The distance from the points of the frontotemporal branch of the facial nerve entering the frontal muscle to the (d) line [passing the lateral orbital rim and root of the helix of the ear] of the first frontal branch was 28.01 ± 3.75 mm and third frontal branch was 33.40 ± 3.62 mm; to the (d2) line [passing the lateral orbital rim and tragation on the outer ear] of the first frontal branch was 31.83 ± 3.48 mm and the third frontal branch was 37.75 ± 3.26 mm.