Table 3.

International Caries Detection and Assessment System (ICDAS) scores [15].

Score	Classification criteria
0	No or subtle change in enamel translucency after prolonged drying (5s) in area of biofilm accumulation
1	Visible white spot after drying (no loss of surface continuity) or pigmentation restricted to confines of a pit or fissure
2	White spot visible on wet surface (no loss of surface continuity) or pigmentation that extrapolates confines of a pit or fissure
3	Localized cavitation (or loss of continuity) in opaque or pigmented enamel
4	Underlying dark shadow from dentin, with or without cavitation of enamel
5	Cavitated enamel with exposure of the underlying dentin, involving up to half of the analyzed surface
6	Cavitated enamel with exposure of the underlying dentin, involving more than half of the analyzed surface