Fig. 1

Relevant skeletal (a), dental (b) and soft-tissue (c) cephalometric parameters evaluated. 1 = angle Nasion-Sella-Line (NSL)– Nasal Line (NL), 2 = Gonion angle, I = angle lower incisivus (UK1)– mandibular line (ML), II = angle upper inicivus (OK1)– line between Nasion and point A (NA), III = interincisal angle, a = distance Labrale inferius (Li)– Aesthetic Line (EL)