Cephalometric landmarks: S: sella; N: nasion; Or: orbitale; Po: porion; A point; B point; Gn: gnathion; Me: menton; Go: gonion. The following measurements: (1) blue color: gonial angle (lines tangent to the posterior border of the ramus and Go-Me plane), (2) red color: SN-GoGn angle (angle formed by lines S-N and Go-Gn), (3) green color: Y-axis angle (angle between S-Gn and Or-Po plane), and (4) Wits appraisal (mm).