Method for efficiently and automatically assisting to find bite depth of teeth

Abstract

The invention provides a design method for automatically assisting to find the occlusion depth of teeth. In the method, a three-dimensional data model of dentition in which maxillary and mandibular dentitions are occluded together is collected and read; a point cloud registering method is utilized to allow scanned three-dimensional models of the maxillary and mandibular dentitions to be occluded together; a sub-interface is defined to be a generalized occlusal plane by using a graphic classification thought, and a point-to-plane distance is corresponding to the occlusion depth. The method is ingenious and does not manual participation; a tooth model with occlusion depth information is exported, visual display is performed according to the different occlusion depths, and a doctor is assisted to build a new occlusion relationship model on a computer via an intuitional image and an objective quantitative index, so as to better guide surgical treatment of orthodontics and orthognathics.

Description

technical field [0001] The invention relates to the fields of computer-aided design and machine vision, in particular to a method for obtaining the occlusal depth of teeth aided by computer graphics. Background technique [0002] Clinical orthodontics requires not only a good and stable occlusal relationship, but also an occlusal relationship specific to each tooth, that is, it is necessary to know which pair of teeth conform to the occlusal relationship, and to quantify the occlusal depth corresponding to the teeth. Therefore, how to determine a good occlusal relationship and distinguish different occlusal depths are important contents of clinical orthodontics. [0003] The traditional method is to manually adjust the plaster model of the patient's teeth to determine the final occlusal relationship. The plaster model of the tooth is digitized by laser scanning. The software uses the method of registering the occlusal area to automatically occlude the upper and lower jaws, a...

AI Technical Summary

Problems solved by technology

The disadvantages of this method include: 1) The registration process of the occlusal area often requires the doctor to continuously adjust the occlusal relationship. The doctor’s repeated adjustments will cause the occlusal relationship to change, and it is difficult to ensure that the change in the occlusal relationship is in line with the only variable (changes caused by treatment) In principle, how does it affect the judgment of the treatment effect; 2) manually select the area of ​​each tooth, which is time-consuming and laborious

However, the situation is not optimistic. On the one hand, computer science requires doctors to have rich medical knowledge, but there is indeed a problem of not knowing how to learn and use it; Said that there may be time-consuming and labor-intensive effects

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