An in Vivo Comparison of Two Diagnostic Methods in Secondary Caries Detection

Objective: the aim of this study was to compare the level of agreement between four op-erators with different levels of experience for two methods of detecting secondary enamel and dentin carious lesions in composite restored teeth.materials and methods: sixty teeth of 40 patients with with secondary carious lesions in the composite resin were selected. the teeth were examined by two methods; visual in-spection and a laser fluorescence device (diagno dent pen 2190) by four operators in-cluding an undergraduate student, a dentist with 5 years of clinical experience, a general dentist with 12 years of clinical experience and an oral and maxillofacial radiologist. co-hen's kappa statistic was applied in order to assess the agreement between the diagnoses performed by the four operators with each diagnostic method.results: the diagnosis performed by different operators achieved an excellent agreement with high icc.conclusion: diagnodent can be a useful device for secondary caries detection in post-erior teeth as an adjunct to visual examination.