François Duret of France was the first person to develop a dental CAD/CAM device as early as 1971. Why CADCAM? What is CEREC and what is the history of this technology? In this blog, I'm going to start with the history of Dentsply Sirona, digital impression and CEREC.ĬAD stands for Computer-Aided Design and CAM stands for Computer-Aided Manufacturing and Dr.