Effect of drying on the reproducibility of DIAGNOdent to detect caries-like lesions

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Pinelli, Camila [UNESP]
Loffredo, Leonor de Castro Monteiro [UNESP]
Serra, Mônica Campos
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The aim of this study was to verify the drying effect on the reproducibility of DIAGNOdent (Dd) devices to detect caries-like lesions. Three areas were created in each of the 34 bovine incisors: sound (S), demineralized (DE) and remineralized (RE). One examiner measured each area with two Dd devices (denominated X and Y), twice under humid, and twice under dry condition. Intra-rater agreement according each device and inter-device agreement were estimated by kappa statistics (κ). Intra-rater agreement for device Y was substantial under humid (κ DE=0.68 and κ RE+S=0.68) and dry condition (κ DE=0.64 and κ RE+S=0.67). For device X, it was substantial under humid condition (κ DE=0.57 and κ RE+S=0.49), and it was almost perfect after air drying (κ DE=1.0 and κRE+S=1.0). Inter-device agreement was slight (κ =0.17) under humid condition, and it was substantial under dry condition (κ =0.62). As reproducibility increased under dry condition, drying is advised to detect caries-like lesions on free smooth surfaces when different devices are used.
Dental caries, Fluorescence, Lasers, Reproducibility of results, Tooth demineralization, diagnostic agent, animal, cattle, comparative study, dental care, dental caries, desiccation, humidity, laser, observer variation, pathology, randomization, reproducibility, tooth, tooth disease, Animals, Cattle, Dental Caries, Desiccation, Humidity, Observer Variation, Random Allocation, Reproducibility of Results, Tooth, Tooth Demineralization, Tooth Remineralization
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Brazilian Dental Journal, v. 21, n. 5, p. 405-410, 2010.