1- Shahid Sadoughi University of Medical Science 2- Shahid Sadoughi University of Medical Science , sajed7950@gmail.com
Abstract: (463 Views)
Background and Aim: Reconstruction of oral structures has become a great concern in the world community due to its aesthetic and health function. This study was conducted with the aim of evaluating the quantity and quality of bone in the ramus of the mandible, using CBCT for autogenous bone grafting. Materials and Methods:This descriptive cross-sectional study was conducted on 60 CBCT images belonging to patients referred to the Department of Oral, Maxillofacial Radiology, Yazd Faculty of Dentistry during 2022-2023. The ramus of the mandible was evaluated by measuring different parameters including volume, density and thickness of cortical and cancellous bone. Data were analyzed using SPSS22 statistical software and t-test, and P-value less than 0.05 was considered significant. Results:The results showed that in the apical region, the average thickness of cortical and cancellous bone was 2.28±0.67 and 1.11±0.56 mm, respectively. Also, in the middle region, the thickness of these bones was 2.16±0.74 and 1.06±0.40 mm. The average density and volume of ramus bone were also 1063.70±313.72 Hunsfield and 77.25±239.41 mm3. Conclusion: There is a direct and significant correlation between the ratio of cortical to cancellous bone thickness in the apical region in relation to age, which indicates a decrease in bone quality with age. It is possible that this decreasing process of bone quality is the same in men and women. ,