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. 2014 Jul;93(7 Suppl):101S–107S. doi: 10.1177/0022034514531017

Table 1.

Description of International Caries Detection and Assessment System and Criteria Based on Features Used to Assess Caries Lesions Activity

Clinical Characteristics of Caries Lesion
Score Description Active Inactive
0 No or slight change in enamel translucency after prolonged air-drying (5 s)
1 First visual change in enamel (seen only after prolonged air-drying or restricted to within the confines of a pit or fissure) Surface of enamel is whitish/yellowish opaque with loss of luster; feels rough when the tip of the probe is moved gently across the surface; lesion is in a plaque stagnation area Surface of enamel is whitish, brownish, or black; enamel may be shiny and feels hard and smooth when the tip of the probe is moved gently across the surface
2 Distinct visual changes in enamel
3 Localized enamel breakdown in opaque or discolored enamel (without visual signs of dentinal involvement)
4 Underlying dark shadow from dentine Probably active
5 Distinct cavity with visible dentin Cavity feels soft or leathery on gently probing the dentine Cavity may be shiny and feels hard on gently probing the dentine
6 Extensive distinct cavity with visible dentine (involving more than half the surface)