Prosthodontic tooth preparation axial surface convergence angle checker

Abstract

The invention discloses a prosthodontic tooth preparation axial surface convergence angle checker, which comprises a handle, a sliding rail and a sliding block, wherein the tail end of the handle is detachably connected with the sliding rail; the sliding block and the sliding rail are connected through a dovetail structure; the lower end of the sliding rail and the lower end of the sliding block are provided with working beaks; the opposite sides of the two working beaks are working surfaces; the included angle between the two working surfaces is 7 DEG; and the edge of each working surface is provided with a detection line. The checker has the advantages that the structure is simple; the use is convenient; the manufacturing cost is low; and the problem of inaccurate tooth preparation axial surface convergence angle judgment by naked eyes of a doctor can be well solved.

Description

technical field [0001] The invention relates to a medical device, in particular to a device for checking the result of a dental treatment operation. Background technique [0002] Oral fixed restorative treatment often requires the production of various sleeve-like dentures, which are worn on the natural teeth prepared in the shape of a conical cone, and the degree of polymerization of the opposite axial surfaces of the frustum-shaped tooth preparation is required to be controlled at 6°-8° between. If the aggregation of the axial surface is too small, the denture will be difficult to wear and fit; if the aggregation of the axial surface is too large, the denture will be poorly retained and easy to loosen and fall off. Judging the degree of polymerization of the axial surface of the tooth preparation can only be judged clinically with the naked eye. The judgment of the degree of polymerization of 6-8° is beyond the ability of the human eye and completely depends on the feelin...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a checker for the degree of polymerization of the axial surface of a tooth preparation for oral restoration, the purpose of which is to solve the problem that doctors cannot judge the degree of polymerization of the axial surface of a tooth preparation with naked eyes without a reference object.

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