Prevalence of condylar morphological changes in individuals with class II malocclusion

• Published in: Brazilian oral research Vol. 38; p. e060
• Main Authors: Oliveira, Daniela Fernandes Lobo Molica, Fernandes, Ellen Eduarda, Lopes, Sergio Lúcio Pereira de Castro, Rode, Sigmar de Mello, Oliveira, Wagner de, Ertty, Ertty, Cardoso, Mauricio de Almeida, Tien-Li, An, Meloti, Fernanda
• Format: Journal Article
• Language: English
• Published: Brazil Sociedade Brasileira de Pesquisa Odontológica - SBPqO 01-01-2024; Sociedade Brasileira de Pesquisa Odontológica
• Subjects: Adult; Cone-Beam Computed Tomography; Cross-Sectional Studies; DENTISTRY, ORAL SURGERY & MEDICINE; Female; Humans; Male; Malocclusion, Angle Class II - diagnostic imaging; Malocclusion, Angle Class II - epidemiology; Malocclusion, Angle Class II - pathology; Mandibular Condyle; Mandibular Condyle - diagnostic imaging; Mandibular Condyle - pathology; Middle Aged; Original Research/Temporomandibular Joint Dysfunction; Osteoarthritis; Prevalence; Reference Values; Retrospective Studies; Temporomandibular Joint - diagnostic imaging; Temporomandibular Joint - pathology; Osteoarthritis; Mandibular Condyle; Cone-Beam Computed Tomography
• ISSN: 1806-8324; 1807-3107; 1807-3107
• DOI: 10.1590/1807-3107bor-2024.vol38.0060

This observational, cross-sectional study with retrospective collection was aimed to evaluate the prevalence of morphological changes in mandibular condyles in individuals with class II malocclusion, classified according to different vertical growth patterns (brachyfacial, mesofacial, and dolichofacial), through cone beam computed tomography (CBCT). Seventy CBCT images (140 mandibular condyles) were selected from individuals without orthodontic treatment, of both sexes, aged between 25 and 50 years. No statistically significant differences were found between facial patterns; however, there was a higher relative prevalence of bone changes in dolichofacial individuals with flattening (62%), sclerosis (44%), and subchondral bone cyst (20%). Erosion and osteophytes prevailed in mesofacial (39%), and brachyfacial individuals (32%), respectively. Thus, there was no statistically significant difference in the prevalence of degenerative changes between the vertical skeletal patterns. Flattening was the most prevalent change, whereas subchondral bone cyst was the least prevalent among the three groups studied. The observational design of this study makes it possible to analyze image banks to verify the correlation of morphological changes in the temporomandibular joint in different facial patterns in patients with class II malocclusion. A limitation of the study is that clinical characteristics were not evaluated.