Rodriguez-Cardenas, Y.A.Arriola-Guillen, L.E.Flores-Mir, C.6/22/20222022-09-306/22/20222022-09-302014https://doi.org/10.1590/2176-9451.19.6.046-053.oarObjective: 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. © 2014 Dental Press Journal of Orthodontics.application/pdfenginfo:eu-repo/semantics/closedAccessDentistryinfo:eu-repo/semantics/article10.1590/2176-9451.19.6.046-053.oarhttp://purl.org/pe-repo/ocde/ford#3.02.14