Cerec is a computer system. 3 dimensional impression taken is transferred to this computer environment. Filling, zirconia, and empress veneers that will be realized in virtual environment are designed in this virtual environment. After design process is completed, it is passed on to production stage. Production is done by using 3 dimensional printer of Cerec and by scratching with special mills. All dental veneers or fillings with porcelain, zircon, and composite basis are produced with this three dimensional printer and they are made to be ready-to-apply to the mouth.