From: Vertucci’s root canal configuration of 11,376 mandibular anteriors and its relationship with distolingual roots in mandibular first molars in a Cantonese population: a cone-beam computed tomography study
Number of roots
Number of specimens n(%)
33
32
31
41
42
43
1
1886
(99.47%)
1896
(100.00%)
1892
(99.78%)
2
10(0.52%)
0(0.00%)
4(0.21%)