An anatomic study of depressor anguli oris muscle and the mentalis muscle in the lower face

Hur,  Mi-Sun; Lee,  Kyu-Seok; Kim,  Hee-Jin

J Korean Dent Assoc > Volume 50(10); 2012 > Article

The Journal of The Korean Dental Association 2012;50(10):620-623.
Published online October 31, 2012.

임상가를 위한 특집 2 - 아래얼굴부위 근육의 해부학

허미선¹, 이규석², 김희진³

^¹관동대학교 의과대학 해부학교실
^²관동대학교 의과대학 해부학교실
^³연세대학교 치과대학 구강생물학교실

An anatomic study of depressor anguli oris muscle and the mentalis muscle in the lower face

Mi-Sun Hur¹, Kyu-Seok Lee², Hee-Jin Kim³

¹Department of Anatomy, Kwandong University College of Medicine
²Department of Anatomy, Kwandong University College of Medicine
³Division in Anatomy and Developmental Biology, Department of Oral Biology, Yonsei University College of Dentistry

Abstract

The use of botulinum toxin type A in the lower face has increasingly popular. And treatment of the depressor anguli oris muscle(DAO) and the mentalis muscle(MT), particularly in combination with filler substances, produces a remarkable improvement in the lower aged face. The aim of this study was to demonstrate the topographical anatomy of the DAO, MT, and their related structures, thereby providing critical information for determining the safest and most effective site for BTX-A injections. The most effective injection sites of DAO and MT were suggested based on the new anatomical knowledge of the lower face.

Key Words: depressor anguli oris muscle;mentalis muscle;botulinum toxin type A;