Cutaneous Sensory Branch of the Mylohyoid Nerve

초록

The study is aimed at the anatomical detail of the cutaneous sensory branch of the mylohyoid nerve(MHN) which is distributed to the chin as it relates submental surgery. Dissection was done on the both sides (16) of 8 cadavers fixed in formaldehyde solution. A distance from gonion of the cutaneous sensory branch werer measured. The cutaneous sensory nerve was 27.0 ± 8.6mm long and numbered 2.3 (14.4%) out of 16 specimens. The area distributed by most branches (78%) was a rhombus having all four sides equal (15 mm), extending to the mental prominence and submentum. The divergent angle of the two facing sides of the bilateral rhombi was 60 degrees. Informed surgical manipulation of the mental area may avoid unnecessary damage to sensory nerve.