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Tooth row method and device

A technology of tooth arrangement and dentition, applied in the field of oral cavity, can solve the problems of inaccurate tooth arrangement results and low efficiency of tooth arrangement plan switching, and achieve the effect of improving efficiency

Active Publication Date: 2020-08-11
北京正齐口腔医疗技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the tooth arrangement method and device provided by the present invention aim to solve the problems of inaccurate tooth arrangement results and low switching efficiency of tooth arrangement schemes in the prior art

Method used

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  • Tooth row method and device
  • Tooth row method and device

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Effect test

example 1

[0105] It is known that the tooth 31 is missing congenitally, and the user requests to reserve a gap for the restoration of the tooth 31, the automatic tooth arrangement process is as follows:

[0106] A1. Perform virtual complement processing on the original dentition image, that is, add the mirror surface of the tooth 41 to the position of the tooth 31 to obtain a complete dentition image.

[0107] A2. Use the buccal cusps of the premolars and the buccal cusps of the molars in the complete dentition image to perform fitting and generation functions plane; aligning the craniomaxillofacial midsagittal plane with the functional The intersection line of the plane is set as the Y axis; place the upper central incisor mesial contact point in the function The projection on the plane is set to the origin; passing through the origin corresponds to the function Make a vertical line on the plane to get the Z axis; move the function along the positive and negative directions of th...

example 2

[0113] A number of dental caries cases were known. Tooth 16 had a history of large area filling treatment, and the cusp was missing. The user requests to extract teeth 14, 24, 36, and 45, and requires the upper anterior teeth to be retracted by 3 mm and to maintain correct overburden. cover. The process of automatic teeth arrangement is as follows:

[0114] B1. Performing virtual complement processing on the original dentition image, that is, repairing the features of the tooth 16 defect according to the tooth 26 to obtain a complete dentition image.

[0115] B2. Using the buccal cusps of the premolars and the buccal cusps of the molars in the complete dentition image to perform fitting and generating functions plane; aligning the craniomaxillofacial midsagittal plane with the functional The intersection line of the plane is set as the Y axis; place the upper central incisor mesial contact point in the function The projection on the plane is set to the origin; passing ...

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Abstract

The invention discloses a tooth arrangement method and device, relates to the technical field of oral cavities, and can solve the problems of inaccurate tooth arrangement results and low switching efficiency of a tooth arrangement scheme in the prior art. The method mainly includes the steps: virtually complementing a primary dentition image to obtain an integrated dentition image; performing tooth arrangement on the integrated dentition image according a preset tooth arrangement rule to obtain an initial tooth arrangement result; adjusting the initial tooth arrangement result according to preset adjusting requirements to obtain an adjusted tooth arrangement result; removing virtually complemented teeth if the adjusted tooth arrangement result exists virtually complemented teeth. The method is mainly applicable to automatic tooth arrangement scenes.

Description

technical field [0001] The invention relates to the technical field of oral cavity, in particular to a method and a device for arranging teeth. Background technique [0002] With the development of digital medicine, the field of dentistry has also gradually entered digitalization. When a person's appearance is affected by irregular teeth, the doctor can use digital oral technology to provide him with a reasonable tooth arrangement plan, and then use the tooth arrangement plan to make an orthodontic appliance for orthodontics. [0003] At present, the most common tooth arrangement scheme is: first directly select the feature points on the original tooth image, then connect the feature points to make a tooth arrangement curve, and finally arrange the teeth according to the tooth arrangement curve. However, since the existing solution is to select feature points in the original tooth image, when the original teeth are missing or damaged, the selected feature points will be ina...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C7/00G06T7/00
CPCA61C7/002A61C2007/004G06T7/0012G06T2207/30036
Inventor 王硕
Owner 北京正齐口腔医疗技术有限公司
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