Fig. 1From: Relationship of aging, skeletal muscle mass, and tooth loss with masseter muscle thicknessMasseter muscle thickness measurements. a Position of the probe during measurement. b Masseter muscle imaging with an ultrasonic diagnostic equipment. Upper edge of the tragus (B) Point under the nasal wing (C) Camper’s plane (D) Masseter muscle surface (E) Mandibular ramus (F) Masseter muscle thicknessBack to article page