Orthodontic appliances and methods of use thereof

Abstract

The invention provides a tooth correcting appliance and a use method of the tooth correcting appliance. According to the tooth correcting appliance and the use method, a molar distalization palatal bar and a micro-implant anchorage nail are combined for use, and the maxillary molar is distalized by utilizing the elastic deformation of a nickel-titanium tension spring. The tooth correcting appliance is simple in structure and small in size; when the tooth correcting appliance is cemented to the oral cavity of a patient, the foreign body sensation is tiny, the exertion of the effects of the tooth correcting appliance does not depend on the coordination of a patient, and the effects are stable; the tooth correcting appliance is easy to manufacture and operate, and the whole set of device is low in cost and price, and has no high requirements on the technologies of technicians; the blocking of the position of the micro-implant anchorage nail for the root of the distalized maxillary molar does not need to be considered, and thus the workload during the treatment period can be effectively reduced; the distal tilting and lingual rotation can not be generated, and thus the effects of improving the occluding relation and treating the posterior are achieved.

Description

technical field [0001] The invention belongs to the technical field of orthodontic treatment, and in particular relates to a dental appliance capable of achieving an ideal neutral molar relationship by moving maxillary molars away and a method for using the same. Background technique [0002] For Angle's class II malocclusion, the neutral molar relationship is usually achieved by extraction or distal movement of the maxillary molars. In the process of orthodontic treatment, the use of molar remote movement can improve the space required for tooth crowding, and can adjust the occlusion, making the orthodontic process simpler and faster. Specifically, tools such as extraoral arch, lip block, Class II traction, improved J-hook and nickel-titanium coil spring can be used for distal molar movement. The common feature of these distal molar movement methods is that the success of the treatment is largely dependent on the patient. The degree of fit; it takes a long course of treatm...

AI Technical Summary

Problems solved by technology

[0004] Yet these devices generally have the following problems: the first, make complicated

Taking the pendulum-type aligner as an example, it needs to make multiple belt rings, and the bending of the arch wire is complicated, which requires high bending skills; the palatal support of the remote molar needs waxing, casting, grinding, polishing and other processes, and there are many steps. Technicians and casting equipment are highly demanding

Second, the operation is cumbersome, and the workload during treatment is relatively large

Fourth, based on the "wedge effect", the vertical control of the molars cannot be carried out during the remote movement, resulting in the elongation of the molars, drooping of the mesial buccal tip, and elevation of the posterior height, which in turn causes the mandible of patients with skeletal type II high-angle type to develop. Rotate clockwise, the type cannot be improved after treatment

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