mandibular retraction


man·dib·u·lar re·trac·tion

a type of facial anomaly in which the gnathion lies posterior to the orbital plane.

man·dib·u·lar re·trac·tion

(man-dibyū-lăr rĕ-trakshŭn) Facial anomaly in which the gnathion lies posterior to the orbital plane.