Clinical diagnosis of precavitated carious lesions

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Abstract
During the 20th century, dental caries was usually diagnosed using tactile-visual criteria that detected the presence of cavitation rather than measured the disease process as a continuum that starts from the appearance of microporosity, as a result of demineralization, to the occurrence of cavitation. With increasing understanding of the dental caries process and the role of primary and secondary prevention in arresting it, sensitive and specific diagnostic systems are needed that could enable dentists to detect signs of early demineralization and possible progression of precavitated carious lesions before the occurrence of cavitation. In this review of the literature, published validity studies of diagnosis of precavitated lesions were reviewed. Overall, the current clinical diagnostic systems have low sensitivity and moderate specificity. Good reliability of diagnosing precavitated carious lesions could be obtained for diagnosing pits and fissures but for smooth tooth surfaces the reliability is poor. As our diagnostic capability of precavitated lesions improves, there is a need for a significant change in dental education, dental insurance, and dental practice to reward dentists for promoting oral health and preserving tooth structure. In this paper, a new model for classifying carious lesions based upon the type of intervention strategies is proposed to assist in this new approach of caries management.