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Number of root canals orifices
| Total number of root canals orifices per tooth | Total n (%) | |||||
|---|---|---|---|---|---|---|
| Two | Three | Four | Five | Six | ||
| Two-rooted molars n (%) | 18 (3.6) | 447 (89.4) | 17 (3.4) | 1 (0.2) | 1 (0.2)* | 484 (96.8) |
| Three-rooted molars n (%) | 0 | 0 | 16 (3.2) | 0 | 0 | 16 (3.2) |
| Total n (%) | 18 (3.6) | 447 (89.4) | 33 (6.6) | 1 (0.2) | 1 (0.2) | 500 (100) |
P value=0.001 (<0.05)
