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Table 2 The number of canal offices for each gender and tooth location

From: Comprehensive evaluation of root and root canal morphology of mandibular second molars in a Saudi subpopulation evaluated by cone-beam computed tomography

Number of canal orifice

Gender

Tooth position

Male

Female

Total

Left side

Right side

Total

One-orifice n (%)

0 (0.0)

1 (0.3)

1 (0.3)

0 (0.0)

1 (0.3)

1 (0.3)

Two-orifice n (%)

33 (10.9)

44 (14.4)

77 (25.3)

40 (13.3)

37 (12.2)

77 (25.3)

Three-orifice n (%)

106 (34.9)

113 (37.2)

219 (72)

109 (35.9)

110 (36.2)

219 (72)

Four-orifice n (%)

4 (1.3)

2 (0.7)

6 (2)

1 (0.3)

5 (1.6)

6 (2.0)

Five-orifice n (%)

1 (0.3)

0 (0.0)

1 (0.3)

1 (0.3)

0 (0.0)

1 (0.3)

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