title: New three-dimensional cephalometric analyses among adults with a skeletal Class I pattern and normal occlusion.
abstract: OBJECTIVE
  The purpose of this study was to assess new three-dimensional (3D) cephalometric variables, and to evaluate the relationships among skeletal and dentoalveolar variables through 3D cephalometric analysis.
  
  
  METHODS
  Cone-beam computed tomography (CBCT) scans were acquired from 38 young adults (18 men and 20 women; 22.6 ± 3.2 years) with normal occlusion. Thirty-five landmarks were digitized on the 3D-rendered views. Several measurements were obtained for selected landmarks. Correlations among different variables were calculated by means of Pearson's correlation coefficient values.
  
  
  RESULTS
  The body of the mandible had a longer curve length in men (102.3 ± 4.4 mm) than in women (94.5 ± 4.7 mm) (p < 0.001), but there was no significant difference in the maxillary basal curve length. Men had significantly larger facial dimensions, whereas women had a larger gonial angle (117.0 ± 4.0 vs. 113.8 ± 3.3; p < 0.001). Strong-to-moderate correlation values were found among the vertical and transverse variables (r = 0.71 to 0.51).
  
  
  CONCLUSIONS
  The normative values of new 3D cephalometric parameters, including the maxillary and mandibular curve length, were obtained. Strong-to-moderate correlation values were found among several vertical and transverse variables through 3D cephalometric analysis. This method of cephalometric analyses can be useful in diagnosis and treatment planning for patients with dentofacial deformities.
authors.affiliation: Graduate School, The Catholic University of Korea, Seoul, Korea.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Bayome
authors.forename: Jae Hyun
authors.initials: JH
authors.lastname: Park
authors.forename: Yoon-Ah
authors.initials: YA
authors.lastname: Kook
keywords: Anatomy; Ethnic norms; Three-dimensional cephalometrics; Three-dimensional diagnosis and treatment planning