Table 5. Morphology of the distolingual root (entomolaris) based on Song et al. [30] classification. (n = 741).
| Sex | Jaw side | Total No. of patients | Total No. of teeth | Song et al. [30] classification | ||||
|---|---|---|---|---|---|---|---|---|
| Type I | Type II | Type III | Small type | Conical type | ||||
| Male | Bilateral | 2 | 4 | 0 | 2 | 2 | 0 | 0 |
| Unilateral | 8 | 8* | 2 | 2 | 3 | 1 | 0 | |
| Total | 10 | 12 | 2 | 4 | 5 | 1 | 0 | |
| Female | Bilateral | 3 | 6 | 2 | 2 | 2 | 0 | 0 |
| Unilateral | 13 | 13 | 7 | 2 | 3 | 1 | 0 | |
| Total | 16 | 19 | 9 | 4 | 5 | 1 | 0 | |
| Grand total | 26* | 31 (4.2%) | 11 (1.5%) | 8 (1.1%) | 10 (1.3%) | 2 (0.3%) | 0 | |
*The other 2 teeth of 2 patients were type B of Carlsen and Alexandersen [29] classification.