Table 1.

Visual examination criteria according to ICDAS.

Score	Examination Criteria
0	Sound tooth surface when probing: no evidence of caries after 5 s air drying
1	First visual change in enamel: opacity or discoloration (white or brown) is visible at the entrance to the pit or fissure after prolonged air drying
2	Distinct visual change is enamel visible when wet: lesion must still be visible when dry