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Farronato G., Garagiola U., Carletti V., Cressoni P., Mercatali L., Farronato D.
1 Department of Orthodontics and Gnatology, School of Dentistry, Dental Hygiene School, University of Milan, Milan, Italy
2 Department of Orthodonticsand Oral Surgery, Dental and Stomatologic Clinic, School of Dentistry, University of Milan
Aim. The aim of this study was to show the importance of Cone Beam Computerized Tomography (CBCT) to volumetrically quantify temporomandibular joint (TMJ) damage in patients with juvenile idiopathic arthritis (JIA), measuring condylar and mandibular real volumes.
Methods. Thirty-four children with temporomandibular involvement by JIA were observed by CBCT. Four were excluded because of several imaging noises. The mandible was isolated from others craniofacial structures; the whole mandibular volume and its components’ volumes (condyle, ramus, emibody, emisymphysis on right side and on left side) has been calculated by a 3D volume rendering technique.
Results. The results show a highly significant statistical difference between affected side volumetric values versus normal side volumetric values, above all on condyle region (P<0.01), while there was no statistical difference between right versus left side.
Conclusion. The CBCT represents a huge improvement in understanding of the condyle and mandibular morphological changes, even in the early stages of the JIA. In children the JIA can lead to TMJ damage with facial development and growth alterations.
language: English, Italian