title: Cone-beam tomography assessment of condylar position discrepancy between centric relation and maximal intercuspation.
abstract: The magnitude of occasional discrepancies between the centric relation and maximal intercuspation positions remains a controversial subject. This study quantitatively evaluated the possible discrepancies in the condyle/mandibular fossa relationship between these positions using cone-beam computed tomography. Twenty young and asymptomatic volunteers were distributed equally into normal occlusion and Angle Class I, II and III malocclusion groups. They were submitted to one tomographic scan in maximal intercuspation and one in centric relation. Measurements were performed on lateral and frontal cuts of the patients' temporomandibular joints, and the data collected were compared using Student's t test at a significance level of 5%. The results showed that there were no statistically significant differences between the centric relation and maximal intercuspation positions in young and asymptomatic patients with practically intact dentitions using cone-beam computed tomography.
authors.affiliation: Department of Occlusion, Fixed Prosthodontics and Dental Materials, School of Dentistry, Federal University of Uberlândia, Uberlândia, MG, Brazil.
authors.forename: João César Guimarães
authors.initials: JC
authors.lastname: Henriques
authors.forename: Alfredo Júlio
authors.initials: AJ
authors.lastname: Fernandes Neto
authors.forename: Guilherme de Araújo
authors.initials: Gde A
authors.lastname: Almeida
authors.forename: Naila Aparecida de Godoi
authors.initials: NA
authors.lastname: Machado
authors.forename: Everton Ribeiro
authors.initials: ER
authors.lastname: Lelis
mesh_terms: D000293:Adolescent; D000328:Adult; D016302:Centric Relation; D054893:Cone-Beam Computed Tomography / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000503:physiopathology; D008335:Mandibular Condyle / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D009929:Organ Size; D012016:Reference Values; D015203:Reproducibility of Results; D013704:Temporomandibular Joint; D055815:Young Adult