광학적 치아우식활성 검사법의 진단학적 신뢰도

Abstract

The purpose of this study was to evaluate the specificity, sensitivity, and diagnostic power of caries activity test using Light-Emitting Diode(LED) fluorescence. The subjects of this study were 55 children of 6~7 years old. LED light were irradiated to labial or buccal surface of all teeth. Fluorescence from initial carious lesion of teeth illuminated by an LED light was observed through barrier filter and the number of teeth showing lesion, size and position of lesion were counted. Dentocult? SM test and dDfFtT rate test were also done and their correlation between two tests was investigated. And then specificity, sensitivity, and diagnostic power of optical caries activity test using LED light were evaluated. The results were as follows ; 1. There was positive correlation (?=0.43) between LED fluorescence test and Dentocult? SM test(P<0.05). 2. When visual examination was defined as standard testing method, the specificity, sensitivity, and diagnostic power of LED fluorescence test were 100%, 76.1%, and 100%, respectively. 3. When dDfFtT rate was defined as standard testing method, the specificity, sensitivity, and diagnostic power of LED fluorescence test were 88.9%, 47.8%, and 95.7%, respectively. 4. When Dentocult? SM test was defined as standard testing method, the specificity, sensitivity, and diagnostic power of LED fluorescence test were 100%, 58.7%, and 100%, respectively. In regard to above results, optical caries activity test using LED light considered to be practical method because of it's close relationship with microbiological caries activity test.