Objectives : The aim of this study was to evaluate the accuracy of linear width measurements of implant sites obtained from CBCT oblique axial images, reformatted panoramic images, and 3D volumetric images versus the direct measurements. Materials and methods: 15 implant sites were selected. A 0.9 mm orthodontic stainless steel wire was adapted and cut to fit the width of the implant sites. With the wire bonded to the abutment teeth, the patients were scanned using Scanora 3D CBCT scanner. The measurements of the wire obtained from the CBCT images were compared with their direct measurement. Results: Statistically high significant differences were found between the width measurements of the direct digital caliper (gold standard) and the three different display modes of the CBCT (oblique axial, reformatted panoramic, and 3D volumetric images) when each was compared separately with the gold standard. On the other hand, statistically non- significant differences were found in the accuracy of measurements between the three CBCT display modes. Conclusion: Orthogonal multiplanar reformatted (oblique axial) CBCT images are recommended for measurements since it showed the least percent of error when compared to reformatted panoramic, and 3D volumetric CBCT images.