Table 2 Number and percentage of distolingual roots in permanent mandibular first and second molars according to song’s classification
Tooth type | I (%) | II (%) | III (%) | Small (%) | Conical (%) |
|---|---|---|---|---|---|
Mandibular first molars (n = 225) | 1 (0.4) | 19 (8.4) | 204 (90.7) | 1 (0.4) | 0 (0) |
Mandibular second molars (n = 11) | 0 (0) | 2 (18.2) | 9 (81.8) | 0 (0) | 0 (0) |
Total (n = 236) | 1 (0.4) | 21 (8.9) | 213 (90.3) | 1 (0.4) | 0 (0) |