Table 2 The frequency of root canal configuration according to gender

Vertucci classification

 I

351 (67.8%)

436 (73.2%)

353 (68.1%)

427 (71.6%)

473 (91.3%)

499 (83.7%)

 II

4 (0.8%)

4 (0.7%)

2 (0.4%)

5 (0.8%)

5 (1%)

17 (2.9%)

 III

152 (29.3%)

148 (24.8%)

156 (30.1%)

154 (25.8%)

30 (5.8%)

47 (7.9%)

 IV

0 (0%)

0 (0%)

1 (0.2%)

2 (0.3%)

8 (1.5%)

26 (4.4%)

 V

3 (0.6%)

0 (0%)

2 (0.4%)

1 (0.2%)

2 (0.4%)

3 (0.5%)

 NC

8 (1.5%)

8 (1.3%)

4 (0.8%)

7 (1.2%)

0 (0%)

4 (0.7%)

 p-value

0.147¹

0.498¹

0.002¹

Ahmed classification

 ¹MI¹⁻¹

351 (67.8%)

436 (73.2%)

353 (68.1%)

426 (71.5%)

473 (91.3%)

499 (83.7%)

 ¹MI^1–2

3 (0.6%)

0 (0%)

2 (0.4%)

1 (0.2%)

2 (0.4%)

2 (0.3%)

 ¹MI^1–2−1

152 (29.3%)

148 (24.8%)

156 (30.1%)

155 (26%)

30 (5.8%)

47 (7.9%)

 ¹MI²⁻¹

4 (0.8%)

4 (0.7%)

2 (0.4%)

5 (0.8%)

5 (1%)

17 (2.9%)

 ¹MI^{2−1−2−1}

8 (1.5%)

8 (1.3%)

4 (0.8%)

7 (1.2%)

0 (0%)

4 (0.7%)

 ²MI

0 (0%)

0 (0%)

1 (0.2%)

2 (0.3%)

8 (1.5%)

27 (4.5%)

 p-value

0.147¹

0.525¹

0.001¹