Fig. 3. Ultrasonography image of the mentalis muscle. (A) The probe was applied horizontally at the Pg, perpendicular to the skin surface. (B) The hypoechoic mentalis is observed directly above the periosteum. Pg, pogonion; PL, 0.5 cm left to Pg; PR, 0.5 cm right to Pg.

Anat Cell Biol 2023;56:293~298 https://doi.org/10.5115/acb.22.266

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