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In the CAD step, different software (S/W) modules can be used to design various types of prostheses, such as a crown, removable partial denture, complete denture, and implant surgical guide. In the image acquisition stage, an intraoral scanner may be used to scan the oral cavity, or a stone model can be scanned after impression making and stone pouring procedure. The workflow of the manufacturing of prostheses via digital restorative dentistry can be divided into three steps: image acquisition, in which the structure inside the oral cavity is documented CAD, the acquired images are imported to a computer program to design the desired restoration and CAM, the restoration is manufactured from the desired material based on the design data. Since its first application in restorative dentistry by Francois Duret in 1973, computer-aided design/computer-aided manufacture (CAD/CAM) has become engrained in dental practice.