Orthodontic self-ligating bracket

Abstract

The invention discloses an orthodontic self-ligating bracket which comprises a bracket body and a bracket cover, wherein a bracket hole is formed in the bracket body in a manner of being crossed with an arch wire colpus; the bracket cover is T-shaped on the whole and comprises a wide part and a narrow part; a shaft hole is formed in the bracket cover; the narrow part of the bracket cover is arranged in the bracket hole; a pin shaft is arranged in the shaft hole of the narrow part of the bracket cover in a penetration manner; a kidney-shaped hole which is formed by wire cutting and used for clamping and positioning the pin shaft is formed in a working wing on the right side of the arch wire colpus; the pin shaft is arranged in the kidney-shaped hole in a penetration manner; a boss horizontally extends on the bracket body on the left side of the arch wire colpus in a direction deviating from the arch wire colpus; a bent hook is arranged at the wide part of the bracket cover; the wide part of the bracket cover is used for covering the boss on the left side of the arch wire colpus; the bent hook is matched with the boss; the pin shaft can be in different positions of the kidney-shaped hole along with the front-rear motion of the bracket cover, and the boss can be clamped in or separated from the bent hook along with the motion of the bracket cover, so that the bracket cover can be in a closed or opened state.

Description

technical field [0001] The invention relates to the technical field of orthodontics, in particular to a self-locking bracket for orthodontics. Background technique [0002] At present, in the process of orthodontic treatment of oral teeth, the orthodontic bracket is fixed on the tooth surface, and the arch wire passes through the arch wire slot (also known as the square wire slot) on the bracket, and is bound by a rubber ring or a steel wire. The arch wire is directly ligated in the arch wire groove of the bracket, and the correction force of the arch wire is transmitted to the teeth through the bracket, so that the teeth will move as expected, so as to achieve the purpose of correcting the teeth. [0003] Since the currently used ligation rubber ring or ligation steel wire is ligated on the ligation wing of the bracket, it directly exerts force on the arch wire, which produces a large pressure on the arch wire, hinders the normal movement of the arch wire, and thus affects ...

AI Technical Summary

Problems solved by technology

At present, there are many kinds of self-locking brackets on the market, including two series of active type and passive type, but the structure is relatively complicated, the manufacture is difficult, the cost is high, the price is expensive, and the operation is difficult.

Images