Method for generating gum penetrating surface of dental implant abutment

Abstract

The invention discloses a method for generating a gum penetrating surface ofa dental implant abutment, which comprises the following steps of: 1, obtaining an input abutment gingival line L1b and aninterface line L2p, determining a concave-convex form of a gingival penetration surface according to parameters set by a user, and creating a skeleton line between the L1b and the L2p by using an equal-proportion line creation method; 2, dividing the skeleton line generated in the step 1 into two parts, wherein the joint skeleton line part SL1 close to the interface line L2p comprises two curves,and the main form skeleton line part SL2 close to the abutment gingival line L1b comprises other majority curves; 3, respectively setting out the connection skeleton line SL1 and the main form skeleton line SL2 which are separated in the step 2 as curved surfaces, setting out the SL1 part as a connection curved surface M1u by using simple setting out, and setting out the SL2 part as a main form curved surface M2d by using setting out; and step 4, splicing the joining curved surface M1u and the main form curved surface M2d generated in the step 3 into a complete gum penetrating surface. According to the method, the steps of lofting and grid splicing are separated into simpler and more efficient steps.

Description

technical field [0001] The invention relates to a fast and high-detail controllable method for generating the gingival surface of the dental implant abutment using computer technology. In the algorithm, the gingival surface of the dental implant abutment is quickly generated by separating lofting and mesh splicing . Background technique [0002] At present, oral disease has become a common disease worldwide, and most of the defects of the general crown need to adopt the method of dental implant. Among them, dental implants are usually composed of implants, abutments and restoration crowns, and the abutments play an important role, not only connecting the implants and restoration crowns, but also contacting the gums. The part of the abutment that contacts the gingiva is the transgingival surface. The design of this part is particularly important, as it is related to the stability and comfort of the implant. Deviations in the shape of the transgingival surface can easily lead...

AI Technical Summary

Problems solved by technology

Using the direct lofting method, the surface at the position of the interface line or the position of the abutment interface line will cause deviations in the final transgingival surface model due to the deviation of the lofting; use the method of interpolation and form a triangular mesh model, because the interface line There are fewer points, which often leads to the lower controllability of the overall shape of the transgingival surface near the interface line, and obvious edges and corners are prone to appear, which requires manual modification in the later stage, which reduces the production efficiency of dental implants

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