FIGURE 1 Cerec 1 on the left sporting its tiny computer monitor and water-driven single, diamond milling wheel. Cerec 2 on the right is a quantum improvement in hardware with its high resolution optical impression camera and electric motors driving a diamond milling wheel and a diamond milling cylinder. Cerec 3 is centre-stage boasting a flat-screen monitor, Windows-based software, a diamond milling cylinder and a diamond milling tapered cylinder. Digital radiography and an intra-oral camera can be integrated to the Cerec 3 unit.