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23.01.2019 | Original Article | Ausgabe 6/2019

Lasers in Medical Science 6/2019

Performance of light-emitting diode device in detecting occlusal caries in the primary molars

Zeitschrift:
Lasers in Medical Science > Ausgabe 6/2019
Autoren:
Michele B. Diniz, Priscila H. Campos, Sabrina Wilde, Rita de Cássia L. Cordeiro, Andréa G. F. Zandona
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Abstract

This in vitro study aimed to compare the performance of a light-emitting diode (LED) device (Midwest Caries I.D.: MID), International Caries Detection and Assessment System (ICDAS) visual criteria, and fluorescence-based devices (DIAGNOdent: LF; DIAGNOdent pen: LFpen; and Quantitative Light-induced Fluorescence: QLF) in detecting occlusal caries in the primary molars. Eighty-eight primary molars with sound occlusal surfaces or carious lesions at different stages were assessed twice, with a 1-week interval in between, by one examiner using all three methods. Subsequently, the teeth were sectioned and lesion depth was verified using stereomicroscopy as a gold standard. Sensitivity, specificity, and accuracy were calculated at D1 (all carious lesions—enamel and dentin) and D3 (dentin lesions) thresholds. Correlation with histological analysis was evaluated using Spearman’s rank correlation coefficients (rho). Weighted Kappa and intraclass-correlation (ICC) coefficients were calculated to assess intra-examiner reproducibility. At D1 threshold, ICDAS and LFpen showed higher sensitivity than the other methods, whereas ICDAS, LF, and QLF showed higher specificity (p < 0.05), and MID showed lower accuracy. At D3 threshold, ICDAS, LFpen, and QLF showed higher sensitivity than MID, whereas ICDAS, LF, and MID showed higher specificity (p < 0.05). All methods, except MID, showed statistically similar accuracy values (p < 0.05). Correlations with histopathological analysis varied from 0.15 (MID) to 0.57 (ICDAS). Intra-examiner reproducibility varied from 0.30 (MID) to 0.92 (ICDAS, LF, and QLF). The MID device exhibited a poor performance in detecting occlusal carious lesions in the primary molars, and ICDAS visual criteria exhibited greater accuracy than LF, LFpen, and QLF devices.

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