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Table 6 Variants of root and canal system morphology according Zhang et al.

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)

4 (1.3)

1 (0.3)

Female

39 (12.8)

111 (36.5)

2 (0.7)

1 (0.3)

1 (0.3)

5 (1.6)

1 (0.3)

Total

68 (22.4)

211 (69.4)

6 (2.0)

6 (2.0)

1 (0.3)

9 (3)

2 (0.7)

  1. Chi-square, Fisher’s Exact tests; p > 0.05