Comparison of two modes of cone-bean computed tomography for the assessment defects of buccal bone plate in anterior mandibulae

Bovanova Nadezhda Victorovna, Golubeva Galina Ivanovna

The aim of this study was to evaluate the effect of voxel size in two different modes of CT scanning on the visualisation of the morphology of buccal cortical plate. Twenty CT scans of patients who underwent gingival plastic surgery in the mandibular anterior region were studied. CBCT data were obtained in two modes with a voxel size of 0.16 mm3 and 0.4 mm3. The surgical data and CT data were compared by Pirson correlation coefficient. Voxel size 0.16 mm3 can be recommended for the assessment of the morphology of the buccal cortical plate. However, it is possible to overestimate the actual size of intrabony defects.

Keywords:cone beam computed tomography, gingival recession, buccal cortical plate, voxel size