Table 1 ICDAS scoring system for visual assessment of caries lesion (Adapted from [12, 14, 15])

0

Represents sound tooth. No evidence of caries or slight change on enamel translucency after 5 s of drying

1

First visual changes in enamel after prolonged air drying. Opacity or discolouration, such as white or brown spot, may be visible at the edge of fissure or pit

2

Obvious visual changes in enamel at wet condition and visible lesion seen when dry

3

Localized enamel breakdown without visual changes of dentine involvement is seen during wet and after prolonged drying

4

Underlying dark shadow from dentine which is more easily seen when wet

5

Obvious caries and visible dentine are seen

6

Extensive distinct caries (more than half of the surface) with visible dentine