接着剤を用いて歯２の舌側表面に接着させる。このとき、歯列矯正ブラケット２０は、フック３２が歯２の根側の端に位置し、切欠き部３３５及び３４５が歯２の先側の端に位置するような向きで接着される。また、初期状態において、カバー部材５０は閉位置にある。この閉位置において、カバー部材５０の先端は、歯２の先側の端に位置する。 First, the medical staff adheres the adhesive surface 312 of the orthodontic bracket 20 to the lingual surface of the tooth 2 using an adhesive. At this time, the orthodontic bracket 20 is bonded in such an orientation that the hook 32 is located at the root end of the tooth 2 and the notches 335 and 345 are located at the tip end of the tooth 2. In the initial state, the cover member 50 is in the closed position. In the closed position, the tip of the cover member 50 is located at the tip end of the tooth 2.
　接着面３１２に接着剤が付けられると、凹部３５に接着剤が入る。ここで、図１０に示すように、凹部３５の開口部３５１は窄まっているため、接着剤が凹部３５内に保持される。さらに、図８及び図９に示すように、接着面３１２の中央部は窪んでいるため、この中央部にも接着剤が保持される。接着剤が硬化すると、接着面３１２が歯２の表面に接着される。このとき、接着剤が接着面３１２の凹部３５及び中央部に保持されているため、歯列矯正ブラケット２０の歯２に対する接着力が強化される。 When the adhesive is applied to the adhesive surface 312, the adhesive enters the recess 35. Here, as shown in FIG. 10, since the opening 351 of the recess 35 is narrowed, the adhesive is held in the recess 35. Further, as shown in FIGS. 8 and 9, since the central portion of the bonding surface 312 is depressed, the adhesive is also held in this central portion. When the adhesive is cured, the bonding surface 312 is bonded to the surface of the tooth 2. At this time, since the adhesive is held in the concave portion 35 and the central portion of the bonding surface 312, the adhesion force of the orthodontic bracket 20 to the teeth 2 is strengthened.
　続いて、医療従事者は、ピンセット等の器具を窪み５７又は５８に挿入して、カバー部材５０を図中の時計回りに回転させる。このとき、器具が窪み５７又は５８内で支えとめられるため、カバー部材５０を回転させる作業が容易になる。カバー部材５０は、回転させられて閉位置から開位置へと移動する。 Subsequently, the medical staff inserts an instrument such as tweezers into the recess 57 or 58 and rotates the cover member 50 in the clockwise direction in the drawing. At this time, since the instrument is supported in the recess 57 or 58, the operation of rotating the cover member 50 is facilitated. The cover member 50 is rotated to move from the closed position to the open position.
　カバー部材５０が開位置に回転移動すると、ストッパー５２が基面３１１に接触し、カバー部材５０が停止する。このように、ストッパー５２が設けられることにより、開位置を超えたカバー部材５０の回転が防止されるため、カバー部材５０を容易に開位置に回転移動させることができる。また、カバー部材５０はストッパー５２により開位置で停止されるため、例えばカバー部材５０を開位置で押えておかなくてもよい。 When the cover member 50 is rotated to the open position, the stopper 52 comes into contact with the base surface 311 and the cover member 50 stops. Thus, since the stopper 52 is provided, rotation of the cover member 50 beyond the open position is prevented, so that the cover member 50 can be easily rotated to the open position. Further, since the cover member 50 is stopped at the open position by the stopper 52, for example, the cover member 50 may not be pressed at the open position.
　カバー部材５０が開位置に回転移動すると、図１７に示すように、カバー部材５０の開口部５１１、支持部３３の開口部３３４、及び支持部３４の開口部３４４は、図中の矢印ｘ方向に沿って並ぶ。また、これらの開口部５１１、３３４、及び３４４と、溝４１の開口部４１１とがそれぞれ重なるため、溝４１が開口部３３４、３４４、及び５１１を介して外部に開いた状態になる。上述したように、開口部３３４及び３４４の開口幅Ｗ３、開口部４１１の開口幅Ｗ４、及び開口部５１１の開口幅Ｗ５は、いずれも歯列矯正ワイヤー１０の直径以上の大きさを有する。そのため、開口部５１１、３３４、及び３４４を介して溝４１に歯列矯正ワイヤー１０を挿入することができる。このようにして溝４１が開口すると、図１６に示すように、医療従事者は、開口部５１１、３３４、及び３４４を介して溝４１に歯列矯正ワイヤー１０を挿入する。 When the cover member 50 is rotationally moved to the open position, as shown in FIG. 17, the opening 511 of the cover member 50, the opening 334 of the support 33, and the opening 344 of the support 34 are in the direction of the arrow x in the figure. Line up along. In addition, since the openings 511, 334, and 344 overlap with the opening 411 of the groove 41, the groove 41 is opened to the outside through the openings 334, 344, and 511. As described above, the opening width W3 of the openings 334 and 344, the opening width W4 of the opening 411, and the opening width W5 of the opening 511 are all larger than the diameter of the orthodontic wire 10. Therefore, the orthodontic wire 10 can be inserted into the groove 41 through the openings 511, 334, and 344. When the groove 41 is opened in this manner, as shown in FIG. 16, the medical staff inserts the orthodontic wire 10 into the groove 41 through the openings 511, 334, and 344.
　続いて、医療従事者は、カバー部材５０は図中の反時計回りに回転させる。このとき、カバー部材５０の縁部５５及び５６は、突起３７及び３８にそれぞれ接触する。しかし、図１５に示すように、縁部５５及び５６は、いずれも角を取った形状を有するため、この接触による摩耗や破損が防止される。カバー部材５０は、回転させられて開位置から閉位置へと移動する。 Subsequently, the medical worker rotates the cover member 50 counterclockwise in the drawing. At this time, the edges 55 and 56 of the cover member 50 are in contact with the protrusions 37 and 38, respectively. However, as shown in FIG. 15, since the edges 55 and 56 both have a rounded shape, wear and damage due to this contact are prevented. The cover member 50 is rotated to move from the open position to the closed position.
　カバー部材５０が閉位置に回転移動すると、図１８に示すように、突起３７及び３８が窪み５３及び５４にそれぞれ挿入される。これにより、カバー部材５０が閉位置で固定される。このように、カバー部材５０の固定に突起３７及び３８が用いられる場合には、固定の強度が増すため、カバー部材５０が意図せず回転して溝４１が開口し、歯列矯正ワイヤー１０が歯列矯正ブラケット２０から外れるのが防止される。 When the cover member 50 is rotated to the closed position, the protrusions 37 and 38 are inserted into the recesses 53 and 54, respectively, as shown in FIG. Thereby, the cover member 50 is fixed in the closed position. As described above, when the protrusions 37 and 38 are used for fixing the cover member 50, the fixing strength increases. Therefore, the cover member 50 rotates unintentionally to open the groove 41, and the orthodontic wire 10 Disengagement from the orthodontic bracket 20 is prevented.
　閉位置においては、溝４１の開口部４１１とカバー部材５０の開口部５１１とが重ならないため、溝４１が閉じた状態になる。これにより、歯列矯正ワイヤー１０が溝４１から抜け出さずに、歯列矯正ブラケット２０内に保持される。 At the closed position, the opening 411 of the groove 41 and the opening 511 of the cover member 50 do not overlap with each other, so that the groove 41 is closed. Thereby, the orthodontic wire 10 is held in the orthodontic bracket 20 without coming out of the groove 41.
　以上説明した実施形態によれば、接着面３１２の凹部３５及び中央部に接着剤が保持されるため、接着面３１２に凹部３５がない場合や接着面３１２が平面である場合に比べて、歯２に対する歯列矯正ブラケット２０の接着力が強化される。また、カバー部材５０を回転移動させる操作により、溝４１が開閉され、歯列矯正ワイヤー１０を歯列矯正ブラケット２０に取り付けることができる。よって、歯列矯正ワイヤー１０を歯列矯正ブラケット２０に取り付ける作業が容易になる。 According to the embodiment described above, since the adhesive is held in the concave portion 35 and the central portion of the bonding surface 312, the tooth is compared with the case where the bonding surface 312 does not have the concave portion 35 or the bonding surface 312 is flat. The adhesive force of the orthodontic bracket 20 to 2 is strengthened. Further, the groove 41 is opened and closed by the operation of rotating the cover member 50, and the orthodontic wire 10 can be attached to the orthodontic bracket 20. Therefore, the operation | work which attaches the orthodontic wire 10 to the orthodontic bracket 20 becomes easy.
変形例
　本発明は上述した実施形態に限定されない。上述した実施形態に対し、種々の変形がなされてもよい。また、以下の変形例が組み合わせて実施されてもよい。 The present invention is not limited to the above-described embodiment. Various modifications may be made to the above-described embodiment. Moreover, the following modifications may be implemented in combination.
　上述した実施形態では、歯列矯正装置１は舌側矯正に使用されていたが、歯列矯正装置１は唇側矯正に使用されてもよい。この場合、歯列矯正ブラケット２０は、歯２の表側、すなわち歯２の唇側表面に接着される。 In the above-described embodiment, the orthodontic apparatus 1 is used for lingual correction, but the orthodontic apparatus 1 may be used for labial correction. In this case, the orthodontic bracket 20 is bonded to the front side of the tooth 2, that is, the labial surface of the tooth 2.
　接着面３１２の凹部３５の形状は、上述した実施形態において説明した形状に限定されない。凹部３５は、開口部３５１が窄んだ形状であれば、他の形状であってもよい。例えば凹部３５は、その底から開口部３５１に至るにつれて徐々に窄んだ形状を有していてもよい。この場合、凹部３５の底の幅は、図１０に示す凹部３５の中央部の幅Ｗ１よりも大きくなる。他の例において、凹部３５は、開口部が円形であり、断面が四角形の中央部が膨らんだ形状であり、全体として円柱の中央部が膨らんだ形状を有していてもよい。 The shape of the recess 35 of the bonding surface 312 is not limited to the shape described in the above-described embodiment. The recess 35 may have another shape as long as the opening 351 is constricted. For example, the recess 35 may have a shape that gradually narrows from the bottom to the opening 351. In this case, the width of the bottom of the concave portion 35 is larger than the width W1 of the central portion of the concave portion 35 shown in FIG. In another example, the recess 35 may have a circular shape with an opening having a circular shape, a central portion having a square cross section, and a central portion having a circular shape as a whole.
　また、凹部３５は、必ずしも開口部３５１の全てが窄んだ形状である必要はない。凹部３５は、開口部３５１の少なくとも一部が窄んだ形状であればよい。例えば凹部３５は、開口部３５１の二辺又は三辺だけが窪み、残りの二辺又は一辺は広がった形状であってもよい。なお、開口部３５１が窄んだ形状とは、開口部３５１の幅が、凹部３５の他の部分の幅よりも小さくなるような形状をいう。この他の部分は、凹部３５の中央部であってもよいし、底部であってもよいし、凹部３５において幅が最も大きくなる部分であってもよい。また、この場合、凹部３６は、開口部３５１の周りの少なくとも一方に形成されればよい。 Further, the recess 35 does not necessarily have a shape in which all of the opening 351 is narrowed. The recess 35 may have a shape in which at least a part of the opening 351 is narrowed. For example, the recess 35 may have a shape in which only two or three sides of the opening 351 are recessed and the remaining two or one side is widened. The shape in which the opening 351 is narrowed refers to a shape in which the width of the opening 351 is smaller than the width of the other part of the recess 35. The other part may be the central part of the recess 35, the bottom part, or the part having the largest width in the recess 35. In this case, the recess 36 may be formed in at least one around the opening 351.
　さらに、必ずしも複数の凹部３５の全てが、開口部３５１が窄んだ形状を有していなくてもよい。複数の凹部３５の一部だけが、開口部３５１が窄んだ形状を有し、残りの凹部３５については、開口部３５１が窄んだ形状でなくてもよい。 Furthermore, it is not always necessary that all of the plurality of recesses 35 have a shape in which the opening 351 is constricted. Only a part of the plurality of recesses 35 has a shape in which the opening 351 is narrowed, and the remaining recesses 35 may not have a shape in which the opening 351 is narrowed.
　歯列矯正ブラケット２０は、必ずしも上述した実施形態で説明した構成を全て備えていなくてもよい。例えば、歯列矯正ブラケット２０は、フック３２を備えていなくてもよい。他の例において、カバー部材５０には、窪み５３及び５４が形成されなくてもよい。この場合、カバー部材５０が閉位置に移動すると、突起３７及び３８は、カバー部材５０の側面５０４及び５０５に押し当てられる。これにより、カバー部材５０が閉位置で固定されてもよい。他の例において、突起３７及び３８のうちいずれか一方だけが設けられてもよい。他の例において、カバー部材５０には、窪み５７、５８、及び５９のうちいずれか１つ又は２つだけが形成されてもよい。 The orthodontic bracket 20 does not necessarily have to include all the configurations described in the above-described embodiments. For example, the orthodontic bracket 20 may not include the hook 32. In another example, the recesses 53 and 54 may not be formed in the cover member 50. In this case, when the cover member 50 moves to the closed position, the protrusions 37 and 38 are pressed against the side surfaces 504 and 505 of the cover member 50. Thereby, the cover member 50 may be fixed in the closed position. In another example, only one of the protrusions 37 and 38 may be provided. In another example, the cover member 50 may be formed with any one or two of the recesses 57, 58, and 59.
　上述した実施形態において説明した歯列矯正ブラケット２０の各部材の形状、位置、配置、寸法、素材、及び成形方法はあくまで例示であり、本発明はこれに限定されない。また、上述した実施形態では、歯列矯正ブラケット２０のブラケット本体は、ベース部材３０と、軸４０と、カバー部材５０とにより構成されていた。しかし、ブラケット本体の構成は、これに限定されない。例えばブラケット本体は、歯列矯正ワイヤー１０が通される孔を有していてもよい。他の例において、ブラケット本体は、歯列矯正ワイヤー１０を受け入れる溝を有し、結紮線を用いて歯列矯正ワイヤー１０がブラケット本体に括り付けられてもよい。他の例において、ブラケット本体は、歯列矯正ワイヤー１０を受け入れる溝と、スライド移動して溝を開閉するシャッターとを備えていてもよい。このように、ブラケット本体は、どのような方式で歯列矯正ワイヤー１０を保持するものであってもよい。 The shape, position, arrangement, dimensions, material, and molding method of each member of the orthodontic bracket 20 described in the above-described embodiment are merely examples, and the present invention is not limited thereto. In the above-described embodiment, the bracket body of the orthodontic bracket 20 is configured by the base member 30, the shaft 40, and the cover member 50. However, the configuration of the bracket body is not limited to this. For example, the bracket body may have a hole through which the orthodontic wire 10 is passed. In another example, the bracket body may have a groove for receiving the orthodontic wire 10, and the orthodontic wire 10 may be tied to the bracket body using a ligature wire. In another example, the bracket body may include a groove that receives the orthodontic wire 10 and a shutter that slides to open and close the groove. Thus, the bracket body may hold the orthodontic wire 10 by any method.
　要するに、本発明の歯列矯正ブラケットは、接着剤により歯に接着される接着面を有し、接着面には凹部が形成されており、少なくともその一部が開口部が窄んだ形状であればよい。 In short, the orthodontic bracket of the present invention has an adhesive surface that is bonded to the teeth by an adhesive, and the adhesive surface has a recess, and at least a part of the opening has a narrowed shape. That's fine.

Claims (6)

  1. 　接着剤により歯に接着される接着面を有し、
    　前記接着面には凹部が形成されており、少なくともその一部が開口部が窄んだ形状である
    　歯列矯正ブラケット。     Having an adhesive surface that is bonded to the tooth by an adhesive
    An orthodontic bracket in which a concave portion is formed in the adhesive surface, and at least a part of the adhesive surface has a shape with a narrowed opening.
  2. 　前記凹部は、断面が四角形の中央部が膨らんだ形状を有する
    　請求項１に記載の歯列矯正ブラケット。     The orthodontic bracket according to claim 1, wherein the concave portion has a shape in which a central portion having a quadrangular cross section swells.
  3. 　前記接着面は、少なくとも一部が窪んだ形状を有する
    　請求項１又は２に記載の歯列矯正ブラケット。     The orthodontic bracket according to claim 1, wherein the adhesive surface has a shape in which at least a part is recessed.
  4. 　前記接着面は、断面が前記歯とは反対側に湾曲した形状を有する
    　請求項３に記載の歯列矯正ブラケット。     The orthodontic bracket according to claim 3, wherein the adhesive surface has a shape in which a cross section is curved to the side opposite to the teeth.
  5. 　前記接着面を有する底部と、
    　第１開口部を介して開口する溝がその一端から他端に延びるように形成される軸と、
    　前記底部に設けられ、前記軸をそれぞれ支持する第１支持部及び第２支持部と、
    　前記溝に沿って延びる第２開口部を介して開口し前記軸が貫通する中空部を有し、少なくともその一部が前記第１支持部と前記第２支持部との間に設けられ、前記第１開口部と前記第２開口部とが重なる開位置と前記第１開口部と前記第２開口部とが重ならない閉位置との間を回転可能なように、前記軸によって支持されるカバー部材と、
    　前記カバー部材に設けられ、前記カバー部材が前記開位置に回転移動すると、前記底部に接触して前記カバー部材を停止させるストッパーとを更に備える
    　請求項１から４のいずれか１項に記載の歯列矯正ブラケット。     A bottom having the adhesive surface;
    A shaft formed so that a groove opened through the first opening extends from one end to the other end;
    A first support part and a second support part, which are provided on the bottom part and respectively support the shaft;
    A hollow portion that opens through a second opening extending along the groove and through which the shaft passes, at least a portion of which is provided between the first support portion and the second support portion, A cover supported by the shaft so as to be rotatable between an open position where the first opening and the second opening overlap and a closed position where the first opening and the second opening do not overlap. Members,
    The tooth according to any one of claims 1 to 4, further comprising a stopper that is provided on the cover member and stops when the cover member rotates and moves to the open position and contacts the bottom portion. Column orthodontic bracket.
  6. 　歯列矯正ワイヤーと、
    　前記歯列矯正ワイヤーを保持する複数の歯列矯正ブラケットとを備え、
    　前記複数の歯列矯正ブラケットはそれぞれ、
    　接着剤により歯に接着される接着面を有し、
    　前記接着面には、凹部が形成されており、少なくともその一部が開口部が窪んだ形状である
    　歯列矯正装置。     Orthodontic wire,
    A plurality of orthodontic brackets for holding the orthodontic wires;
    Each of the plurality of orthodontic brackets is
    Having an adhesive surface that is bonded to the tooth by an adhesive;
    An orthodontic apparatus in which a concave portion is formed on the adhesive surface, and at least a part of the adhesive surface has a shape in which an opening is depressed.
PCT/JP2017/021007 2017-06-06 2017-06-06 Orthodontic bracket and orthodontic device WO2018225161A1 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
PCT/JP2017/021007 WO2018225161A1 (en) 2017-06-06 2017-06-06 Orthodontic bracket and orthodontic device

Publications (1)

Publication Number Publication Date
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PCT/JP2017/021007 WO2018225161A1 (en) 2017-06-06 2017-06-06 Orthodontic bracket and orthodontic device

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371337A (en) * 1981-05-20 1983-02-01 Pletcher Erwin Carroll Orthodontic bracket
JP2000096103A (en) * 1998-09-18 2000-04-04 Injex Corp Method of forming undercut of metallic powder injection molded goods and metallic powder injection molded goods having undercut
WO2012020810A1 (en) * 2010-08-12 2012-02-16 デンツプライ三金株式会社 Polyamide orthodontic bracket

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371337A (en) * 1981-05-20 1983-02-01 Pletcher Erwin Carroll Orthodontic bracket
JP2000096103A (en) * 1998-09-18 2000-04-04 Injex Corp Method of forming undercut of metallic powder injection molded goods and metallic powder injection molded goods having undercut
WO2012020810A1 (en) * 2010-08-12 2012-02-16 デンツプライ三金株式会社 Polyamide orthodontic bracket

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