The Utility of CBCT in Assessment of Man-dibular Bone Cortex in Osteoporotic and Non- Osteoporotic Females

Abstract

Background: Bone is a living tissue, it consistently undergoes modeling and remodeling to withstand growth and functional demands. Differences in female Hormones influence bone quality and quantity particularly through post menopause leading to susceptibility to osteoporosis. This is a study of the effect of osteoporosis on mandibular cortical width in post-menopausal females to distinguish it from aging effect by using Cone Beam Computed Tomography (CBCT).Aims: to distinguish the effect of osteoporosis from the effect of aging on mandibular cortical bone by using Cone Beam Computed Tomography (CBCT). Material and method: group sample composed of 60 Iraqi females sectioned into 3 groups based upon their age and osteoporosity status that was estimated by Dual Energy X-ray Absorbometry (DEXA) scan , Group A (20-30 years, non-osteoporosis), Group B (50years and above, non-osteoporosis), and Group C (50years and above with osteoporosis), each patient had a cone beam computed tomography scan, then mandibular cortical width at mental foramen area was studied among groups. Also Receiver Operating Characteristic (ROC) curve was used to check Mandibular Cortical Width diagnostic reliability. Result: Mandibular Cortical Width showed non-significant difference between Group1 and Group2, while it showed a high significant difference between Group2 and Group3. Also ROC curve analysis showed very good diagnostic reliability. Conclusion: Mandibular Cortical Width was not affected by ageing factor, whereas it showed a significant decrease due to osteoporosis effect.