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Automatic tooth arrangement method and device based on fitting optimization

An automatic, dental technology, applied in dentistry, orthodontics, prosthetics, etc., can solve the problems of low accuracy of tooth arrangement results and the dependence of tooth arrangement on the curve of the dental arch, and achieve the effect of improving the efficiency of tooth arrangement

Inactive Publication Date: 2017-11-24
XIAN UNIV OF SCI & TECH
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Problems solved by technology

The way of tooth arrangement in the above process relies too much on the dental arch curve. The dental arch curve is originally an imaginary curve drawn along the jaw. There is a certain error, which leads to low accuracy of tooth arrangement results

Method used

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  • Automatic tooth arrangement method and device based on fitting optimization
  • Automatic tooth arrangement method and device based on fitting optimization
  • Automatic tooth arrangement method and device based on fitting optimization

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] refer to figure 1 , the embodiment of the present invention provides an automatic tooth arrangement method based on fitting optimization, the method includes the following steps:

[0033] Step 100, obtaining the STL model of the tooth, obtaining the feature points of the tooth, and establishing a global coordinate system and a local tooth coordinate system. The dental feature points can be obtained by means of human-computer interaction or computer aut...

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Abstract

The invention discloses an automatic tooth arrangement method and device based on fitting optimization and relates to the technical field of orthodontics. The method comprises the following steps: acquiring a tooth STL model, and establishing a global coordinate system and a local tooth coordinate system; calculating tooth translation and rotation by adopting a method based on fitting optimization, performing collision detection on teeth at upper and lower jaws, selecting to-be-adjusted teeth, calculating to obtain a translation vector of the to-be-adjusted teeth, and translating the to-be-adjusted teeth; and finally, performing overall adjustment on dentition with boundary problems. According to the method disclosed by the invention, the problems existing in the prior art are solved, and the arranged dentition accords with normal dentition characteristics, so that the tooth arrangement efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of orthodontics, in particular to an automatic tooth arrangement method and device based on fitting optimization. Background technique [0002] Having a set of neat and healthy teeth can make people smile more confidently, catering to modern people's life concept of beauty, and orthodontic technology has gradually attracted people's attention. Tooth alignment technology is one of the key technologies of orthodontics. Thanks to the development of computer technology, computers can be used to visualize the alignment process of three-dimensional digital teeth, so that doctors and patients can understand the results of orthodontic treatment in advance. [0003] The traditional tooth arrangement method is man-machine interactive tooth arrangement. Although this method can obtain the ideal tooth arrangement effect, it is too labor-intensive. With the development of tooth arrangement technology, automatic tooth ar...

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Application Information

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IPC IPC(8): A61C7/00
CPCA61C7/002A61C2007/004
Inventor 李占利付敬鼎胡阿敏
Owner XIAN UNIV OF SCI & TECH
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