Table 5. Distribution of 1st and 2nd maxillary molars with fused roots among both genders according to number of roots, number of canals, and canal configuration.
| 1st molar (N= 22) | 2nd molar (N= 53) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| M | F | Total | P | M | F | Total | P | ||
| Number of roots | |||||||||
| 1 root | 5 (33.3) | 1 (14.3) | 6 (27.3) | 0.616 | 1 (4.5) | 6 (19.4) | 7 (13.2) | 0.218 | |
| 2 roots | 10 (66.7) | 6 (85.7) | 16 (72.7) | 21 (95.5) | 25 (80.6) | 46 (86.8) | |||
| Total | 15 (68.2) | 7 (31.8) | 22 (100.0) | 22 (41.5) | 31 (58.5) | 53 (100.0) | |||
| Number of canals | |||||||||
| 3 canals | 5 (33.3) | 2 (28.6) | 7 (31.8) | 1.000 | 18 (81.8) | 20 (64.5) | 38 (71.7) | 0.223 | |
| 4 canals | 10 (66.7) | 5 (71.4) | 15 (68.2) | 4 (18.2) | 11 (35.5) | 15 (28.3) | |||
| Total | 15 (68.2) | 7 (31.8) | 22 (100.0) | 22 (41.5) | 31 (58.5) | 53 (100.0) | |||
| MB. Vertucci types | |||||||||
| Type I | 5 (33.3) | 2 (28.6) | 7 (31.8) | 0.273 | 18 (81.8) | 20 (64.5) | 38 (71.7) | 0.452 | |
| Type II | 5 (33.3) | 5 (71.4) | 10 (45.5) | 2 (9.1) | 3 (9.7) | 5 (9.4) | |||
| Type IV | 4 (26.7) | 0 (0.0) | 4 (18.2) | 2 (9.1) | 7 (22.6) | 9 (17.0) | |||
| Type V | 1 (6.7) | 0 (0.0) | 1 (4.5) | 0 (0.0) | 1 (3.2) | 1 (1.9) | |||
| Total | 15 (68.2) | 7 (31.8) | 22 (100.0) | 22 (41.5) | 31 (58.5) | 53 (100.0) | |||
| Only mesiobuccal roots were included in the analysis, other roots had Vertucci type I | |||||||||