Evaluation of Cbct Findings of Benign and Malignant Intrabony Lesions in The Maxillofacial Areas Download PDF

Introduction and Objective: The objective of this study was to use cone beam computed tomography (CBCT) to help for more accurately diagnose of maxillofacial lesions in order to achieve CBCT views of each of these lesions. Methods: Using CASE SERIES method in this project, CBCT images obtained from 87 patients with maxillofacial bone lesions, referred to private center of maxillofacial radiology and Radiology Department of Dental Faculty of Mashhad, were examined. The information related to the imaging in each patient in the checklist included location of the lesion, the internal structure, and the criteria related to impact on the surrounding buildings. Then, based on the results of biopsy, lesions were divided into 6 groups including cysts, benign tumors, malignant tumors, tumor-like lesions, systemic diseases and miscellaneous group, and their findings were described based on frequency distribution tables. Results: According to pathologic findings, odontogenic keratocyst was the most common lesion among all lesions. Cysts, malignant tumors, and Stefanie cysts (miscellaneous group) were more prevalent in males and malignant tumors and benign tumors were common in females. The most common involved site in the cysts was maxilla, especially in the anterior, followed by posterior mandible. However, in other groups, the mandible, especially the posterior, was the most common site involved. The internal view of most cysts and view of all malignant tumors were radiolucent. Benign tumors were seen as opaque, and the frequency of combined and radiolucent view was more in tumor-like lesions with the same percentage. Most cysts, benign tumors, and tumor-like tumors revealed a specific area with cortical margin, but in all of the malignant tumors, the invasive area was seen. Symptoms such as root resorption, dental displacement of surrounding buildings, and cortical swelling were more common in tumor-like tumors. The tendency to damage the cortex and the cortical area of the surrounding buildings was higher in malign tumors. Benign tumors were also associated with a higher proportion of dental displacement. Conclusion: The results of this study showed that in assessing bone lesions in the maxillofacial area in order to determine a bone lesion in the early stages, its exact area in the bone, studying the expansion of the lesion to adjacent buildings, delicate calcifications within the lesion and Buccolingual swelling, it is necessary to use CBCT.