MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202621058681 A) filed by Rishiraj College Of Dental Sciences And Research Centre on May 08, 2026, for A Method And System For Ai-Assisted Orthodontic Plaque Detection Using Ph-Responsive Indicators.
Inventors include Dr. Varad Vaidya; Dr. Shuchi Singh; Dr. Kshitij Gupta; Dr. Abhilasha Mishra; Dr. Garima Chouksey; Dr. Shweta Mahajan; Dr. Fiza Pathan; and Dr. Rasika Rane.
The application for the patent was published on July 03, 2026, under issue no. 27/2026.
Abstract: ABSTRACT A Method and System for AI-Assisted Orthodontic Plaque Detection Using pH-Responsive Indicators The present invention relates to an AI-assisted orthodontic diagnostic system for monitoring oral hygiene conditions using image-based analysis of pH-responsive indicators. The system comprises an orthodontic bracket integrated with a micro-scale pH-sensitive indicator configured to generate a visible colorimetric response corresponding to localized acidic conditions caused by plaque accumulation. An image acquisition device captures the indicator response, and a processing unit performs feature extraction including color intensity and spatial distribution analysis. A lightweight analytical framework, including rule-based mapping and limited machine learning, interprets the extracted features to classify plaque severity and assess enamel demineralization risk. The system provides user-oriented outputs such as visual indicators, risk scores, and advisory notifications without requiring active intraoral electronic components. The invention enables continuous, non-intrusive, and localized monitoring of oral conditions, improves diagnostic objectivity, and supports preventive orthodontic care through early detection of plaque-induced acidity and associated risks. Fig.3
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