title: Cephalometric Analysis of the Facial Skeletal Morphology of Female Patients Exhibiting Skeletal Class II Deformity with and without Temporomandibular Joint Osteoarthrosis.
abstract: OBJECTIVE
  This study evaluated the differences in the facial morphological characteristics of female patients exhibiting skeletal class II deformity with and without temporomandibular joint osteoarthrosis.
  
  
  METHODS
  Eighty-three female patients with skeletal class II deformity were included in this study; these patients were classified into three groups on the basis of the condylar features shown in cone-beam computed tomography scans: normal group, indeterminate for osteoarthrosis group, and osteoarthrosis group. The cephalometric differences among the three groups were evaluated through one-way ANOVA.
  
  
  RESULTS
  Of the 83 patients, 52.4% were diagnosed with osteoarthrosis, as indicated by the changes in the condylar osseous component. The cephalometric measurements that represented skeletal characteristics, including mandibular position relative to the cranial base, mandibular plane angle (MP-SN), posterior facial height (S-Go), and facial height ratio, were significantly different among the three groups (p < 0.05). The patients in the osteoarthrosis group yielded the smallest S-Go, the highest MP-SN, and the most retruded mandible.
  
  
  CONCLUSIONS
  Temporomandibular joint osteoarthrosis is commonly observed in female patients with skeletal class II deformity. The morphological characteristics of the facial skeleton in patients with bilateral condylar osteoarthrosis may be altered.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China.
authors.forename: Shuo
authors.initials: S
authors.lastname: Chen
authors.affiliation: Department of Oral & Maxillofacial Radiology, Peking University School and Hospital of Stomatology, Beijing, PR China.
authors.forename: Jie
authors.initials: J
authors.lastname: Lei
authors.affiliation: Department of Oral & Maxillofacial Radiology, Peking University School and Hospital of Stomatology, Beijing, PR China.
authors.forename: Kai-Yuan
authors.initials: KY
authors.lastname: Fu
authors.affiliation: Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China.
authors.forename: Xing
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, PR China.
authors.forename: Biao
authors.initials: B
authors.lastname: Yi
mesh_terms: D000293:Adolescent; D000328:Adult; D002508:Cephalometry; D005146:Facial Asymmetry / Q000473:pathology*; D005147:Facial Bones / Q000002:abnormalities / Q000473:pathology; D005260:Female; D006801:Humans; D010003:Osteoarthritis / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000473:pathology*