title: A comparison of cephalometric analyses for assessing sagittal jaw relationship.
abstract: OBJECTIVE
  To compare the seven methods of cephalometric analysis for assessing sagittal jaw relationship and to determine the level of agreement between them.
  
  
  METHODS
  Cross-sectional, analytical study.
  
  
  METHODS
  Dental Section, the Aga Khan University Hospital, Karachi, from January to December 2004.
  
  
  METHODS
  Seven methods, describing anteroposterior jaw relationships (A-B plane, ANB, Wits, AXB, AF-BF, FABA and Beta angle) were measured on the lateral cephalographs of 85 patients. Correlation analysis, using Cramer's V-test, was performed to determine the possible agreement between the pair of analyses.
  
  
  RESULTS
  The mean age of the sample, comprising 35 males and 50 females was 15 years and 3 months. Statistically significant relationships were found among seven sagittal parameters with p-value < 0.001. Very strong correlation was found between AXB and AF-BF distance (r=0.924); and weak correlation between ANB and Beta angle (r=0.377). Wits appraisal showed the greatest coefficient of variability.
  
  
  CONCLUSIONS
  Despite varying strengths of association, statistically significant correlations were found among seven methods for assessing sagittal jaw relationship. FABA and A-B plane may be used to predict the skeletal class in addition to the established ANB angle.
authors.affiliation: Department of Orthodontics, Section of Dentistry, The Aga Khan University Hospital, Karachi. gul.erum@aku.edu
authors.lastname: Gul-e-Erum
authors.forename: Mubassar
authors.initials: M
authors.lastname: Fida
mesh_terms: D000293:Adolescent; D000328:Adult; D000886:Anthropometry; D002508:Cephalometry / Q000295:instrumentation / Q000379:methods*; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007568:Jaw / Q000033:anatomy & histology*; D008297:Male; D008310:Malocclusion / Q000473:pathology*; D010865:Pilot Projects; D055815:Young Adult