Torus mandibularisin mandibular kortikal indeks ile ilişkisinin araştırılması

Abstract

Torus mandibularis (TM) is one of the common oral exostoses with its specific anatomic location. The etiology of TM has been investigated by several authors; however, no consensus has been reached. Genetic factors and environmental factors such as masticatory stresses generally mentioned together in the etiology of the TM. In view of the previous studies have shown the relationship between presence of TM and high skeletal bone mineral density (BMD), it was suggested that TM may be an indicator of high BMD and an individual with TM might have a lower risk for future osteoporosis development. Conventional radiographs and digital imaging techniques can be used in the evaluation of the quality and quantity of the jawbone. In these methods, mandibular cortical index (MCI) is a simple measurement to determine bone quality in panoramic radiographs which is based on the classification of the radiographic image of the inferior mandibular cortex. It was claimed that MCI may be an indicator of skeletal BMD. The aim of this study was to investigate the relationship between TM and MCI as well as the etiology of TM. In our study, the data regarding age, gender, dental status, Eichner index (EI) was recorded and MCI measurements were made of 381 patients including 109 with TM and 272 without TM, who were randomly selected from the patients over the age of 20. Bruxism awareness has been studied using questionnaires of 268 patients. The result of our study demonstrated that presence of TM is associated with age, EI, diurnal bruxism and MCI furthermore logistic regression analysis revealed that the factors identified as being affected on MCI were age, gender, EI and TM.