A method for digitally generating full crown and bridge connectors

Abstract

The invention discloses a digitalized generation method for a full-crown bridge connector. The digitalized generation method is characterized in that according to different anatomic forms of teeth, three types of cross section panels are predefined, the proper cross section panel is automatically selected according to the type and size of a prosthesis model, the cross section panel is automatically shaped and located, and a skin profiling algorithm is applied to quickly generate a basically correct connector curved surface; a simple and curved surface editing function is designed, the shape ofa boundary curve can be changed by moving a control point of a projection curve or a middle profiling point, and a new mesh curved surface is generated in real time, so as to easily obtain connectorswith different shapes; the change in the strength of the connector is fed back in real time according to the change of the cross section area of the middle part of the connector, so as to provide visual judging basis of the connector for an operator. The digitalized generation method for the full-crown bridge connector can be widely applied to the field of prosthesis of false teeth.

Description

technical field [0001] The invention relates to the field of denture restoration, in particular to a method for digitally generating a full crown bridge connector. Background technique [0002] In recent years, the application of CAD / CAM technology in the field of oral restoration has achieved rapid development. Compared with traditional manual restoration methods, oral CAD / CAM technology has significantly reduced the labor intensity of dental technicians and greatly improved restoration efficiency. , with better restoration quality, and at the same time meet the design requirements of personalized restorations. In oral clinical restoration, when one or more adjacent teeth are completely missing, it is impossible to prepare the missing teeth, and a full crown bridge is required for restoration. A full crown bridge generally consists of 3 parts: retainer, pontic and connector. The connector is the middle part connecting the retainer and the pontic, so that the retainer and ...

AI Technical Summary

Problems solved by technology

[0011] (1) The initially generated connector has a single shape, and a large number of editing operations are involved in the subsequent steps;

[0012] (2) The editability of the connector is poor, and the shape of the connector cannot be flexibly changed according to the design requirements;

[0013] (3) The operation is complicated, and parameters need to be input, and the final parameters are often determined through trial and error;

[0014] (4) During the design process, the strength change of the connecting body cannot be detected in real time, leaving hidden dangers of insufficient strength

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