Classification of bifid mandibular canals in the Syrian population using panoramic radiographs.

The objective of this study was to classify the different routes of the bifid mandibular canals (BMCs) on 2400 panoramic radiographs in a Syrian population. BMCs were identified, drawn and classified according to the classification of Langlais et al. BMCs were found in 41 cases (0.98%). A total of 15 canals (36.6%) were classified as Class I, 6 canals (14.6%) as Class II, 8 canals as Class III (19.5%) and 12 canals (29.3%) as Class IV. There was no statistically significant association between BMC class and sex or affected jaw side prevalence. The clinical implications of BMC classes are discussed and an algorithm is suggested as a clinical guide for clinicians.