Molar back push device

Abstract

The invention discloses a molar back push device. The device comprises at least one retention part, at least one implantation nail and at least one connecting piece; each retention part comprises a retention part and a traction hook; the retention parts are connected to the dental crown palate sides of premolar, first molar and second molar on one side of the upper jaw of an oral cavity; the traction hooks are respectively arranged at the near-middle ends of the retention parts; the implantation nails are in one-to-one correspondence with the retention parts, and each implantation nail is located between the palatal root of the first molar and the palatal root of the second molar on the same side as one retention part and is close to the second molar; and each connecting piece is connectedbetween one planting nail and one traction hook on the same side. Through the device, the molars can be moved backwards as much as possible within a physiological limit, stress application is more flexible, and adverse molar buccal inclination and tooth rotation are avoided. Meanwhile, the bonding area is increased, bonding strength is improved, intraoral stability of the device is optimized, clinical use is facilitated, and the device has good comfort.

Description

technical field [0001] The invention belongs to the technical field of orthodontics, and more particularly relates to a device for pushing back molars. Background technique [0002] Pushing the molars to the distal is a commonly used orthodontic treatment method. It has a good treatment effect on Angle’s Class II patients with mild to moderate crowding, and can change the borderline cases between extraction and non-extraction into non-extraction range, making the correction process easier. In traditional methods, such as extraoral arches and class II traction, the molar setback effect largely depends on the cooperation of the patient. In contrast, the use of implant-assisted molar pushback has high patient comfort and absolute control over the molars. However, there are still problems such as molar buccal inclination and tooth rotation. [0003] Therefore, it is expected to develop a device for pushing back the molars, which can move the maxillary molars as a whole as far ...

AI Technical Summary

Problems solved by technology

In traditional methods, such as extraoral arches and class II traction, the molar setback effect largely depends on the cooperation of the patient. In contrast, the use of implant-assisted molar pushback has high patient comfort and absolute control over the molars. However, there are still problems such as molar buccal inclination and tooth rotation

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