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Abstract

Digital dentistry depends on computer-aided design (CAD) software and computer-aided manufacturing (CAM) systems. With CAD/CAM systems, a large quantity of desired tools for dentistry can be easily created with a high degree of accuracy. Digital scanning is one of the recent method used in dentistry. It provides accuracy, precisions to the prosthesis and it also as more advantages as compared to conventional techniques. Aim of this publication is to provide an extensive review on intra-oral scanners used in dentistry with particular attention given to the history, working principle of scanners, knowledge about accuracy and precision of all the scanners.