JPH0644518U - Orthodontic bracket - Google Patents

Abstract

(57) [Summary] [Structure] A slot made of metal, in which a slot 6c having a rectangular cross-section is formed in the slot member engaging groove 3 of the bracket body 2 made of plastic or ceramic by being inclined by a predetermined inclination angle θ. The member 6 is fitted. A round hole 4 is provided on the upper surface of the bottom of the bracket body 2 and a protrusion 6b is provided on the lower surface of the slot body 6a to restrain the movement of the slot member 6 in the horizontal direction (direction perpendicular to the plane of FIG. 1) with respect to the bracket body 2. To do. [Effect] When the angle is changed according to the treatment stage of the orthodontic treatment, it is not necessary to replace the bracket body 2 adhered to the tooth or give the arch wire 12 an angle, and the slot member 6 is appropriately replaced. Just do it. As a result, it is easy to change the angle during orthodontic treatment. Further, since the bracket main body 2 can be shared, the manufacturing unit price of the orthodontic bracket 1 is reduced. Further, since the bracket body 2 is made of plastic or ceramic, it is inconspicuous.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an orthodontic bracket suitable for application when performing orthodontic treatment.

[0002]

[Prior art]

 FIG. 6 is a perspective view showing an example of a conventional orthodontic bracket.

As a conventional orthodontic bracket 1, for example, as shown in FIG. 6, a rectangular parallelepiped main body 8 has a rectangular cross section (for example, .018 × .025 or .022 × .028) on the upper surface thereof. Metallic ones in which the slots 8a are formed are widely used. The orthodontic bracket 1 in which the slot 8a is provided with the inclination angle θ is mainly used so that the anatomical tooth axis can be improved for one tooth.

[0004]

[Problems to be solved by the device]

 However, in this case, since the tilt angle θ is provided to the slot 8a itself, it is not necessary to give an angle or twist to the arch wire (not shown) having a rectangular cross section, but the tilt angle θ is set for each tooth. Since it is necessary to prepare many kinds of orthodontic brackets 1, the manufacturing unit price of the orthodontic bracket 1 is inevitably high.

Further, when the angle is changed according to the treatment stage of the orthodontic treatment, it is necessary to replace the orthodontic bracket 1 or give an angle to the arch wire, which is complicated in any case. There was an inconvenience that it took time and effort.

Further, when the orthodontic bracket 1 is adhered to the surface of the tooth, the material of the orthodontic bracket is metal, so that it is unavoidable to give an impression of being an inorganic substance, and it may be used during conversation or during meals. There was a risk that the surrounding people would feel uncomfortable.

In view of the above circumstances, the present invention can keep the manufacturing unit price low, can change the angle easily during orthodontic treatment, and is not conspicuous even if it is adhered to a tooth. An object is to provide a bracket for orthodontics.

[0008]

[Means for Solving the Problems]

 That is, an orthodontic bracket (1) according to the present invention has a bracket body (2), a slot member engaging groove (3) having a rectangular cross section is formed in the bracket body, and a slot (6c) having a rectangular cross section. The slot member (6) is formed so as to be inclined by a predetermined inclination angle (θ), and is detachably fitted in the slot member engaging groove to restrain the horizontal movement of the slot member with respect to the bracket body. The restraint mechanism (4 and 6b, 9 and 6e) is provided.

The bracket body (2) is made of plastic or ceramic, and the slot member (6) is made of metal.

The numbers in parentheses are for convenience of representing corresponding elements in the drawings, and the present invention is not limited to the description in the drawings. The same applies to the "Claims for utility model registration" and "Action" columns.

[0011]

[Action]

 With the above structure, the present invention changes the angle of the bracket body (2) adhered to the tooth (10) or changes the angle of the arch wire (12) when changing the angle according to the treatment stage of the orthodontic treatment. The slot member (6) does not have to be provided, and the slot member (6) can be replaced appropriately.

[0012]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing an embodiment of an orthodontic bracket according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a bracket main body of the orthodontic bracket shown in FIG. FIG. 4 is a side view showing a state where the bracket is attached to a surface, FIG. 4 is a front view showing another embodiment of the orthodontic bracket according to the present invention, and FIG. 5 is still another embodiment of the orthodontic bracket according to the present invention. It is a front view shown.

As shown in FIG. 1, an orthodontic bracket 1 according to the present invention has a bracket body 2 made of a transparent or milk brown plastic or ceramic and formed into a substantially rectangular parallelepiped shape. A slot member engaging groove 3 having a rectangular cross section is formed on the upper surface of 2. As shown in FIGS. 1 and 2, four tie wings 5 are formed on the upper end of the side of the bracket body 2, and the bottom of the bracket body 2 has four round holes on its upper surface. 4 is recessed, and the tooth bonding surface 2a is formed on the lower surface thereof.

A slot member 6 made of metal such as stainless steel is detachably fitted in the slot member engaging groove 3, and the slot member 6 has a slot body 6a having a substantially rectangular parallelepiped shape. There is. A slot 6c having a rectangular cross section is formed on the upper surface of the slot body 6a in a shape inclined by a predetermined inclination angle θ (for example, 3 °, 12 °, 15 °, 20 °, etc.). Further, four protrusions 6b are formed on the lower surface of the slot body 6a, and each protrusion 6b can be fitted into and engaged with each round hole 4 of the bracket body 2 respectively.

Since the orthodontic bracket 1 according to the present invention has the above-mentioned configuration, when performing orthodontic treatment using the orthodontic bracket 1, as shown in FIG. The bracket body 2 is bonded to the surface of the tooth 10 to be bonded via the tooth bonding surface 2a, and the slot member 6 is inserted into the slot member engaging groove 3 of the bracket body 2 as shown in FIG. It is fitted so that it faces upward in FIG. Then, the protrusions 6b of the slot member 6 are fitted into and engaged with the round holes 4 of the bracket body 2, respectively. In this state, the arch wire 12 having a rectangular cross section is inserted into the slot 6c of the slot member 6, and a ligature wire (not shown) is hooked on the tie wing 5 to perform orthodontic treatment.

At this time, since the slot member 6 is sandwiched between the bracket body 2 and the arch wire 12, the slot member 6 is inserted into the slot member engaging groove 3 of the bracket body 2 during orthodontic treatment. It doesn't get out of the way. Further, since the projection 6b of the slot member 6 is fitted and engaged with the round hole 4 of the bracket body 2, the slot member 6 moves horizontally with respect to the bracket body 2 (direction perpendicular to the plane of FIG. 1). There is nothing to do. Further, since the bracket main body 2 that occupies most of the orthodontic bracket 1 is made of plastic or ceramic rather than metal, even if the orthodontic bracket 1 is adhered to the teeth, it is inconspicuous and aesthetic. Excellent in performance. Needless to say, the bracket body 2 may be made of metal if the aesthetics of the orthodontic bracket 1 is not a concern.

By the way, there are cases where the angle must be changed according to the treatment stage of the orthodontic treatment. In that case, it is only necessary to appropriately replace the slot member 6, and the bracket bonded to the tooth 10 is required. Since it is not necessary to replace the main body 2 or give an angle to the archwire 12, it is possible to easily change the angle according to the treatment stage.

In the above-described embodiment, four round holes 4 are provided on the top surface of the bottom of the bracket body 2 so that the slot body 6a does not move in the horizontal direction with respect to the bracket body 2, and Although the orthodontic bracket 1 having the four protrusions 6b on the lower surface of the main body 6a has been described, the numbers of the round holes 4 and the protrusions 6b are not limited to four, and it is understood that any number may be used. Nor. Further, various restraint mechanisms for restraining the horizontal movement of the slot main body 6a with respect to the bracket main body 2 may be considered. For example, the bracket body 2 may be provided with a projection and the slot body 6a may be provided with a round hole, or, as shown in FIG. 4, a vertical groove 9 may be formed on the inner peripheral surface of the side portion of the bracket body 2. It is also possible to form the protrusion 6e on the outer peripheral surface of the slot body 6a while forming the protrusion.

Further, in the above-described embodiment, the orthodontic bracket 1 in which the slot member 6 is detachably fitted in the slot member engaging groove 3 of the bracket main body 2 with the slot 6c thereof facing upward in FIG. However, in the present invention, as shown in FIG. 5, the slot member 6 may be removably fitted in the slot member engaging groove 3 with the slot 6c facing downward. In this case, as shown in FIG. 5, in order to prevent the slot member 6 from being disengaged from the slot member engaging groove 3 of the bracket main body 2 upward in FIG. 5 during the orthodontic treatment, as shown in FIG. It is necessary to provide the slot member 6 so as to extend horizontally.

Further, in the above-described embodiment, the orthodontic bracket 1 having the tie wings 5 formed on the upper ends of the side portions of the bracket body 2 has been described. However, when it is not necessary to hook a ligature wire, However, the tie wing 5 is unnecessary. As shown in FIG. 5, when the tie wings 5 are not provided, the wall thickness of the side portion of the bracket body 2 can be increased to improve the durability.

[0022]

[Effect of device]

 As described above, according to the present invention, the bracket body 2 is provided, the slot member engaging groove 3 having a rectangular cross section is formed in the bracket body 2, and the slot 6c having the rectangular cross section has a predetermined inclination angle. A slot member 6 formed in a shape inclined by θ is detachably fitted in the slot member engaging groove 3 to restrain a horizontal movement of the slot member 6 with respect to the bracket body 2 in a horizontal direction. Since the protrusion 6b, the vertical groove 9 and the protrusion 6e are provided with a restraint mechanism, the bracket body 2 adhered to the tooth 10 when the angle is changed according to the treatment stage of the orthodontic treatment. Since it is not necessary to replace the slot wire 6 and to give an angle to the arch wire 12 and to simply replace the slot member 6 as appropriate, the angle can be easily changed during the orthodontic treatment. Further, since the bracket body 2 can be shared, the manufacturing unit price of the orthodontic bracket 1 can be kept low.

If the bracket body 2 is made of plastic or ceramic and the slot member 6 is made of metal, the bracket body 2 occupying most of the orthodontic bracket 1 is made of plastic or ceramic. Therefore, even if the orthodontic bracket 1 is adhered to the teeth, it is not conspicuous and has excellent aesthetics, and it is possible to prevent discomfort from the surroundings during conversation or eating. Becomes

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of an orthodontic bracket according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view showing a state in which the bracket body of the orthodontic bracket shown in FIG. 1 is bonded to the surface of a tooth.

FIG. 4 is a front view showing another embodiment of the orthodontic bracket according to the present invention.

FIG. 5 is a front view showing another embodiment of the orthodontic bracket according to the present invention.

FIG. 6 is a perspective view showing an example of a conventional orthodontic bracket.

[Explanation of symbols]

 1 ... Orthodontic bracket 2 ... Bracket body 3 ... Slot member engaging groove 4 ... Restraint mechanism (round hole) 6 ... Slot member 6b ... Restraint mechanism (protrusion) 6c ... Slot 6e ... … Restraint mechanism (projection) 9 …… Restraint mechanism (vertical groove) θ …… Inclination angle

Claims (2)

[Scope of utility model registration request] 1. A bracket body (2), wherein a slot member engagement groove (3) having a rectangular cross section is formed in the bracket body, and the rectangular cross section slot (6c) has a predetermined inclination angle (θ).
A restraint mechanism (4 and 6b, which slidably fits a slot member (6) formed in a slanted shape into the slot member engaging groove to restrain the horizontal movement of the slot member with respect to the bracket body. 9 and 6
An orthodontic bracket configured by providing e). 2. The orthodontic bracket according to claim 1, wherein the bracket body (2) is made of plastic or ceramic, and the slot member (6) is made of metal.