title: No differences in morphological characteristics between hyperplastic condyle and class III condyle.
abstract: The aim of this research was to compare the condylar morphology of patients with unilateral condylar hyperplasia (UCH) and patients with a class III skeletal relationship using cone beam computed tomography (CBCT). A prospective study was conducted on patients with facial asymmetry attending the division of oral and maxillofacial surgery of the study university in Chile. Fifteen patients with UCH and 15 with a class III skeletal relationship were selected. Linear measurements of the condylar processes were obtained at a scale of 1:1 using the software Ez3D Viewer Plus. Analysis of variance (ANOVA) and the paired t-test were used, considering P<0.05. Patients with UCH presented statistical differences between the hyperplastic condyle and non-hyperplastic condyle for anteroposterior and mediolateral diameters, condylar neck length, and ramus height. Patients with a class III skeletal relationship showed no differences between the right and left sides; the morphology of their condyles was similar to the condyles with hyperplasia and presented statistical differences when compared with the non-hyperplastic condyles (one-way ANOVA, P<0.05). The condylar morphology of UCH patients could be related to the development of a class III skeletal relationship. These findings provide an insight into the possibility of some class III patients presenting bilateral condylar hyperplasia.
authors.affiliation: Division of Oral and Maxillofacial Surgery, State University of Campinas, São Paulo, Brazil.
authors.forename: D R
authors.initials: DR
authors.lastname: Goulart
authors.affiliation: Division of Oral and Maxillofacial Surgery and CEMYQ, Universidad de La Frontera, Temuco, Chile; Master in Dental Sciences Program, Universidad de La Frontera, Temuco, Chile.
authors.forename: P
authors.initials: P
authors.lastname: Muñoz
authors.affiliation: Division of Oral and Maxillofacial Surgery, State University of Campinas, São Paulo, Brazil; Division of Oral and Maxillofacial Surgery and CEMYQ, Universidad de La Frontera, Temuco, Chile; Master in Dental Sciences Program, Universidad de La Frontera, Temuco, Chile; Center for Biomedical Research, Universidad Autónoma de Chile, Temuco, Chile. Electronic address: sergio.olate@ufrontera.cl.
authors.forename: S
authors.initials: S
authors.lastname: Olate
authors.affiliation: Division of Oral and Maxillofacial Surgery, State University of Campinas, São Paulo, Brazil.
authors.forename: M
authors.initials: M
authors.lastname: de Moraes
authors.affiliation: Division of Oral and Maxillofacial Surgery, Universidad de Chile, Santiago, Chile.
authors.forename: R
authors.initials: R
authors.lastname: Fariña
mesh_terms: D000293:Adolescent; D000328:Adult; D054893:Cone-Beam Computed Tomography; D005146:Facial Asymmetry / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D006965:Hyperplasia / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D008313:Malocclusion, Angle Class III / Q000000981:diagnostic imaging* / Q000473:pathology; D008335:Mandibular Condyle / Q000000981:diagnostic imaging* / Q000473:pathology; D011446:Prospective Studies; D011857:Radiographic Image Interpretation, Computer-Assisted
keywords: condylar hyperplasia; facial asymmetry; mandibular condyle