Oral Image Comparison for Periodontitis Bone Loss Tracking
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Solution Overview
Problem
Existing methods for diagnosing periodontitis, such as using a periodontal probe and dental radiographic images, are inconvenient and prone to inaccuracies, and there is a lack of automated systems for comparing previous and current oral states to provide meaningful notification information.
Innovation Solution
A method and terminal device that extract gum bone lines from dental images taken at different times, calculate height differences, and generate result images showing periodontitis deterioration numeric values, allowing for easy comparison and visualization of oral state changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a periodontal probe is used to diagnose periodontitis, then periodontal pocket depth can be measured, but bleeding is easily generated and diagnosis time is considerably increased
Solution Approach 1:
The patent replaces the mechanical periodontal probe with an optical imaging system (dental radiographic image) to measure periodontal pocket depth. The processing device automatically analyzes the radiographic image to determine pocket depth, eliminating the need for manual mechanical probing that causes bleeding and time-consuming procedures.
Solution Approach 2:
The system enables automatic diagnosis by having the processing device independently analyze radiographic images and generate periodontitis assessments without requiring manual intervention from medical staff to read and interpret images, thereby reducing diagnosis time while maintaining measurement precision.
2Ease of operation
If a dental radiographic image is used to diagnose periodontitis, then diagnosis can be performed without mechanical probing, but inaccurate diagnosis may occur due to subjective valuation by medical staff
Solution Approach 1:
The system introduces automated feedback mechanisms where the processing device objectively analyzes radiographic images using standardized algorithms, eliminating subjective human valuation. The device provides consistent, reproducible measurements of periodontal pocket depth and generates standardized diagnostic reports, ensuring accurate and reliable periodontitis diagnosis.
3Loss of information
If manual comparison of previous and current oral state is performed by medical staff, then oral diagnosis can be made, but the process is time-consuming and lacks automated notification
Solution Approach 1:
The patent replaces manual comparison of oral states with an automated image processing system. The processing device automatically compares current radiographic images with previous ones, identifies changes in periodontal condition, and generates meaningful notification information without requiring medical staff to manually review and compare images, thereby saving time while preserving all comparison information.
Data Source
AI summary
Provided are method of providing oral state information including periodontitis and a terminal device for executing the method. The method is executed in a processor based device and comprises: extracting a first gum bone line from user's first oral image captured in a first period; extracting a second gum bone line from user's second oral image captured in a second period after the first period; calculating a height difference in gum bones for each of the user's teeth based on the second gum bone line and the first gum bone line; selecting a first tooth having a height difference in gum bones that is more than a predetermined threshold value from among user's teeth; generating information on periodontitis deterioration numeric values of the first tooth based on the height difference of the gum bones in the first tooth; generating a result oral image by representing information on periodontitis deterioration numeric values of the first tooth in a first information representation region which is adjacent to a first tooth region that corresponds to the first tooth in the second oral image; and displaying the result oral image.