The evolution of the CEREC system.
BACKGROUND
Early in 1980, the author anticipated the attraction of restoring posterior teeth with tooth-colored material. He conducted studies and developed the clinical concept of bonded ceramic inlays, at the same time raising the issue of the fast fabrication of the ceramic restorations. The author developed plans for in-office computer-aided design/computer-aided manufacturing (CAD/CAM) fabrication of ceramic restorations specifically to enable the dentist to complete one or multiple ceramic restorations chairside, in a single appointment. The initial concept comprised a small mobile CAD/CAM unit integrating a computer, keyboard, trackball, foot pedal and optoelectronic mouth camera as input devices, a monitor and a machining compartment. CEREC 3 (Sirona Dental Systems GmbH, Bensheim, Germany) divided the system into an acquisition/design unit and a separate machining unit. Three-dimensional software makes the handling illustrative and easy both in the office and in the laboratory.


CONCLUSIONS
It appears that the CEREC CAD/CAM concept is becoming a significant part of dentistry.


CONCLUSIONS
Sound knowledge of adhesive bonding and diligent planning are essential for the successful integration of CAD/CAM into clinical dental offices.
Mörmann
Werner H
WH
Department of Preventive Dentistry, Periodontology and Cariology, University of Zurich, Switzerland. werner.moermann@zzmk.unizh.ch
D002516:Ceramics / Q000266:history*; D017076:Computer-Aided Design / Q000266:history; D003764:Dental Materials / Q000266:history*; D017267:Dental Prosthesis Design / Q000266:history* / Q000295:instrumentation; D003793:Dental Restoration, Permanent / Q000266:history* / Q000379:methods; D049673:History, 20th Century; D006801:Humans
D003764:Dental Materials; C074543:Cerec