A relatively new diagnostic imaging modality ,which promises to revolutionize the practice of oral and maxillofacial radiology. It is used as dedicated 3D imaging tool in dentistry, which has improved the maxillofacial surgeon\'s access to advanced imaging. This section speaks about history, technical basis, clinical applications of CBCT, role of CBCT in implantology, and advantages of CBCT. There are flow charts explaining major benefits and limitations of a CBCT, special indications for cross-sectional imaging, and the basic principles for use of Dental Cone beam CT.