Table 1. | Percentage of occurrence of the bifid mandibular canal depending on radiological method of examination |
| Study | Radiological examination method |
N | Bifid MC |
|---|---|---|---|
| Nortje et al. (1977) | PR | 3612 | 0.9 |
| Grover and Lorton (1983) | PR | 5000 | 0.08 |
| Langlais et al. (1985) | PR | 6000 | 0.95 |
| Sanchis et al. (2003) | PR | 2012 | 0.35 |
| Naitoh et al. (2009) | CBCT | 212 | 65 |
MC = mandibular canal; PR = panoramic radiographs; CBCT = cone beam computed tomography. |