Curved gap retainer

Abstract

The invention provides a curving gap retainer, relates to the field of teeth, and provides the curving gap retainer. The device comprises a belt ring, a mesial tube, an arch wire and a loop, the mesial tube is fixedly connected to the mesial surface of the belt ring, the arch wire is bent into a plurality of U-shaped bends, and the bent part of the U-shaped bend in the middle of the arch wire is formed by bending the arch wire into a circle; and one end of the arch wire is arranged in the mesial tube. The retainer can be directly applied to the oral cavity and is very good in performance. The length of the whole small loop can be adjusted by adjusting the two small loops so that the small loop can adapt to odontoprisis gaps of different widths, the distal free end of the small loop is inserted into the first permanent molar mesial tube, and the mesial free end is inserted into the resin groove or the fixing piece groove. The tooth-missing gap can be effectively kept, and the mesial inclined first molar can be straightened. The design and manufacture are simple, the chair-side operation time is short, and the patient does not feel uncomfortable and is easily accepted. The invention is applied to the field of teeth.

Description

technical field [0001] The invention relates to the field of teeth, in particular to a coil space retainer. Background technique [0002] Primary teeth play a very important role in a child's growth and development. As the masticatory organs of children, deciduous teeth not only have the functions of chewing, pronunciation, aesthetics, maintaining the length of the dental arch, and promoting the normal development of the maxillofacial area. It also plays an active role in the guidance and eruption direction of permanent teeth. The maintenance of the physiological space of deciduous teeth can well induce the normal eruption of permanent teeth. Clinically, the premature loss of deciduous teeth due to serious dental caries, periapical diseases of the pulp and other reasons will not only affect the function of deciduous teeth, but also cause the loss of its physiological space maintenance function, thus affecting the normal function of subsequent permanent teeth. The location...

AI Technical Summary

Problems solved by technology

But it has some disadvantages: 1. It needs to take an impression, bend the wire loop and weld in the laboratory. The patient needs to see a doctor again before wearing it. The chairside visit takes a long time. Once a clinical problem occurs, it cannot be modified in the mouth and can only be removed. redo

2. It is prone to desoldering during the treatment process, and welding fracture at the occlusal contact is also a common cause of failure

Studies have shown that the gap maintenance failure rate of wire loop space maintainers is as high as 37% due to the strip ring falling off due to desoldering

3. The wire loop space maintainer does not have the effect of expanding the gap. During the treatment process, due to the development of the jaw, the gap

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