Table 1 Criteria for the scores of the histological caries lesion depth [[4]]
From: Evaluating performance of dental caries detection methods among third-year dental students
Score | Visual criteria | Histological criteria |
|---|---|---|
0 | No or slight change in enamel after prolonged air drying | Sound |
1 | Opacity or discoloration hardly visible on wet surface but distinct after air drying | Caries/Radiolucency extending to the outer half of the enamel |
2 | Opacity distinctly visible without air drying | Caries/Radiolucency extending to the inner half of the enamel or the outer third of dentine |
3 | Localized enamel break- down in opaque or discolored enamel and/or grayish discoloration from the under lying dentine | Caries/Radiolucency extending to the middle third of the dentine |
4 | Cavitation in opaque or discolored enamel exposing the dentine | Caries/Radiolucency extending to the inner third of the dentine |