Table 2. | Digital imaging fiber-optic transillumination scores used to classify depth of approximal carious lesions |
| 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 |
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