This means: Implant restorations, crowns, bridges & veneers. The Cerec is a cad/cam that allows us to make many of these in-house. The old way to have a crown made required 2 appointments 2 weeks apart. The crown would be made in a lab. Now, Dr. Darling designs, mills and cements the crown in the same appointment. Cerec allows Nate more control over the shape and color of the crown/bridge.