Fig. 1. Cephalometric landmarks used in the study. N, nasion; Or, orbitale; S, sella; Co, condylion; Po, porion, PNS, posterior nasal spine; ANS, anterior nasal spine; A, point A; UIA, upper incisor apex; UIB, upper incisor border; LIB, lower incisor border; LIA, lower incisor apex; B, point B; Pog, pogonion; Gn, gnathion; Me, menton; Go, gonion.
