WO2010105430A1

WO2010105430A1 - Orthodontic self-ligating bracket

Info

Publication number: WO2010105430A1
Application number: PCT/CN2009/070900
Authority: WO
Inventors: 陈勇
Original assignee: Chen Yong
Priority date: 2009-03-20
Filing date: 2009-03-20
Publication date: 2010-09-23

Abstract

An orthodontic self-ligating bracket includes a bracket main body on a base plate (1) which engages the surface of a tooth. The bracket main body is composed of a seat (2) with a slot and a movable part (3) with a slot. The seat is fixedly attached to the surface of the base plate and elastically connected with the movable part. The mesiodistal slot (13) is used to secure an orthodontic archwire. The bracket provides three-dimensional precision control of a tooth.

Description

Orthodontic self-locking bracket Technical field:

The invention relates to an orthodontic self-locking bracket. Background technique:

Straight Wire Bracket is the current mainstream orthodontic appliance. In the past ten years, the self-locking straight wire bracket system has been developed from the traditional straight wire bracket system (Self). Ligating Bracket has been widely used in clinical applications. Compared with traditional straight wire brackets, self-locking brackets have the advantages of low friction and self-locking archwires, which can shorten the clinical treatment of patients and save doctors. The clinical operation time and the more comfortable treatment process for patients are the most advanced fixed correction systems. The existing self-locking brackets include a Speed aligner, a Smartcl ip aligner, a Damon appliance, etc. However, due to the design deficiencies of the existing self-locking aligners, a series of problems arise in clinical use. Therefore, it is particularly necessary to develop a new self-locking bracket aligner based on the study of existing aligners. Summary of the invention:

SUMMARY OF THE INVENTION It is an object of the present invention to provide an orthodontic self-locking bracket which not only has all the advantages of the existing self-locking aligner, but also enables precise control of the teeth in three dimensions.

The orthodontic self-ligating bracket of the present invention is characterized in that: the bracket comprises a bottom plate connected to the tooth surface and a bracket body coupled to the bottom plate, wherein the bracket main body is fixedly coupled to the surface of the bottom plate The seat body of the groove and the movable body with the groove are elastic The butt joint composition, wherein the proximal and distal median grooves are used to lock the orthodontic archwire. Through the opening and closing of the movable body, the archwire can enter and exit the groove.

Compared with the existing self-locking aligner self-locking bracket, the invention has:

1, no traditional bracket wing shape, easy to clean, good oral comfort, strong bite resistance, not easy to damage.

2. The seat and the movable body are connected by elastic means, and the elastic force can be slowly applied to the orthodontic arch wire through the groove wall, thereby achieving precise control of the teeth.

3, the combination of spring and sliding bolt design, can make the opening and closing operation of the bracket in the clinic simple and simple, reducing the patient's discomfort.

4. The circular arc design of the archwire entrance of the bracket allows the most orthodontic archwire to be directly pressed into the groove without fully opening the movable body.

5. The traction hook above the movable body and the groove on the lower side of the rear of the bracket body enable the bracket to have an auxiliary ligation function, and can be used as a traditional bracket in some specific cases. BRIEF DESCRIPTION OF THE DRAWINGS:

1 is a schematic perspective view of a bracket of the present invention;

2 is a schematic perspective view showing the movable structure of the bracket movable body of the present invention;

3 is a schematic perspective view of a bracket body of the present invention;

Figure 4 is an internal cross-sectional view of the bracket body of the present invention;

Figure 5 is a left side view of the movable body of the bracket of the present invention;

Fig. 6 is a left side view showing the state in which the bracket is bundled by the elastic ring. detailed description:

The orthodontic self-ligating bracket of the present invention comprises a bottom plate 1 and a joint connected to the surface of the tooth a bracket main body connected to the bottom plate 1. The bracket main body is composed of a seat body 2 having a groove fixedly coupled to the surface of the bottom plate 1 and a movable body 3 having a groove. The groove of the seat body 2 is The proximal and distal groove 13 formed by the groove of the movable body 3 is used for locking the orthodontic arch wire, and the self-locking bracket is made of a solid material such as metal, ceramic or plastic.

The movable body 3 and the seat body 2 are provided with a mating component for maintaining the movable body opening position between the inner side of the tooth surface to prevent the movable body from being reset.

The specific structure of the above-mentioned mating component may be a return spring 6 connected between the inner side abutting surface of the movable body and the inner side abutting surface of the movable body to close the movable body to the seat body (the return spring 6 is a tensioned spring, has a contraction Trends, and the studs 7 respectively connected to the opposite ends of the inner side of the movable body, the corresponding positions of the seat body are correspondingly provided with the peg holes 8 and the stud chutes 9 which cooperate with the pegs 7 when orthodontic When the arch wire is adjusted, the movable body can be pulled apart and offset to one end, and then the peg 7 is disengaged from the peg hole 8, slides into the peg chute 9, and is abutted, limiting The movable body and the seat body are closed, and the movable body and the seat body have a certain distance, so that the operation is more convenient, but the above-mentioned mating components are not limited to the above structure, and the above structure is only required to prevent the movable body from being reset and closed. A preferred embodiment.

The movable body comprises a tooth wall, a lateral wall and a partial lip wall, and the seat body comprises a tooth wall, a jaw wall and a partial lip wall, which is beneficial to the three-dimensional control of the tooth.

In order to facilitate the insertion of the archwire into the proximal and distal groove 13, the arc-shaped chamfer 21 is provided at the anastomosis of the lip leading edge of the movable body and the leading edge of the lip of the fixed body, so that most archwires are not opened. In the case of the body, it can be directly pressed into the groove for easy operation.

In order to meet the needs of different tooth positions, the proximal and distal mesial grooves 13 of the above self-locking bracket can form different widths and angles with the tooth surface at different tooth positions, that is, the near-distal middle direction groove 13 is not necessarily all Horizontal, can be at a certain angle to the horizontal plane; The cross-sectional shape and size of 13 are also determined and selected based on the actual tooth position.

The movable body has a traction hook 18 on the outer side thereof, and the outer surface of the bracket main body near the tooth surface has a shallow groove 19 which is bundled by the elastic ring 20. It is advantageous to fix the archwire by bundling of the elastic ring in the case of failure of the self-locking device.

Further, in order to prevent the movable body from being completely disengaged from the bottom plate, the bottom plate 1 is provided with a stopper 4.

Significant advantages of the invention:

5. The traction hook above the movable body and the groove on the lower side of the rear of the bracket body enable the bracket to have an auxiliary ligation function, and can be used as a traditional bracket in some specific cases.

Claims

Claim

1 . An orthodontic self-locking bracket, characterized in that: the bracket comprises a bottom plate connected to a tooth surface and a bracket body coupled to the bottom plate, wherein the bracket body is fixedly coupled to the surface of the bottom plate The seat body having the groove and the movable body having the groove are elastically butted together, wherein the near-distal and medium-direction groove is used for locking the orthodontic arch wire.

2. The orthodontic self-ligating bracket according to claim 1, wherein: a connection between the inner side abutting surface of the movable body and the inner side abutting surface of the bracket is connected to close the movable body to the seat body. The spring and the bracket are arranged on the side of the tooth surface to maintain the movable body open positioning to prevent the movable body from being reset.

The orthodontic self-ligating bracket according to claim 2, wherein: the bracket has a stud on the inner abutting surface, and the corresponding position of the seat body is correspondingly provided with the stud. The stud hole and the stud chute, so that the movable body is pulled apart and offset toward one end, the stud can be caught in the stud chute, thereby preventing the movable body from being reset.

4. The orthodontic self-ligating bracket according to claim 1, 2 or 3, wherein: the movable body comprises a tooth surface wall, a lateral wall and a partial lip wall, the seat body comprising a tooth surface wall, a jaw To the wall, and to the part of the lip wall.

The orthodontic self-ligating bracket according to claim 1, 2 or 3, characterized in that: the arc-shaped chamfer is provided at the anastomosis of the lip leading edge of the movable body and the lip leading edge of the fixed body In order to facilitate the insertion of the arch wire into the groove.

The orthodontic self-ligating bracket according to claim 1, 2 or 3, wherein: the proximal and distal median grooves of the self-locking bracket are different from the tooth surface at different tooth positions. Width and angle.

The orthodontic self-ligating bracket according to claim 1, 2 or 3, wherein: the movable body has a traction hook on the outer side thereof, and the outer surface of the bracket main body is close to the tooth surface and has a shallow elastic band groove.

The orthodontic self-ligating bracket according to claim 1, 2 or 3, wherein: the bottom plate is provided with a limiting member for defining the movable body to be completely disengaged.

The orthodontic self-locking bracket according to claim 1, 2 or 3, wherein the self-locking bracket is made of a metal, ceramic or plastic material.