Fig. 1. A, Skeletal landmarks and cranial reference planes. B, Mandibular rolling and yawing based on the mandibular reference planes.
FH, Frankfort horizontal; Cg, crista galli; Or, orbitale; Po, porion; Go, gonion; MF, mental foramen; PM, protuberance menti; Me, menton; MFmid, midpoint of the bilateral MF; NDv, nondeviated side; Dv, deviated side; Mn, mandibular; Rt, right; Lt, left; Op, opisthion.

© Korean J Orthod