Relationship between the bone density estimated by cone-beam computed tomography and the primary stability of dental implants
Keywords:
cone beam, bone density, primary stabilityAbstract
It enables more accurate three-dimensional evaluation of anatomic structures and directly measures the bone density. The density of the bone is usually expressed in Hounsfield units (HU)1 which is a parameter that provide the most important details about the available bone. A total of 18 fresh femoral heads of swine were taken for the study. The adjacent soft tissues have been removed completely and the surfaces of the bone blocks were made flat using a carbide bur. The thickness of each block was cross-checked using precision vernier calipers and maintained at more than 10 mm. Using the ISQ values as the independent variable, the standardized partial regression coefficients of the thickness of the cortical bone, the voxel value, and the length of the implant were 0.328, 0.306, and 0.422 respectively, all of them are significant variables. It has been observed that there was a correlation between the thickness of the cortical bone or the voxel values obtained from the CBCT scanning images prior to the implant placement and the implant stabilities.
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