Depressing upper anterior teeth brace

Abstract

A depressing upper anterior teeth brace is characterized by comprising micro-implant anchorage nails and a brace. The micro-implant anchorage nails are divided into two groups; a first group is arranged on the cheek side and muco-gingival junction between a second premolar tooth and a first grinding tooth of the upper jaw, the angle between the first group and the teeth axis is 45 degrees; the second group is arranged on muco-gingival junction between the lateral incisor and the canine teeth of the upper jaw, the angle between the second group and the teeth axis is 45 degrees; multiple gaps are formed in bone cortex between the left second premolar teeth and the right second premolar teeth of the upper jaw in advance; the size of the first group of micro-implant anchorage nails is larger than that of the second group; the brace comprises a draw hook and a gap closing arch wire; one end of the draw hook is arranged on the gap closing arch wire, and the other end is connected to the micro-implant anchorage nails through a rubber band or an extension spring. During the upper anterior teeth rectification process, the brace can accelerate the tooth moving speed, at the same time, the distance for adduction-depressing upper anterior teeth is largely increased, the large irreversible damage to tooth roots is avoided, and the curative effect is largely improved.

Description

technical field [0001] The invention relates to a tooth straightening device, in particular to a depressed upper anterior tooth straightening device including micro-implantation anchorage nails and strong anchorage. technical background [0002] In the process of orthodontics, any force applied to the orthodontic teeth to move them will inevitably produce a force in the opposite direction and the same magnitude at the same time, and the smaller implants that are implanted in the mouth to support the reaction force caused by the movement of the orthodontic teeth are called " Micro-plant anchorage nails". In order to achieve ideal tooth movement during treatment, especially in tooth extraction orthodontic cases, in order to retract the anterior teeth, the anchorage provided by the micro-implant anchorage screw is different from the traditional anchorage, and the size, size, and The shape, implant position, and the traction angle of the arch wire for gap closure have high requ...

AI Technical Summary

Problems solved by technology

[0003] For a long time, many scholars have used micro-implant anchorage, J-hook, etc. to depress the anterior teeth. Due to the anatomical limitations of adult tooth movement, larger micro-implant anchorage screws are needed to provide strong anchorage. Slow movement, long treatment time, etc., the distance of adduction depression is also limited, and it also causes large irreversible damage to the root, and the curative effect is not good

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