Score | Criterion |
---|---|
F0 | No demineralisation |
F1 | Demineralisation confined to the outer half of the enamel |
F2 | Demineralisation in the inner half of the enamel |
3 | Demineralisation broken enamel-dentine junction but without obvious spread in the dentine |
F3 | Demineralisation with obvious spread in the outer half of the dentine |
F4 | Demineralisation with obvious spread in the inner half of the dentine |