Assessment of Degenerative Bone Changes in TMJ Using Conebeam Computed Tomography
Journal Title: Scholars Journal of Applied Medical Sciences - Year 2018, Vol 6, Issue 12
Abstract
Abstract: Cone beam CT (CBCT) is a new technique for maxillofacial imaging. The aim of present study was to assess the degenerative bone changes of the condylar regarding gender and age using CBCT. A total of 100 patients who visited the dental hospital from May 2014 to March 2018 complaining of TMJ pains, TMJ sounds, or mouth opening limitation were evaluated. Conventional radiological evaluations (panoramic view and transcranial view) and CBCT examinations were performed. CBCT images of the patients were obtained using NewTom VGi scanner (QR srl; Verona, Italy) in standard resolution mode, exposure parameters include kVp=110, exposure time of 3.6 s and The primary reconstruction of the raw data was restricted to the TMJ region (approximately 4 cm superior to the mandibular fossa and 4 cm inferior, 4 cm anterior, and 3 cm posterior to the condylar neck) . Axial, Coronal and sagittal cross sections with 1mm thickness at an interval of 0.5mm were prepared. The reconstructed images were analyzed by three well-trained oral and maxillofacial radiologists. Right and left TMJs were examined separately, resulting in a total of 148 TMJs. Comparing the sagittal, coronal, and 3D images, we classified degenerative bony changes into five types: osteophytes, erosion, flattening, subchondral sclerosis, and pseudocysts. Flattening and osteophytosis were the most prevalent associations, with a 26% prevalence rate followed by flattening and erosions in 19% of patients. The prevalence of general degenerative changes significantly increased with age maximum number of degenerative changes was seen in 51 – 60 years age group. Considering the results obtained in the present study, the degenerative bone changes occurred more frequently among women and there was an increasing of alterations according the age. Flattening and osteophytosis were the most common degerative changes followed by flattening and erosions.
Authors and Affiliations
Nusrat Nazir Nazir, Bashir Ahmad Wani, Dr. Altaf Hussain Chalkoo Chalkoo, Dr. Prenika Sharma
Keywords
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