Implant anchorage combined single-side arch expansion device

Abstract

The invention discloses an implant anchorage combined single-side arch expansion device, which comprises a first base supporter, a second base supporter, a first base, a second base, a screw rod and aguide rod, wherein the first base is arranged in the first base supporter; the second base is arranged in the second base supporter; the screw rod and the guide rod penetrate through the first base and the second base; a driving hole is formed in the middle part of the screw rod; the implant anchorage combined single-side arch expansion device also comprises an expansion crown and a position limiting crown; the expansion crown is fixedly connected with the first base; the position limiting crown is fixedly connected with the second base; a tooth crown accommodating cavity is formed between the tail end of the expansion crown and the tail end of the position limiting crown; a planting nail hole is formed in the second base supporter. The implant anchorage combined single-side arch expansion device has the advantages that the single-side arch expansion is used; at the opposite side, a planting nail implant anchorage is implanted into the bone; an absolute anchorage is fixed at the normal side; the unnecessary expansion on the normal side dental arch is avoided. A second connected crown can ensure the final restoration position of the jaw and the tooth, and the excessive correction is avoided.

Description

Technical field: [0001] The invention relates to a plant anchorage combined unilateral arch expander. Background technique: [0002] In the clinical work of orthodontics, malocclusions such as unilateral narrow dental arch, crowded teeth, unilateral overbite (underbite) and partial jaw often occur. It is necessary to expand the dental arch to stimulate the development of the upper jaw. Traditional arch expanders use teeth as anchorages to transmit force to the maxilla, which inevitably leads to buccal inclination of contralateral anchorage teeth, changes the original good dental arch shape, and is not conducive to oral hygiene. In addition, in the correction process of the traditional bilateral arch expander, the final position of the jaw is observed by the naked eye. There is no fixed and objective measurement standard, and over-correction will occur. Invention content: [0003] The present invention provides an implant anchorage combined unilateral arch expander in ...

AI Technical Summary

Problems solved by technology

The traditional arch expander uses the teeth as anchorages to transmit the force to the maxilla, which inevitably leads to buccal inclination of the contralateral anchorage teeth, which changes the original good dental arch shape and is not conducive to oral hygiene.

In addition, in the correction process of the traditional bilateral arch expander, the final position of the jaw is observed by the naked eye. There is no fixed and objective measurement standard, and over-correction will occur.

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