Table 4 Number and percentages of root canals in each root of the mandibular molars.

36 (n = 78)

M

75 (96.2)

–

75 (100, 95.2–100)

–

D

78 (100)

62 (79.5, 68.5–87.9)

16 (20.5, 12.1–31.5)

–

MB

3 (3.8)

3 (100, 29.2–100)

–

–

ML

3 (3.8)

3 (100, 29.2–100)

–

–

37 (n = 81)

Single root

7 (8.6)

2 (28.6, 5.1–70.9)

4 (57.1, 18.4–90.1)

1 (14.3, 0.4–57.9)

M

70 (86.4)

2 (2.9, 0.4–10.0)

68 (97.1, 90.0–99.6)

–

D

74 (91.4)

71 (95.9, 88.7–99.1)

3 (4.1, 0.9–11.3)

–

MB

4 (4.9)

4 (100, 39.8–100)

–

–

ML

4 (4.9)

4 (100, 39.8–100)

–

–

46 (n = 81)

Single root

1 (1.2)

–

–

1 (100, 2.5–100)

M

78 (96.3)

–

78 (100, 95.4–100)

–

D

80 (98.8)

61 (76.2, 65.5–84.4)

19 (23.8, 15.6–34.5)

–

MB

2 (2.5)

2 (100, 15.8–100)

–

–

ML

2 (2.5)

2 (100, 15.8–100)

–

–

47 (n = 92)

Single root

10 (10.9)

2 (20, 2.5–55.6)

3 (60, 6.7–65.2)

5 (50, 18.7–81.3)

M

77 (83.7)

–

77 (100, 95.3–100)

–

D

79 (85.9)

78 (98.7, 93.2–99.9)

1 (1.3, 0.03–6.8)

–

MB

5 (5.4)

5 (100, 47.8–100)

–

–

DB

3 (3.3)

3 (100, 29.2–100)

–

–

ML

5 (5.4)

5 (100, 47.8–100)

–

–

DL

3 (3.3)

3 (100, 29.2–100)

–

–