The CAD/CAM technology is even more in use in modern dentistry, because of its possibility of giving the 3D plan for any kind of products, by the use of computer and its machine production. The advantages of this technology are in diminishing the human work, making the production easier and quicker and also keeping a good quality of products. In the begin the use of this high technique products was very small because of its high price and big complexity, but later the use increased with the appearance of PC technology. CAD/CAM are mostly used for making the restorations such as inlays, onlays, bridges and crowns. CAD/CAM systems are made of three different parts: Computer Aided Inspection device, computer for planning the restoration (CAD part) and mill machine (CAM part). Materials used for making the restorations are mostly titanium and different kinds of milling ceramics. During the history there were series of CAD/CAM devices like: Duret/Sopha, Minnesota, DentiCad Rekow, Procera, DCS Precident, Microdenta, Ceramatic, Cicero, COMET, CAP, Inlac, Etkon, CAC system and many more. Also there were series of classifications according to listed devices and the mostly used one is one which is based on the technique of the restoration production, in which are three groups: real CAD/CAM systems (Duret/Sopha, Minnesota, Procera, DCS Precident, Microdenta, Cicero, CAP, Inlac, Showa/Nissan), CAD/CIM systems (Cerec) and copy-mill systems (Ceramatic, Celay). According to the material types we can see that all systems except Inlac system can process milling ceramics, while Duret/Sopha, CAP, Showa/Nissan, Ceramatic, Celay and DentiCad cannot process titanium as a restoration material.