Device for closing tooth-extraction gap of upper jaw

Abstract

The invention provides a device for closing a tooth-extraction gap of an upper jaw, and relates to the field of clinics of orthodontics. According to the device for closing the tooth-extraction gap of the upper jaw, extracted teeth are left-side and right-side first premolar teeth of the upper jaw. The device for closing the tooth-extraction gap of the upper jaw comprises a bracket, buccal tubes, an arch wire, first draw hooks and second draw hooks, wherein the bracket is used for connecting left-side and right-side second premolar teeth of the upper jaw and the first premolar teeth into a whole; the buccal tubes are attached to the buccal side surfaces of the left-side and right-side second premolar teeth of the upper jaw; the arch wire is used for connecting incisor teeth and canine teeth of the upper jaw into a whole; the first draw hooks are bonded with the labial side surfaces of left-side and right-side canine teeth of the upper jaw; the second draw hooks are bonded with the buccal side surfaces of the left-side and right-side first premolar teeth of the upper jaw; a tension spring is arranged between the first draw hook and the second draw hook on the same side; two ends of the arch wire are inserted into the buccal tubes respectively. The device provided by the invention is applicable to the carrying out of gap closure 3 days after the first premolar teeth of the upper jaw are extracted, is simple in structure, and can be used for closing the gap within a shorter time and shortening an orthodontic course of treatment.

Description

technical field [0001] The invention relates to the clinical field of orthodontics, in particular to a device for closing the gap between maxillary tooth extractions. Background technique [0002] In traditional orthodontic treatment, the brackets are first bonded directly to the teeth after tooth extraction, and the teeth are aligned and leveled through the smaller-sized niti archwire, and then replaced with 0.019inch*0.025inch stainless steel archwire to close the gap . Using the above method, it takes 4-6 months to align the dentition, but in the process of aligning and leveling, some physiological changes occur in the extraction socket (a The distance between the buccal and lingual cortical bones in the extraction area decreases, b The increase in new bone density formed by the extraction socket) will slow down the closure of the extraction gap, so it takes about 1 year for the gap to close, and for adult patients, the gap can even be closed for as long as two years. ...

AI Technical Summary

Problems solved by technology

Using the above method, it takes 4-6 months to align the dentition, but in the process of aligning and leveling, some physiological changes occur in the extraction socket (a The distance between the buccal and lingual cortical bones in the extraction area decreases, b The increase in new bone density formed by the extraction socket) will slow down the closure of the extraction gap, so it takes about 1 year for the gap to close, and for adult patients, the closure of the gap can even be as long as two years

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