Table 4.
Root anatomy and root canal morphology of mandibular teeth based on Vertucci’s classification
| Mandibular Teeth | Number of Roots | Root Type | Vertucci’s Classification | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Type I | Type II | Type III | Type IV | Type V | Type VI | Type VII | Type VIII | |||
| Central Incisor (n = 408) | 1 | – | 387 (94.9%) | – | 4 (1.0%) | – | 17 (4.2%) | – | – | – |
| Lateral Incisor (n = 400) | 1 | – | 351 (87.8%) | – | 15 (3.8%) | 1 (0.3%) | 33 (8.3%) | – | – | – |
| Canine (n = 411) |
1 (n = 406) |
– | 386 (95.1%) | 20 (4.9%) | – | – | – | – | – | – |
| 2 (n = 5) |
Buccal | 5 (100.0%) | – | – | – | – | – | – | – | |
| Palatal | 5 (100.0%) | – | – | – | – | – | – | – | ||
| First Premolar (n = 359) | 1 (n = 353) |
– | 292 (82.7%) | 1 (0.3%) | 5 (1.4%) | – | 55 (15.6%) | – | – | – |
| 2 (n = 6) |
Mesial | 6 (100.0%) | – | – | – | – | – | – | – | |
| Distal | 3 (50.0%) | – | – | 3 (50.0%) | – | – | – | – | ||
| Second Premolar (n = 399) | 1 | – | 397 (99.5%) | 1 (0.3%) | – | 1 (0.3%) | – | – | – | – |
| First Molar (n = 370) | 2 (n = 290) |
Mesial | 7 (2.4%) | 6 (2.1%) | – | 270 (93.1%) | – | – | – | 7 (2.4%) |
| Distal | 220 (75.9%) | 6 (2.1%) | – | 63 (21.7%) | 1 (0.3%) | – | – | – | ||
| 3 (n = 80) |
Mesial | 2 (2.5%) | – | – | 78 (97.5%) | – | – | – | – | |
| Distobuccal | 42 (52.5%) | – | 1 (1.3%) | – | – | – | – | – | ||
| Distolingual | 79 (98.8%) | – | – | – | 1 (1.3%) | – | – | – | ||
| Second Molar (n = 376) | 2 (n = 192) |
Mesial | 34 (17.7%) | 8 (4.2%) | – | 150 (78.1%) | – | – | – | – |
| Distal | 186 (96.9%) | – | – | 6 (3.1%) | – | – | – | – | ||
| 3 (n = 1) |
Mesial | – | – | – | 1 (100.0%) | – | – | – | – | |
| Distobuccal | 1 (100.0%) | – | – | – | – | – | – | – | ||
| Distolingual | 1 (100.0%) | – | – | – | – | – | – | – | ||
| C-shape | 183 (48.7%) | – | – | – | – | – | – | – | ||