All patients were treated with anterior segmental osteotomy surgery. Measurements of the pre-surgical lateral cephalometric film showed that the subjects had maxilla protrudes in relation to the cranial plane (FH / NA (): 93.5 ± 4.1) while mandible was positioned backwards and downwards (SN-GoGn (): 36.4 ± 6.6; SL (mm): 38.4 ± 7.3), skeletal class II malocclusion (ANB (): 5.7 ± 3.2), a convex profile (N'SnPog' (): 161.2 ± 6.1), protruding upper lip-lower lip (Li-E line (mm): 5.5 ± 2.6; Ls-E line (mm): 1.8 ± 2.2) with a decreased inter-incisor angle (IIA (): 110.1 ± 10.9). The maxillary and mandibular incisors tended to be buccally inclined and protruded (I / MxP (): 132.8 ± 7.6; 1u-NA (mm): 7.4 ± 2.7; IMPA (): 101.1 ± 7.9; 1l-NB (mm): 10.3 ± 2.3).