الفهرس 
REVIEW OF LITERATUREOnly 14 pages are availabe for public view
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Abstract
The present study aimed to evaluate mandibular lesions by the use of Cone Beam Computed tomography (CBCT). Ten patients having different mandibular lesions were selected from the Outpatient Clinic of the Oral and Maxillofacial Surgery Department, Faculty of dentistry, Alexandria University.
The age ranged between 18-56 years, seven patients were males (70%) and three patients were females (30%).
All the cases were examined both clinically and radiographically. Preoperative orthopantogramic view accompanied by cone beam computed tomography (CBCT) were performed for each case, radiographic findings were correlated to the operative data and histopathological data to evaluate the credibility of the imaging technique.
In our series of patients, six cases were non-neoplastic lesions, four cases were benign tumors, and most of the lesions (90%) were more frequently in the posterior region. One lesion was large and occupied more than one region.
Non-neoplastic lesions were presented with intraoral swelling, pain in five cases and asymmetry in three cases, neoplastic lesions were presented with swelling, discomfort, asymmetry, pain in two cases and paresthesia in two cases.
Detailed radiographic analysis of the cases revealed difference between the conventional films and computed tomography (CBCT), CBCT scans possessed no magnification errors caused by geometric distortions; such errors were common in conventional panoramic x-ray.
CBCT reformatted images avoided the superimposition of structures and therefore were more accurate than conventional orthopantogram as a morphometric tool, the advantages of CBCT also included rapid acquisition of a volumetric data set in short period of time and the reconstruction of images at any plane with low radiation exposure.