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Automatic caries grading method and system based on panoramic film

An automatic grading and panoramic film technology, applied in medical automatic diagnosis, image analysis, medical data mining and other directions, can solve problems such as the inability to realize the classification of dental health status and automatic caries classification, and achieve the effect of assisting clinical diagnosis.

Pending Publication Date: 2022-04-12
HANGZHOU DIANZI UNIV
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Problems solved by technology

[0007] The present invention aims to overcome the problems in the prior art that the existing clinical diagnosis of dental caries mainly relies on inspection and probes, which is highly subjective and cannot realize the classification of dental health status and automatic grading of dental caries. A panoramic film-based caries automatic grading method and system that can realize the classification of dental health status and the automatic grading of caries and reduce the workload of clinicians

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  • Automatic caries grading method and system based on panoramic film
  • Automatic caries grading method and system based on panoramic film
  • Automatic caries grading method and system based on panoramic film

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Embodiment 1

[0060] Such as figure 1 As shown, the present invention uses deep learning technology to obtain the instance segmentation of panoramic teeth and the tissue segmentation results of each tooth. On this basis, the automatic grading of dental caries is realized by using the overlap of carious areas and different areas of dental healthy tissues. . The specific process is as figure 1 shown.

[0061] The caries automatic grading method based on the panoramic film comprises the following steps:

[0062] S1, segment and crop the tooth instance of the panorama, and obtain the instance segmentation sample of a single tooth in the panorama;

[0063] S2, using the trained tooth rough classification model, divide the tooth instance sample obtained in step S1, and classify the restoration state and the non-restoration state;

[0064] S3, after the tooth samples in the non-restored state in step S2 are trained through the tooth tissue semantic segmentation model, several different regiona...

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Abstract

The invention belongs to the technical field of oral cavity image intelligent diagnosis, and particularly relates to a caries automatic grading method and system based on a panoramic film. The method comprises the following steps: S1, segmenting and cutting a tooth instance of a panoramic film to obtain an instance segmentation sample of a single tooth in the panoramic film; s2, using the trained tooth coarse classification model to segment the obtained tooth instance into samples, and performing restoration state and non-restoration state classification; s3, after the tooth samples in the non-repair state pass through the trained tooth tissue semantic segmentation model, a plurality of different regional tissues of the segmented teeth are obtained; and S4, according to the obtained tissue conditions of different areas of each tooth, dividing the tooth into four grades of healthy, shallow caries, medium caries and deep caries through a caries grading model according to caries grade diagnosis standards. The system and the method have the characteristics that classification of tooth health states and automatic classification of caries can be realized, and the workload of clinicians is reduced.

Description

technical field [0001] The invention belongs to the technical field of oral cavity image intelligent diagnosis, and in particular relates to a caries automatic grading method and system based on a panoramic film. Background technique [0002] Oral health is an important part of overall health and an important symbol of residents' physical and mental health and civilization. In addition to causing dental pain and directly affecting physiological functions such as chewing food and pronunciation, oral diseases are also closely related to other diseases in the body, such as stroke, heart disease, diabetes, and digestive system. Digital medical imaging technologies in the dental field include root tip films, panoramic X-ray films, optical coherence tomography, cone-beam computed tomography, and three-dimensional oral scans. Dental caries is a progressive lesion caused by demineralization of tooth hard tissues. It is one of the three major oral diseases recognized by the World He...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/11G16H30/40G16H50/20G16H50/70G06K9/62G06V10/764G06V10/82
Inventor 陈庆光黄俊超
Owner HANGZHOU DIANZI UNIV
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