Digitizing design method of individual function bionic crown shape

A design method and technology of bionic teeth, applied in dentistry, dental prosthesis, medical science, etc., can solve problems such as failure to achieve the goal of bionic design, insufficient ability to design individual physiological functions and shapes, etc.

Active Publication Date: 2019-11-22
PEKING UNIV SCHOOL OF STOMATOLOGY
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Problems solved by technology

[0002] The existing digital design methods for the shape of fixed dentures are mainly divided into database method, mirror image method and replication method. Although the anatomical shape of the crow

Method used

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Embodiment Construction

[0015] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0016] A digital design method for the profile of a bionic dental crown with individual functions according to the present invention is characterized in that it has the following steps:

[0017] 1) Batch scanning of normal occlusion and maxillary dentition as a standard template database;

[0018] 2) Scan the preparation of the tooth to be repaired, the adjacent teeth, and the opposing teeth, and record it as data D1;

[0019] 3) Take the adjacent teeth and opposing teeth in D1 as the common area to match with each standard data in the standard template database, and select a group with the smallest deviation value as the matching data D2;

[0020] 4) Use the crown data of the same tooth position as the tooth to be restored in D2 to fuse with the preparation of the tooth to be restored to generate the initial data of the restoration; ...

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Abstract

The invention relates to a digitizing design method of an individual function bionic crown shape. The digitizing design method comprises the steps that upper and lower jaw tooth columns in normal occlusion are scanned in batches as a standard template database; tooth position preparation bodies to be repaired, adjacent teeth and opposite jaw teeth are scanned to be recorded as data D1; the adjacent teeth and the opposite jaw teeth in the D1 are used as common areas to be correspondingly matched with data in the standard template database, and matched data D2 are selected; crown data in the D2which have the same tooth position with teeth to be repaired are fused with the tooth position preparation bodies to be repaired, and initial data of the repairing bodies are generated; intercuspal occlusion is conducted, and no intersection between the opposite jaw teeth is adjusted; a functional occlusal surface on a tooth crown of an opposite side same area of the two mesiocclusion and distocclusion adjacent teeth and a tooth arch is extracted, and a movement trail of the tooth position to be repaired is generated; and an enveloping surface of the movement of the opposite jaw tooth cusps istaken as a functional occlusal surface form of the teeth to be repaired. According to the digitizing design method, the process of designing of tooth bionic axial surfaces, the functional occlusal surfaces and physiological wearing surfaces by a senior dental expert can be imitated, and rapid bionic designing is achieved.

Description

technical field [0001] The invention relates to a three-dimensional design of the most suitable fixed denture shape for the shape of a tooth crown, in particular to a digital design method for the shape of a bionic tooth crown with individual functions. Background technique [0002] The existing digital design methods for the shape of fixed dentures are mainly divided into database method, mirror image method and replication method. Although the anatomical shape of the crown to be repaired can be quickly reconstructed, the ability to design the shape of individual physiological functions is significantly insufficient and has not reached the ideal. bionic design goals. Contents of the invention [0003] The purpose of this invention is to provide a digital design method for the shape of a bionic dental crown with individual functions, which can imitate the process of senior dental experts designing the bionic axial surface, functional occlusal surface and physiological wear...

Claims

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Application Information

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IPC IPC(8): A61C13/00
CPCA61C13/0004
Inventor 孙玉春陈虎王勇周永胜叶红强白鹤飞马珂楠
Owner PEKING UNIV SCHOOL OF STOMATOLOGY
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