Digital impression scanners are devices for capturing direct optical impressions, in lieu of the traditional plaster moldings that can be uncomfortable for some patients. Similar to other three-dimensional (3D) scanners, they project a light source (laser or structured light) onto the dental arches. The 3D surface models of the dentogingival tissues are the result of the optical impression and are the ‘virtual’ alternative to traditional plaster models. Digital impressions reduce patient discomfort, are time-efficient and simplify clinical procedures for the dentist. Digital impression scanners are quite accurate in capturing impressions for fabricating a whole series of prosthetic restorations (inlays/onlays, copings and frameworks, single crowns and fixed partial dentures) on both natural teeth and implants; in addition, they can be used for smile design, and to fabricate posts and cores, removable partial prostheses and obturators.