Journal
HEALTH INFORMATICS JOURNAL
Volume 27, Issue 2, Pages -Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/14604582211007530
Keywords
artificial intelligence; caries detection; computer modeling; digital imaging; image analysis; machine learning
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This study introduces a computational algorithm for automated recognition of carious lesions on tooth occlusal surfaces according to ICDAS. Using smartphone images of 620 teeth, a two-step detection scheme was proposed with SVM, showing promising potential for clinical diagnostics with reasonable accuracy and minimal cost.
Untreated caries is significant problem that affected billion people over the world. Therefore, the appropriate method and accuracy of caries detection in clinical decision-making in dental practices as well as in oral epidemiology or caries research, are required urgently. The aim of this study was to introduce a computational algorithm that can automate recognize carious lesions on tooth occlusal surfaces in smartphone images according to International Caries Detection and Assessment System (ICDAS). From a group of extracted teeth, 620 unrestored molars/premolars were photographed using smartphone. The obtained images were evaluated for caries diagnosis with the ICDAS II codes, and were labeled into three classes: No Surface Change (NSC); Visually Non-Cavitated (VNC); Cavitated (C). Then, a two steps detection scheme using Support Vector Machine (SVM) has been proposed: C versus (VNC+NSC) classification, and VNC versus NSC classification. The accuracy, sensitivity, and specificity of best model were 92.37%, 88.1%, and 96.6% for C versus (VNC+NSC), whereas they were 83.33%, 82.2%, and 66.7% for VNC versus NSC. Although the proposed SVM system required further improvement and verification, with the data only imaged from the smartphone, it performed an auspicious potential for clinical diagnostics with reasonable accuracy and minimal cost.
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