Table 4 Number of canal office in maxillary premolars
Number of roots | Gender | Tooth position | ||||
|---|---|---|---|---|---|---|
Male | Female | Total | Left side | Right side | Total | |
First premolars | Â | Â | Â | Â | Â | Â |
One-orifice n (%) | 13 (5.6) | 26 (9.7) | 39 (7.8) | 20 (8.0) | 19 (7.6) | 39 (7.8) |
Two-orifice n (%) | 211 (90.9) | 242 (90.3) | 453 (90.6) | 226 (90.4) | 227 (90.8) | 453 (90.6) |
Three-orifice n (%) | 8 (3.4) | 0 (0) | 8 (1.6) | 4 (1.6) | 4 (1.6) | 8 (1.6) |
Second premolars | Â | Â | Â | Â | Â | Â |
One-orifice n (%) | 147 (62.8) | 201 (75.6) | 348 (69.6) | 173 (69.2) | 175 (70.0) | 348 (69.6) |
Two-orifice n (%) | 82 (35.0) | 65 (24.4) | 147 (29.4) | 74 (29.6) | 73 (29.2) | 147 (29.4) |
Three-orifice n (%) | 5 (2.1) | 0 (0) | 5 (1.0) | 3 (1.2) | 2 (0.8) | 5 (1.0) |