Table 3.
Number of roots in maxillary premolars
| Number of roots | Gender | Tooth position | ||||
|---|---|---|---|---|---|---|
| Male | Female | Total | Left side | Right side | Total | |
| First premolars | ||||||
| One root n (%) | 68 (29.3) | 131 (48.9) | 199 (39.8) | 105 (42.0) | 94 (37.6) | 199 (39.8) |
| Two roots n (%) | 156 (67.2) | 137 (51.1) | 293 (58.6) | 141 (56.4) | 152 (60.8) | 293 (58.6) |
| Three roots n (%) | 8 (3.4) | 0 (0) | 8 (1.6) | 4 (1.6) | 4 (1.6) | 8 (1.6) |
| Second premolars | ||||||
| One root n (%) | 179 (76.5) | 237 (89.1) | 416 (83.2) | 211 (84.4) | 205 (82.0) | 416 (83.2) |
| Two roots n (%) | 50 (21.4) | 29 (10.9) | 79 (15.8) | 36 (14.4) | 43 (17.2) | 79 (15.8) |
| Three roots n (%) | 5 (2.1) | 0 (0) | 5 (1.0) | 3 (1.2) | 2 (0.8) | 5 (1.0) |
For first premolars, Chi-square, Fisher’s Exact tests; for gender p > 0.05; for side p > 0.05
For second premolars, Chi-square, Fisher’s Exact tests; for gender p > 0.05; for side p > 0.05