Separable orthodontic bracket

Abstract

The invention discloses a separable orthodontic bracket and belongs to the technical field of orthodontics. The separable orthodontic bracket disclosed by the invention comprises a bracket bottom plate and a bracket body, wherein the bracket body comprises a bracket retainer, a bracket movable body and a connecting component; the bracket retainer is connected with the bracket bottom plate; the bracket movable body is connected with an arch wire; the bracket retainer and the bracket movable body can realize separable connection through the connecting component. The orthodontic bracket disclosed by the invention can be used for accurately transmitting the deformation amount of a prefabricated arch wire to teeth so that a tooth movement manner and movement amount can be accurately controlled.

Description

technical field [0001] The invention relates to the technical field of orthodontics, in particular to an orthodontic bracket. Background technique [0002] Orthodontics is a discipline that treats misaligned teeth and tooth surface deformities through the application of orthodontic devices. At present, the most widely used bracket correction mainly includes fixed labial correction and customized lingual correction. [0003] Fixed labial correction is realized based on the interaction between the brackets bonded to the labial side and the sequence of arch wires, mainly including winged brackets (such as patent documents CN204446157U, CN2614644Y, CN202020559U), self-locking brackets (such as Patent documents CN104434324A, CN204636588U, CN201578387U), etc., in the early stage, the elasticity of the circular arch wire and the restriction of the orthodontic bracket to the arch wire were used to realize the teeth to slide freely according to the shape of the arch wire to achieve ...

AI Technical Summary

Problems solved by technology

This orthodontic system has the following problems: 1. The controllability of tooth movement in the early alignment process is poor, mainly because in the orthodontic process at this stage, the movement of the teeth mainly depends on the free sliding of the archwire within the range of the bracket. It is impossible to precisely control the movement direction and amount of the teeth, which easily leads to unpredictable tooth movements; 2. In the later fine adjustment process, the square archwire and the square groove cannot achieve close contact, and there is a certain gap between the archwire and the groove. If there is a gap, the bracket needs to be pre-set with an additional angle or an additional torque is added to the arch wire to make some compensation.

However, the orthodontic system still has the following problems: 1. The lingual fixed appliance still uses the sliding principle of the labial fixed orthodontic and the interaction between the square arch wire and the bracket to realize the three-dimensional direction control of the teeth, so there is also the above-mentioned labial The problem of fixed orthodontic treatment, and the lingual bracket is smaller than the labial bracket, the groove is narrower, and the movement in the three-dimensional direction is worse; 2. At the same time, the lingual space is small, and the patient's mouth opening is limited. Interfilament ligation is more complex than labial and thus requires more specialized training and chair time for the clinician

The orthodontic system based on the sliding mechanism of the arch wire is difficult to achieve precise control of the amount and mode of tooth movement

Images