title: Nasal profile changes with le fort I maxillary advancement surgery.
abstract: Introduction : The purpose of this study was to quantify anteroposterior facial soft tissue changes with respect to underlying skeletal movements after Le Fort I maxillary advancement surgery by using lateral cephalograms taken before and after the operation. Materials and Methods : The study group consisted of 20 patients (10 women, 10 men; mean age 23.4 ± 1.4 years) having a Class III skeletal deformity caused by a retrognathic maxilla. All patients were treated by Le Fort I maxillary advancement osteotomy. Lateral cephalograms were taken before and 1.6 ± 0.4 years after surgery. Results : The anteroposterior position of A-point and anteroposterior position of maxillary incisor were significantly protracted (-2.69 ± 3.34 and -2.68 ± 3.21, respectively; P < .01). The nasal anteroposterior and superoinferior positions (NASALAP and NASALSI, respectively) were significantly changed (-2.70 ± 6.81, P < .01, and -2.55 ± 5.80, P < .05, respectively) and nasal elevation and protraction were observed after Le Fort I maxillary advancement surgery. Conclusions : The changes in anteroposterior and superoinferior positions of A-point were correlated with the nasal superoinferior position (r = -0.71 , P < .05; r = 0.72, P < .05) after Le Fort I maxillary advancement surgery.
authors.forename: Gülnaz
authors.initials: G
authors.lastname: Marşan
authors.forename: Emre
authors.initials: E
authors.lastname: Hocaoğlu
authors.forename: Nil
authors.initials: N
authors.lastname: Cura
authors.forename: Ufuk
authors.initials: U
authors.lastname: Emekli
mesh_terms: D002508:Cephalometry; D005260:Female; D006801:Humans; D008297:Male; D008313:Malocclusion, Angle Class III / Q000000981:diagnostic imaging / Q000601:surgery*; D008437:Maxilla / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery*; D008445:Maxillofacial Development; D009666:Nose / Q000033:anatomy & histology*; D019340:Osteotomy, Le Fort; D016896:Treatment Outcome; D055815:Young Adult
keywords: Le Fort I osteotomy; maxillary advancement; soft tissue profile