한국인 하악설골근신경고랑 뼈다리의 형태

Abstract

Authors obseved the prevalence and the morphology of the bony bridge of mylohyoid grooves in 385 sides of Korean mandibles Results were as followings 1 The incidence of the mylohyoid bridges was obserbed in 101% of 39 sides among the 385 sides of the Korean mandibles and the prevalence at the left and the right side was same 2 Mylohyoid bridges were classilfied into 3 groups Type Ia m which the discrete bony birdge slightly hpping at the lateral edge of the mylohyoid groove was m 69 2 % Type ib m which the bony bridge mcompletely fused was m 103% and Type n m which the complete bony bridge formed at one point or resembled a long tunnel was m 20 5 % of 39 mylohyoid bridge 3 In 38 4 % mylohyoid bridge located at the proximal portion of the mylohyoid groove m 25 7 % It located at the distal portion of the mylohyoid groove and m 359% It located extendedly from the proximal portion to the distal portion along the mylohyoid groove 4 The prevalence of Korean mylohyoid bridge was low and similar to that of the other ASian populations