The purpose of this mini-review was to describe the CAD/CAM systems, their principles and their equipment, to highlight the major historical milestones in the development stages of dedicated dental CAD/CAM systems, and to identify the advantages/ disadvantages of using optical impressions compared to conventional impressions. This technique provides benefits in both directions of the designing and manufacturing process of a prosthetic restoration, i.e. in clinical and technological sectors. The main clinical benefits are strength, aesthetics, comfort, while the technical ones assure an easier, faster and more accurate fabrication process.
Keywords:- CAD/CAM technology
- marginal accuracy
- optical impressions
- processable materials