An orthodontic self-ligating bracket that can effectively express torque

Abstract

The invention relates to an orthodontic self-locking bracket capable of effectively expressing a torque. The orthodontic self-locking bracket comprises a bracket matrix; a metal mesh bottom is arranged at the bottom of the bracket matrix; a ligation wing and an arch wire groove are formed on the bracket matrix; the top of the arch wire groove is provided with a cover plate arranged in the length direction of the arch wire groove; a spring plate is slantingly arranged in the arch wire groove in the length direction of the arch wire groove; one end of the spring plate is elastically connected with the arch wire groove. An arch wire can conveniently enter and exit the arch wire groove, so that movement of a tooth can be accelerated and damage to tissues can be reduced; when the position of the arch wire needs to be effectively limited, the arch wire can be placed after the spring plate is pressed down, the arch wire is placed into the arch wire groove of the bracket, the arch wire is squeezed by resetting and rebounding of the spring plate and is matched with a ligation wire to carry out tight ligation to implement effective locking control on the arch wire and increase a friction force of a system, so that accurate control on the torque of the tooth is implemented, the clinical operation time of an orthodontic doctor is greatly shortened, the treatment period of a patient is shortened and the orthodontics is promoted.

Description

[0001] Technical field: [0002] The invention relates to an orthodontic self-locking bracket capable of effectively expressing torque. [0003] Background technique: [0004] Correct tooth torque is conducive to the establishment of good occlusion, force transmission, periodontal health and tooth surface aesthetics. The ideal situation at the end of straight wire appliance correction should be that the built-in torque angle is fully expressed, but the torque is still the weak point of the straight wire appliance, because the torque only depends on the contact surface between the square wire and the bracket to generate torsional force, The size of the active surface is too small relative to the tooth, so it is difficult to fully function; at the same time, the size of the archwire generally used in orthodontic treatment is always smaller than the width of the groove, so as to facilitate the insertion of the archwire into the groove and the comfort of the patient. There will in...

AI Technical Summary

Problems solved by technology

However, the self-locking brackets on the market are expensive, and there will be problems that the closure cover cannot be opened or closed during clinical use.

Although the teeth can be moved quickly at the stage of using thin arch wires to correct the teeth, there are the following disadvantages: 1. It is difficult to position the self-ligating brackets accurately when bonding, which is due to the complex structure of most types of self-ligating brackets and no The obvious two wings make it difficult for doctors to hold and position the self-ligating bracket when bonding the self-ligating bracket, and it is difficult to accurately position the self-ligating bracket

2. Although the friction force is reduced, it is difficult to control the position of the teeth. In clinical practice, the inclination and rotation of the moving teeth sometimes occur. For this reason, sometimes it is still necessary to use ligature wire to ligate the arch wire to correct and prevent the inclination and rotation of the teeth; 3. Especially The prefabricated axial inclination and torque angle of the anterior bracket will be lost, and sometimes necessary compensation must be done on the arch wire, but the processed arch wire is difficult to position and cannot close the sliding cover or locking device, or The tooth root is resorbed due to excessive instantaneous force; 4. The self-locking device of the self-ligating bracket usually occupies a large space, which makes the thickness of the self-ligating bracket larger and may fall off during chewing. The wings are short and blunt, and it is inconvenient to fix when adding ligation accessories, and it is easy to slip off

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