To evaluate the accuracy of measuring peri-implant buccal bone when using three different computed tomography devices.Sixty tissue-level or bone-level dental implants were placed in bovine ribs with either buccal bone full coverage, dehiscence or fenestration. For each site, the distance from the bone defect to the implant neck and the buccal bone thickness 1 mm apical to the crest were measured using a calliper. Subsequently, all sites were scanned in a reproducible position using a multi-slice computed tomography (CT) (Brightspeed, voxel size 0.625 mm) and two cone-beam computed tomography devices (i-CAT NG, voxel size 0.3 mm and Newtom VGi, voxel size 0.2 mm). Bone thickness was measured on images from the three systems similar to direct measurements and differences were evaluated. Factors that could influence the buccal bone identification were assessed by multiple binary logistic regression.Buccal bone ranged from 0.1 mm to 2.75 mm in thickness and was not visible in 68

作者：Oscar, González-Martín；Carlos, Oteo；Ricardo, Ortega；Javier, Alandez；Mariano, Sanz；Mario, Veltri

来源：Clinical oral implants research 2016 年 27卷 8期