Three-dimensional tooth shape restoration method and system based on two-dimensional tooth beautifying characteristic line

Abstract

The invention provides a three-dimensional tooth shape restoration method and system based on a two-dimensional tooth beautifying characteristic line, and belongs to the field of oral cavity medical treatment. The method comprises the following steps: (1) obtaining the two-dimensional tooth beautifying characteristic line and a three-dimensional dentition model; (2) converting the two-dimensionaltooth beautifying characteristic line into a three-dimensional tooth beautifying characteristic line, and then registering the three-dimensional tooth beautifying characteristic line and the three-dimensional dentition model to obtain a registered three-dimensional dentition model; (3) extracting a dental model contour of a to-be-restored body on the registered three-dimensional dentition model; and (4) deforming the three-dimensional dentition model according to the dental model contour of the to-be-repaired body and the three-dimensional tooth beautifying characteristic line to obtain a three-dimensional tooth beautifying repair dental model. The method is very high in efficiency, can calculate the aesthetic restoration result on the three-dimensional to-be-restored body under the guidance of the two-dimensional tooth characteristic feature line, and meets the requirements of quickly realizing dental model aesthetic restoration.

Description

technical field [0001] The invention belongs to the field of oral medicine, and in particular relates to a three-dimensional tooth shape restoration method and system based on two-dimensional aesthetic tooth feature lines. Background technique [0002] With the development of the economy, the focus of people's dental care has changed from solving diseases to improving people's quality of life. For example, patients are not only satisfied with restoring the basic chewing function, but pay more attention to the beauty and appearance of their restored teeth. There are many kinds of defects that affect the aesthetics of front teeth, including missing teeth, poor tooth color, misaligned teeth, excessive gaps between teeth, missing teeth, and poor esthetics of the gums. However, aesthetics is highly subjective, and the traditional inefficient method of making restorations can no longer meet the needs. The application of digital technology provides great possibility and convenien...

AI Technical Summary

Problems solved by technology

[0005] In terms of oral restoration systems, most of the current research on automatic restoration of teeth is based on standard tooth libraries, which only perform functional restoration on a single tooth, and seldom consider the overall aesthetics of the dentition.

Secondly, many dental restoration systems adjust the shape and size of the 3D tooth model by manually selecting points and manually dragging and dropping. universal

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