Traditional time consuming and often messy impressions are no longer needed with the advent of the Cerec 3D CAD/CAM System. The Cerec System takes an optical impression of the preparation and the antagonist, resulting in an accurate impression.
To allow you complete control of the finished prosthesis you specify the positions of the margins and the proximal contacts. It goes on to swiftly fabricate the crown, inlay, onlay or veneer accurately, quickly and to a high quality. Cerec automatically computes the occlusal contacts referring to the antagonist resulting in the perfect fit.
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Traditional impressions not needed. Br Dent J 201, 675 (2006). https://doi.org/10.1038/sj.bdj.4814295