Table 1 Number and percentage of distolingual roots in permanent mandibular first and second molars according to Carlsen and Alexandersen’s classification
Tooth type | A (%) | B (%) | C (%) | AC (%) |
|---|---|---|---|---|
Mandibular first molars (n = 277) | 2 (0.7) | 3 (1.1) | 271 (97.8) | 1 (0.4) |
Mandibular second molars (n = 11) | 2 (0.2) | 0 (0) | 9 (81.8) | 0 (0) |
Total (n = 288) | 4 (1.4) | 3 (1) | 280 (97.2) | 1 (0.3) |