In investigating an implant site, a surgeon requires information on bone volume and quality, topography and the relationship to important anatomical structures, such as nerves, vessels, roots, nasal floor, and sinus cavities. This information is obtained with a clinical examination and appropriate radiographic findings. The decision to proceed to cross-sectional imaging must be based on clearly identified needs and the clinical requirements of the clinicians involved.13 The paper discusses the application of computerized tomography in preoperative and postoperative assessment of proposed implant site.