Digital imprint and computer-aided design/computer-aided manufacture (CAD/CAM) systems offer several benefits compared to traditional techniques.Digital technologies have revolutionized clinical prosthodontics, extending diagnostic, treatment and follow-up possibilities. The concept of intraoral digital impressions was put forward in the early 1980s.Intraoral scanners are used to create a digital image of the patient’s teeth,eliminating the need for traditional impression materials, as well as increasing patient comfort and decreasing anxiety. It has drawn comprehensive attention from dentists and has been used for dental prosthesis fabrication in a number of cases.Recently, Intraoral scanners have been successfully used in the fabrication of removable dental prostheses. This new digital impression technique is expected to bring about absolute digitization to the mode of prosthodontics. This article discusses the various digital impression systems available in the market, to provide the clinician complete information and knowledge ofapplication of the technology.