Cantilever spring, traction device and method for traction of impacted molars

Abstract

The present invention is applicable to the technical field of orthodontics, and provides a cantilever spring, a traction device and a method for traction of impacted teeth, wherein the cantilever spring includes a first fixing part and a second fixing part at both ends, through the The first fixing part and the second fixing part realize the fixing of the cantilever spring; the first coil and the second coil form at least one coil; the first moment arm forms between the first fixing part and the first coil; the second arm is formed between the first coil and the second coil; the third arm is formed between the first coil Between the two coils and the second fixing part. In the present invention, relying on the temporary anchorage device to provide strong anchorage, it has no effect on the adjacent teeth; the indications are wide, and the upper or lower impacted maxillary and mandibular third molars can be applied; and it is efficient enough to treat the impacted third molars at the same time Distal vertical, joint traction and mesial movement greatly shorten the course of treatment.

Description

technical field [0001] The invention belongs to the technical field of orthodontics, and in particular relates to a cantilever spring, a traction device and a method for traction of impacted teeth. Background technique [0002] The impacted third molars often lead to serious endodontic diseases of the second molars, so the loss of the second molars, such as figure 1 A schematic representation of a missing second molar is shown. [0003] In the prior art, there are usually three solutions: [0004] The first solution: relying on the natural eruption of the impacted third molars to replace the missing second molars, but the course of treatment for this solution is too long, and the curative effect is too uncertain, especially for mandibular third molars. Three molars. [0005] The second solution: extract the impacted third molar first, and then implant the second molar, but the disadvantages of this solution are also obvious, the treatment cost is relatively high, and the ...

AI Technical Summary

Problems solved by technology

[0004] The first solution: expect the natural eruption of the impacted third molars to replace the missing second molars. Three molars

[0005] The second solution: first extract the impacted third molars, and then implant the second molars, but the disadvantages of this solution are also obvious, the treatment cost is relatively high, and at the same time, the patients bear the risk of implant treatment, which is a waste of patients Autologous teeth that are intact and can perform normal functions (that is, the extracted impacted third molars)

[0014] 1. Only applicable to high impacted third molars, not for low impacted third molars;

[0015] 2. It can only provide distal and vertical correction force, and the mesial movement is still required in the later stage, and the mesial movement of molars is the difficulty of orthodontic treatment;

[0016] 3. Some existing methods use adjacent teeth as anchorage, and adjacent teeth may tilt and move unnecessarily

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