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Design method for computer-aided bracket-free concealed teeth correcting equipment

An invisible appliance and computer-aided technology, applied in the field of digital oral cavity, can solve problems such as high cost and long production cycle, and achieve the effect of improving work efficiency and appliance accuracy

Active Publication Date: 2016-07-13
HANGZHOU MEIQI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the application of computer technology in the field of invisible orthodontics, a large amount of manual interaction and manual data processing are required, the production cycle is too long and the cost is too high

Method used

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  • Design method for computer-aided bracket-free concealed teeth correcting equipment
  • Design method for computer-aided bracket-free concealed teeth correcting equipment
  • Design method for computer-aided bracket-free concealed teeth correcting equipment

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Embodiments of the present invention are as follows:

[0034] First obtain the triangular mesh model of the patient's teeth and jaws: obtain the silicone rubber impression of the patient's full jaw teeth, digital photos in the mouth, X-rays and other materials, and then reprint the silicone rubber impression into a plaster model, and compare the patient's oral digital photos to the plaster model Repair; finally scan the plaster model to obtain a three-dimensional mesh model of the patient's teeth and jaws.

[0035] After the three-dimensional mesh model of the jaw is obtained, the three-dimensional mesh model needs to be processed so that it can be used for virtual orthodontic treatment of teeth. Processing steps such as figure 2 As shown, the specific process is:

[0036] Firstly, the region growing method is used for toot...

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Abstract

The invention discloses a design method for computer-aided bracket-free concealed teeth correcting equipment. The method comprises the following steps: sequentially carrying out tooth and jaw three-dimensional grid model acquisition, tooth segmentation and tooth rehabilitation first; then carrying out virtual gingival grid construction and virtual tooth occlusion construction; carrying out virtual correcting and carrying out motion processing on a tooth model to obtain motion information of the tooth model; carrying out deformation calculation on virtual gingival grids in the tooth model by adopting a Laplacian operator-based freedom deformation algorithm according to the motion information of the tooth model; then carrying out optimized processing and production on the processed tooth model. According to the design method disclosed by the invention, the tooth model is processed by utilizing a computer technology to obtain the correcting equipment, the correcting equipment is produced by using a 3D printing technology, the whole virtual correcting process is realized intuitively, and the working efficiency and the precision of the correcting equipment are improved.

Description

technical field [0001] The invention relates to the field of digital oral cavity, in particular to a computer-aided design method of invisible aligners without brackets. Background technique [0002] In recent years, digital oral technology has developed rapidly, and invisible orthodontics have gradually become popular. And the digital treatment assistant system plays an increasingly important role in orthodontics. The work to be completed by the digital treatment assistant system is to process the three-dimensional digital model of teeth, complete the simulation of virtual orthodontic treatment, and carry out production. [0003] However, due to the application of computer technology in the field of invisible orthodontics, a large amount of manual interaction and manual data processing are required, the production cycle is too long, and the cost is too high. Contents of the invention [0004] The present invention provides a computer-aided design method for invisible al...

Claims

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Application Information

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IPC IPC(8): A61C7/00G06T17/00
CPCA61C7/002G06T17/00
Inventor 田宇佳王春蝶宣梦洁
Owner HANGZHOU MEIQI TECH CO LTD
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