Table 3 Root anatomy and root canal morphology of maxillary first and second molars according to gender and tooth side
|  | Maxillary First Molar (n = 344) | Maxillary Second Molar (n = 354) | ||||||
|---|---|---|---|---|---|---|---|---|
Second Mesiobuccal Canal | Second Palatal Canal | Second Mesiobuccal Canal | Second Palatal Canal | |||||
Present | Absent | Present | Absent | Present | Absent | Present | Absent | |
Left | 62 (36.0%) | 110 (64.0%) | 1 (0.6%) | 171 (99.4%) | 16 (9.0%) | 161 (91.0%) | 1 (0.6%) | 176 (99.4%) |
Male | 28 (16.3%) | 42 (24.4%) | – | 70 (40.7%) | 9 (5.1%) | 64 (36.2%) | – | 73 (41.2%) |
Female | 34 (19.8%) | 68 (39.5%) | 1 (0.6%) | 101 (58.7%) | 7 (4.0%) | 97 (54.8%) | 1 (0.6%) | 103 (58.2%) |
Right | 63 (36.6%) | 109 (63.4%) | 2 (1.2%) | 170 (98.8%) | 14 (7.9%) | 163 (92.1%) | 1 (0.6%) | 176 (99.4%) |
Male | 30 (17.4%) | 42 (24.4%) | 1 (0.6%) | 71 (41.3%) | 11 (6.2%) | 65 (36.7%) | – | 76 (42.9%) |
Female | 33 (19.2%) | 67 (39.0%) | 1 (0.6%) | 99 (57.6%) | 3 (1.7%) | 98 (55.4%) | 1 (0.6%) | 100 (56.5%) |
Total | 125 (36.3%) | 219 (63.7%) | 3 (0.9%) | 341 (99.1%) | 30 (8.5%) | 324 (91.5%) | 2 (0.6%) | 352 (99.4%) |