Table 3 Statistical description of the physiological foramen diameter dimensions (mm) of root canals of first and second maxillary and mandibular molars in their respective root
1st MX | MB (S) | MB (2) | MB (3) | DB (S) | DB (2) | P (S) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | W | N | W | N | W | N | W | N | W | N | W | |||
Mean | 0.24 | 0.33 | 0.22 | 0.26 | 0.13 | 0.15 | 0.22 | 0.31 | 0.27 | 0.32 | 0.33 | 0.42 | ||
s.d. | 0.08 | 0.14 | 0.07 | 0.08 | 0.05 | 0.06 | 0.06 | 0.12 | 0.10 | 0.11 | 0.10 | 0.14 | ||
Max | 0.49 | 0.91 | 0.38 | 0.49 | 0.18 | 0.19 | 0.46 | 1.00 | 0.39 | 0.42 | 0.71 | 0.97 | ||
Min | 0.08 | 0.09 | 0.10 | 0.11 | 0.09 | 0.08 | 0.09 | 0.12 | 0.13 | 0.14 | 0.11 | 0.19 | ||
n | 109 | 134 | 9 | 177 | 4 | 179 | ||||||||
2nd MX | MB (S) | MB (2) | MB (3) | DB (S) | DB (2) | P (S) | P (2) | |||||||
N | W | N | W | N | W | N | W | N | W | N | W | N | W | |
Mean | 0.24 | 0.41 | 0.26 | 0.41 | 0.26 | 0.38 | 0.22 | 0.33 | 0.22 | 0.32 | 0.33 | 0.44 | 0.33 | 0.36 |
s.d. | 0.07 | 0.21 | 0.09 | 0.08 | 0.08 | 0.15 | 0.07 | 0.14 | 0.17 | 0.11 | 0.11 | 0.15 | 0.03 | 0.16 |
Max | 0.39 | 1.22 | 0.86 | 1.22 | 0.50 | 1.03 | 0.42 | 1.04 | 0.42 | 1.04 | 0.78 | 1.16 | 0.35 | 1.01 |
Min | 0.09 | 0.11 | 0.09 | 0.11 | 0.09 | 0.16 | 0.03 | 0.09 | 0.03 | 0.09 | 0.16 | 0.21 | 0.30 | 0.35 |
n | 67 | 106 | 9 | 117 | 6 | 119 | 8 | |||||||
1st MA | M (S) | M (2) | M (3–5) | D (S) | D (2) | D (3–4) | ||||||||
N | W | N | W | N | W | N | W | N | W | N | W | |||
Mean | 0.24 | 0.39 | 0.25 | 0.41 | 0.20 | 0.32 | 0.30 | 0.46 | 0.24 | 0.36 | 0.30 | 0.48 | ||
s.d. | 0.07 | 0.22 | 0.10 | 0.24 | 0.07 | 0.12 | 0.11 | 0.18 | 0.08 | 0.19 | 0.10 | 0.20 | ||
Max | 0.40 | 1.19 | 0.80 | 1.39 | 0.46 | 0.71 | 0.75 | 1.16 | 0.44 | 0.88 | 0.75 | 1.28 | ||
Min | 0.13 | 0.16 | 0.11 | 0.15 | 0.06 | 0.12 | 0.12 | 0.20 | 0.09 | 0.12 | 0.12 | 0.20 | ||
n | 26 | 146 | 114 | 76 | 128 | 51 | ||||||||
2nd MA | M (S) | M (2) | M (3–4) | D (S) | D (2) | D (3) | ||||||||
N | W | N | W | N | W | N | W | N | W | N | W | |||
Mean | 0.25 | 0.47 | 0.25 | 0.45 | 0.20 | 0.33 | 0.31 | 0.47 | 0.27 | 0.38 | 0.31 | 0.47 | ||
s.d. | 0.09 | 0.23 | 0.10 | 0.24 | 0.06 | 0.16 | 0.09 | 0.16 | 0.06 | 0.10 | 0.09 | 0.16 | ||
Max | 0.44 | 1.12 | 0.60 | 1.13 | 0.39 | 0.39 | 0.57 | 0.92 | 0.40 | 0.49 | 0.57 | 0.92 | ||
Min | 0.08 | 0.19 | 0.02 | 0.02 | 0.08 | 0.08 | 0.11 | 0.20 | 0.19 | 0.20 | 0.11 | 0.20 | ||
n | 50 | 132 | 7 | 82 | 102 | 3 |