A = A point, the deepest point on the anterior border of the maxilla; B = B point, the deepest point on the anterior border of the mandible; S = sella; N = nasion; NLA = naso-labial-angle; NSL = nasion-sella line; Dis-A-NSL = angular distance subspinale A point to the nasion-sella line; NSLP = nasion-sella line perpendicular; Dis-A-NSLP = angular distance subspinale A point to the nasion-sella line perpendicular; HOB = horizontal overjet; VOB = vertical overbite; E-plane = aesthetic plane; Dis-E-plane = angular distance from the aesthetic plane to the upper lip.