title: Björk-Jarabak cephalometric analysis on CBCT synthesized cephalograms with different dentofacial sagittal skeletal patterns.
abstract: OBJECTIVE
  The objective of this study was to evaluate the Björk and Jabarak cephalometric analysis generated from cone-beam computed tomography (CBCT) synthesized lateral cephalograms in adults with different sagittal skeletal patterns.
  
  
  METHODS
  The sample consisted of 46 CBCT synthesized cephalograms obtained from patients between 16 and 40 years old. A Björk and Jarabak cephalometric analysis among different sagittal skeletal classes was performed. Analysis of variance (ANOVA), multiple range test of Tukey, Kruskal-Wallis test, and independent t-test were used as appropriate.
  
  
  RESULTS
  In comparison to the standard values: Skeletal Class III had increased gonial and superior gonial angles (P < 0.001). This trend was also evident when sex was considered. For Class I males, the sella angle was decreased (P = 0.041), articular angle increased (P = 0.027) and gonial angle decreased (P = 0.002); whereas for Class III males, the gonial angle was increased (P = 0.012). For Class I females, the articular angle was increased (P = 0.029) and the gonial angle decreased (P = 0.004). Björk's sum and Björk and Jabarak polygon sum showed no significant differences. The facial biotype presented in the three sagittal classes was mainly hypodivergent and neutral.
  
  
  CONCLUSIONS
  In this sample, skeletal Class III malocclusion was strongly differentiated from the other sagittal classes, specifically in the mandible, as calculated through Björk and Jarabak analysis.
authors: Universidad Peruana Cayetano Heredia.
authors: Yalil Augusto
authors: YA
authors: Rodriguez-Cardenas
authors: Department of Orthodontics, School of Dentistry, Universidad Científica del Sur-UCSUR and Universidad Nacional Mayor de San Marcos, Universidad Peruana Cayetano Heredia.
authors: Luis Ernesto
authors: LE
authors: Arriola-Guillen
authors: Department of Orthodontics, University of Alberta.
authors: Carlos
authors: C
authors: Flores-Mir
mesh_terms: D000293:Adolescent; D000328:Adult; D002508:Cephalometry / Q000379:methods*; D002680:Chin / Q000000981:diagnostic imaging; D054893:Cone-Beam Computed Tomography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000145:classification* / Q000000981:diagnostic imaging; D008311:Malocclusion, Angle Class I / Q000000981:diagnostic imaging; D008312:Malocclusion, Angle Class II / Q000000981:diagnostic imaging; D008313:Malocclusion, Angle Class III / Q000000981:diagnostic imaging; D008334:Mandible / Q000000981:diagnostic imaging; D008335:Mandibular Condyle / Q000000981:diagnostic imaging; D009295:Nasal Bone / Q000000981:diagnostic imaging; D012658:Sella Turcica / Q000000981:diagnostic imaging; D012737:Sex Factors; D055815:Young Adult
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