Use of twisted wire in oral orthodontic aligning stage

Abstract

The invention discloses a usage of a twisted silk in the orthodontic aligning stage, the twisted silk is applied in the initial stage-dentition aligning state of the non-extraction orthodontic treatment for the cases with mild-moderate crowded anterior teeth (less than 7mm), which can rapidly align the crowded anterior dentition under the premise of not frequently replacing an arch wire. The application of the invention can rapidly align the mild-moderate crowded dentition, especially in the cases that the anterior teeth are all crowded or have the torsion of teeth caused by the crowd; compared with the nickel-titanium wire aligning technical, the invention has significant advantages. The usage can rapidly align the dentition and shorten the time needed by the aligning stage, the elasticity of the arch wire is good and easy to be arranged in a slot, the strength is flexible, durable and adjustable; the arch wire does not need to be frequently replaced; the operation time beside a chair is short during the return visit; and the comfort for a patient is high.

Description

technical field [0001] The invention belongs to the technical field of orthodontics, and in particular relates to the use of twisted silk in the initial stage of orthodontic alignment. In the initial stage of dentition alignment in non-extraction cases, twist wires with U-shaped curves are used to quickly relieve crowding and align dentition. Background technique [0002] In the field of orthodontics, crowding of anterior teeth is the most concerned malocclusion for most patients. Dental crowding is the most common type of malocclusion, and the reports vary from 30% to 70% in different populations. The incidence of crowding tends to increase with age. Clinically, more than 80% of the patients come to see a doctor because of the unevenness caused by the crowding of the anterior teeth. Usually, for severe crowding (>7mm), the dentition is aligned by extracting the bicuspids to obtain gaps; for mild to moderate crowding (<7mm), doctors often use partial development of ...

AI Technical Summary

Problems solved by technology

The elasticity and shape memory effect properties of nickel-titanium arch wire are helpful for aligning teeth. However, for teeth that are twisted or overlapped due to crowding, it is difficult for the arch wire to enter the slot or to relieve crowding. Doctors often use the method of gradually tightening the ligature wire to arrange Aligned twisted teeth, longer and more attachments

As a result, the number of follow-up visits is more and the treatment cycle is prolonged

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