Other variants include a bifid canal with a branch (~41%): following the course of the main mandibular canal before re-joining it (forward or buccolingual type); terminating at the apex of a tooth, usually the molar teeth (dental type); opening as an accessory mental foramen.
Other types include a bifurcated canal with a supplementary passage (~41%): following the course of the main mandibular canal before rejoining it (forward or buccolingual type); terminating at the apex of a tooth, usually the molar teeth (dental type); opening as an accessory mental foramen.