Three-dimensional volumetric evaluation of the different mandibular segments using CBCT in patients affected by juvenile idiopathic arthritis: a cross-sectional study

Progress in Orthodontics

Paolo Cressoni¹  Cinzia Maspero¹  Andrea Abate¹  Davide Cavagnetto¹  Alberto Caprioglio¹ 

[1] Department of Biomedical Surgical and Dental Sciences, University of Milan, 20142, Milan, Italy;Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, 20142, Milan, Italy;

关键词: Juvenile idiopathic arthritis;    Temporomandibular joint;    Cone-beam computed tomography;    Facial asymmetry;    Mandibular condyle;   

DOI  :  10.1186/s40510-021-00380-6

来源: Springer

【 摘 要 】

BackgroundThere is currently no information on how different mandibular segments are affected by juvenile idiopathic arthritis. The aim of this paper is to assess volumetric differences of different mandibular segments in subjects with unilateral and bilateral JIA and to compare them with non-JIA control volumes.Materials and methodsForty subjects with unilateral TMJ involvement and 48 with bilateral TMJ involvement were selected for the case group and 45 subjects with no known rheumatic comorbidities for the control group. The mandible of each subject was divided according to a validated method into different paired volumes (hemimandible, condyle, ramus and hemibody).ResultsThe ANOVA test revealed a statistically significant difference in all the groups for condylar and ramus volumes, and the pairwise comparison evidenced a statistically significant higher condylar and ramus volume in the control group (1444.47 mm3; 5715.44 mm3) than in the affected side in the unilateral JIA group (929.46 mm3; 4776.31 mm3) and the bilateral JIA group (1068.54 mm3; 5715.44 mm3). Moreover, there was also a higher condylar volume in the unaffected side in the unilateral JIA group (1419.39 mm3; 5566.24 mm3) than in the bilateral JIA group and the affected side in the unilateral JIA group.ConclusionsThe affected side of unilateral JIA patients showed statistically significant lower volumes in the hemimandible, in the condyle and in the ramus. The largest total mandibular volume was observed in the control group, followed by the unilateral JIA group and, lastly, by the bilateral JIA group.

【 授权许可】

CC BY