From: Comprehensive evaluation of root and root canal morphology of mandibular second molars in a Saudi subpopulation evaluated by cone-beam computed tomography
Variant
1
3
4
5
8
9
10
Male
29 (9.5)
100 (32.9)
4 (1.3)
5 (1.6)
0 (0.0)
1 (0.3)
Female
39 (12.8)
111 (36.5)
2 (0.7)
Total
68 (22.4)
211 (69.4)
6 (2.0)
9 (3)