Research Article
Anatomical Evaluation of Mandibular Molars in a Saudi Population: An In Vivo Cone-Beam Computed Tomography Study
Table 2
Comparison amongst right and left edges among mandibular 1st molars N (%).
| | | All teeth (N = 290) | 2-rooted teeth (N = 274) | 3-rooted teeth (N = 16) | | Right | Left | | Right | Left | | Right | Left | |
| | Number of canals | | 2 canals | 2 (1.3) | 0 (0.0) | 0.361 | 2 (1.4) | 0 (0.0) | 0.352 | — | — | 1.000 | | 3 canals | 95 (62.9) | 92 (66.2) | | 94 (65.7) | 91 (69.5) | | 1 (12.5) | 1 (12.5) | | | 4 canals | 54 (35.8) | 47 (33.8) | | 47 (32.9) | 40 (30.5) | | 7 (87.5) | 7 (87.5) | | | Total | 151 (52.1) | 139 (47.9) | | 143 (52.2) | 131 (47.8) | | 8 (50.0) | 8 (50.0) | |
| | M. root Vertucci types | | Type I | 3 (2.0) | 0 (0.0) | 0.312 | 2 (1.4) | 0 (0.0) | 0.581 | 1 (12.5) | 0 (0.0) | 0.448 | | Type II | 51 (33.8) | 54 (38.8) | | 49 (34.3) | 51 (38.9) | | 2 (25.0) | 3 (37.5) | | Type III | 1 (0.7) | 3 (2.2) | | 1 (0.7) | 2 (1.5) | | 0 (0.0) | 1 (12.5) | | Type IV | 91 (60.3) | 77 (55.4) | | 86 (60.1) | 74 (56.5) | | 5 (62.5) | 3 (37.5) | | Type V | 5 (3.3) | 5 (3.6) | | 5 (3.5) | 4 (3.1) | | 0 (0.0) | 1 (12.5) | | Total | 151 (52.1) | 139 (47.9) | | 143 (52.2) | 131 (47.8) | | 8 (50.0) | 8 (50.0) |
| | D. root Vertucci types | | Type I | 102 (67.5) | 98 (70.5) | 0.978 | 94 (65.7) | 90 (68.7) | 0.980 | 8 (100.0) | 8 (100.0) | NC | | Type II | 5 (3.3) | 4 (2.9) | | 5 (3.5) | 4 (3.1) | | — | — | | Type III | 28 (18.5) | 22 (15.8) | | 28 (19.6) | 22 (16.8) | | — | — | | Type IV | 1 (0.7) | 1 (0.7) | | 1 (0.7) | 1 (0.8) | | — | — | | Type V | 15 (9.9) | 14 (10.1) | | 15 (10.5) | 14 (10.7) | | — | — | | Total | 151 (52.1) | 139 (47.9) | | 143 (52.2) | 131 (47.8) | | 8 (50.0) | 8 (50.0) |
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