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Method and computer system for determining occlusal relationship between upper jaw teeth and lower jaw teeth

A computer system and occlusal relationship technology, applied in the field of determining the occlusal relationship of upper and lower teeth, can solve the problems of noise sensitivity, large cumulative error, complex scanning feature points, etc.

Pending Publication Date: 2020-09-22
HANGZHOU ZOHO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has the following disadvantages: (1) scanning feature points is more complex; (2) occlusal calculation based on multiple feature point pairs is more sensitive to noise, so the cumulative error is larger

Method used

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  • Method and computer system for determining occlusal relationship between upper jaw teeth and lower jaw teeth
  • Method and computer system for determining occlusal relationship between upper jaw teeth and lower jaw teeth
  • Method and computer system for determining occlusal relationship between upper jaw teeth and lower jaw teeth

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Embodiment Construction

[0034] The following detailed description refers to the accompanying drawings which form a part of this specification. The exemplary embodiments mentioned in the specification and drawings are for illustrative purposes only, and are not intended to limit the protection scope of the present application. Under the inspiration of this application, those skilled in the art can understand that many other implementations can be adopted, and various changes can be made to the described implementations without departing from the gist and protection scope of this application. It should be understood that the various aspects of the application described and illustrated herein can be arranged, replaced, combined, separated and designed in many different configurations, all of which are within the scope of the application.

[0035] One aspect of the present application provides a computer-executed method for determining the occlusal relationship of a three-dimensional digital model of upp...

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Abstract

One aspect of the invention provides a computer-executed method for determining an occlusion relationship between upper and lower jaw teeth. The method comprises the following steps: acquiring three-dimensional digital models of the upper and lower jaw teeth; and based on the three-dimensional digital models of the upper jaw teeth and the lower jaw teeth, determining an occlusion relationship between the upper jaw teeth and the lower jaw teeth by utilizing a point cloud registration method.

Description

technical field [0001] The present application generally relates to methods and computer systems for determining the occlusal relationship of upper and lower teeth. Background technique [0002] With the rapid development of computer technology, dental treatment is increasingly using computer technology. For example, dental professionals can use computers to formulate orthodontic treatment plans. When formulating an orthodontic treatment plan, it is first necessary to determine the target tooth layout (that is, the tooth layout expected to be achieved by orthodontic treatment). Since the occlusal relationship of the upper and lower jaws needs to be considered when determining the target position of the anterior teeth (to obtain the correct overburden and coverage relationship), when using a computer to formulate an orthodontic treatment plan, it is necessary to first create a digital 3D model of the upper and lower teeth. Establish the correct occlusal relationship (or actu...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T7/30G06T7/13A61C7/00
CPCG06T17/00G06T7/30G06T7/13A61C7/002G06T2207/10028G06T2207/30036A61C7/00G06T17/20
Inventor 张长庚
Owner HANGZHOU ZOHO INFORMATION TECH CO LTD
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