CN213588545U

CN213588545U - Friction force controllable self-ligating bracket

Info

Publication number: CN213588545U
Application number: CN202022309196.6U
Authority: CN
Inventors: 王胜国
Original assignee: Second Affiliated Hospital of Chongqing Medical University
Current assignee: Second Affiliated Hospital of Chongqing Medical University
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-07-02
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses a friction force controllable self-ligating bracket, which comprises a bracket base body, a sliding cover and two opposite bracket bodies arranged on the bracket base body, wherein an arch wire groove is formed between the two bracket bodies, the two bracket bodies respectively extend towards the direction far away from the arch wire groove, the top of one bracket body is provided with a sliding groove, the sliding cover is arranged in the sliding groove and is in sliding fit with the sliding groove, and the sliding direction of the sliding cover is vertical to the direction of the arch wire groove; the bracket base body is provided with a through hole which penetrates through the bracket base body, and the through hole is vertical to the arch wire groove. The self-ligating bracket can ensure that the positive pressure of the main arch wire is zero through the sliding cover, reduce the friction force of the system and play a role of the self-ligating bracket; the positive pressure of the ligature wire or the ligature ring on the arch wire can be changed by ligating the bottom of the two bracket bodies, so that the function of adjusting friction force is achieved; the ligature wire can pass through the through hole and ligate the arch wire on the bracket base body, and the twisted teeth can be aligned by utilizing the pressure or the pulling force of the arch wire on the twisted teeth.

Description

Friction force controllable self-ligating bracket

Technical Field

The utility model relates to a medical instrument that the oral cavity used especially relates to a controllable formula self-ligating bracket of frictional force.

Background

The self-ligating bracket is a device made of metal or ceramic and the like and fixed on the surface of a tooth by using a special adhesive in orthodontic treatment, and is used for accommodating and fixing an orthodontic arch wire and transmitting orthodontic force to the tooth so as to achieve the aim of orthodontics.

The birth of the self-ligating bracket correction technology brings revolutionary change to the fixed orthodontic technology. The orthodontic treatment is more convenient, and a high-efficiency and fashionable choice is provided for patients; the main advantage of the method is that the frictional resistance between the arch wire and the bracket can be greatly reduced; because the door is added on the bracket, the orthodontic arch wire can be directly locked in the groove of the bracket, and the binding of the orthodontic arch wire by a binding arch wire or an elastic ring is avoided.

The existing self-ligating bracket straightening technology is quick in alignment, but has certain difficulty in accurately controlling tooth torsion.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough that exists among the prior art, the utility model provides a controllable formula self-ligating bracket of frictional force that both can low frictional force quick travel tooth, can twist reverse accurate control to the tooth again.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a friction force controllable self-ligating bracket comprises a bracket base body, a sliding cover and two bracket bodies which are fixedly arranged on the bracket base body and opposite to each other, wherein an arch wire groove is formed between the two bracket bodies; and a through hole penetrating through the bracket base body is arranged on the bracket base body and close to the bottom, and the through hole is vertical to the arch wire groove.

As an optimal proposal of the utility model, the distance between the bottom of the arch wire groove and the bottom of the bracket body is 0.01-0.014 inch.

As another preferred scheme of the utility model, the edge and the edges and corners of the bracket body are circular arc transition.

The technical effects of the utility model are that: the friction force controllable self-ligating bracket is convenient to operate and flexible to control, the sliding cover is slid and covered on the arch wire groove, the sliding cover is separated from or slightly contacts with the arch wire, no positive pressure or small positive pressure exists, and at the moment, the friction force between the sliding cover and the arch wire is reduced, so that tooth movement is facilitated, and tissue damage is reduced; when the ligature is carried out at the bottoms of the two bracket bodies, because the distance between the bottom of the bracket body and the bottom of the arch wire groove is small, positive pressure exists between the ligature wire and the arch wire, and the friction force between the ligature wire and the arch wire is increased through tight ligature, so that the tooth can be stabilized, the movement of the tooth is reduced, and the anchorage is enhanced; and (3) penetrating the ligature wire through the through hole, ligating the arch wire on the bracket base body, and aligning the twisted teeth by utilizing the pressure or the tension of the arch wire on the twisted teeth. The friction force controllable self-ligating bracket can ensure that the positive pressure is zero through the sliding cover, reduce the friction force of the system, accelerate the movement of teeth and play a role of the self-ligating bracket; the positive pressure of the ligature wire or the ligature ring on the arch wire can be changed by ligating the bottom of the two bracket bodies, so that the function of adjusting friction force is achieved; the ligature wire can also pass through the through hole and ligature the arch wire on the bracket body to correct tooth torsion.

Drawings

FIG. 1 is a schematic structural view of a friction force controllable self-ligating bracket;

FIG. 2 is a schematic structural view of a friction force controllable self-ligating bracket with a sliding cover covering an archwire slot;

FIG. 3 is a schematic structural view of a friction force controllable self-ligating bracket ligated with a ligature wire at the bottom of two bracket bodies;

FIG. 4 is a schematic view of a friction force controllable self-ligating bracket with a ligature wire passing through a through-hole.

In the figure: 1-bracket base body; 2, a sliding cover; 3, supporting the trough body; 4-arch wire groove; 5-a through hole; 6, an arch wire; and 7, binding wires.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a friction force controllable self-ligating bracket comprises a bracket base body 1, a sliding cover 2 and two bracket bodies 3 which are fixedly arranged on the bracket base body 1 and are opposite to each other, an arch wire groove 4 is formed between the two bracket bodies 3, the two bracket bodies 3 respectively extend towards the direction far away from the arch wire groove 4, a sliding groove is arranged at the top of one bracket body 3, the sliding cover 2 is arranged in the sliding groove and is in sliding fit with the sliding groove, and the sliding direction of the sliding cover 2 is vertical to the direction of the arch wire groove 4; a through hole 5 penetrating through the bracket base body 1 is arranged on the bracket base body 1 and close to the bottom, and the through hole 5 is vertical to the arch wire groove 4.

The distance between the bottom of the arch wire groove 4 and the bottom of the bracket bodies 3 is 0.01-0.014 inches, and the distance can ensure that when the ligature wire is ligated at the bottoms of the two bracket bodies 1, enough friction force exists between the ligature wire and the arch wire. The edges and edges of the bracket body 3 are in arc transition, so that the lips of a patient can be prevented from being scratched in the treatment and use processes, and the comfort level of the patient is improved.

When the friction force controllable self-ligating bracket is used, the sliding cover 2 is slid and the sliding cover 2 is covered on the arch wire groove 4, as shown in figure 2, the sliding cover 2 is separated from or lightly contacted with the arch wire 6, no positive pressure or small positive pressure exists, and at the moment, the friction force between the sliding cover 2 and the arch wire 6 is reduced, so that the tooth movement is facilitated, and the tissue damage is reduced. When the ligature wire 7 is ligated at the bottom of the two bracket bodies 3, as shown in fig. 3, positive pressure exists between the ligature wire 7 and the arch wire 6, and through tight ligation, the friction force between the ligature wire 7 and the arch wire 6 is increased, so that the tooth can be stabilized, the movement of the tooth is reduced, and the anchorage is enhanced. The ligature wire 7 is penetrated through the through hole 5, and the arch wire 6 is ligatured on the bracket base body 1, as shown in figure 4, the twisted teeth are corrected by utilizing the extrusion force or the pulling force of the arch wire to the twisted teeth. Therefore, the friction force controllable self-ligating bracket can ensure that the positive pressure is zero through the slip cover 2, reduce the friction force of the system, accelerate the movement of teeth and play a role of the self-ligating bracket; the positive pressure of the ligature wire or the ligature ring on the arch wire can be changed by ligating the bottom of the two bracket bodies 3, so that the function of adjusting the friction force is achieved; the twisted teeth can also be corrected by the ligature wire passing through the through hole 5 and ligaturing the arch wire on the bracket body 3.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A friction force controllable self-ligating bracket comprises a bracket base body (1), a sliding cover (2) and two opposite bracket bodies (3) fixedly arranged on the bracket base body (1), wherein an arch wire groove (4) is formed between the two bracket bodies (3), the two bracket bodies (3) respectively extend in a direction away from the arch wire groove (4), the top of one bracket body (3) is provided with a sliding groove, the sliding cover (2) is arranged in the sliding groove and is in sliding fit with the sliding groove, and the sliding direction of the sliding cover (2) is vertical to the direction of the arch wire groove (4); the method is characterized in that: the bracket is characterized in that a through hole (5) penetrating through the bracket base body (1) is formed in the bracket base body (1) and close to the bottom, and the through hole (5) is vertical to the arch wire groove (4).

2. The friction force controllable self-ligating bracket of claim 1, wherein: the distance between the bottom of the arch wire groove (4) and the bottom of the bracket body (3) is 0.01-0.014 inches.

3. The friction force controllable self-ligating bracket of claim 1, wherein: the edges and edges of the bracket body (3) are in arc transition.