2,3 Sirona Dental has introduced the CEREC Connect software program that enables the CEREC AC camera to record digital impressions for transfer to a dental laboratory. The CEREC ® Acquisition Center (AC) (Sirona Dental, and E4D Dentist™ (D4D Technologies, were both introduced as digital systems capable of imaging, designing, and fabricating ceramic restorations chairside. However, newer digital impressions systems, such as iTero™ (Cadent™, and the Lava™ Chairside Oral Scanner (C.O.S.) (3M™ ESPE™, are able to record digital data chairside and electronically transmit it to the dental laboratory. 1 Early systems were easily divided between dental office systems and dental laboratory systems as all three steps were completed in the same location. There are three general steps to the digital restoration workflow: 1) digital recording or scanning of the tooth geometry to capture digital data 2) manipulation of the digital data with a software program to create the volume model of the restoration and 3) production technology that translates the volume model into the restoration.
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