RoboDent and the change of needs in computer aided dental implantology during the past ten years

RoboDent was the first stereovision based computer assisted surgery system on the market dedicated completely to dental implantology. The article describes the medical background of dental implants, different methods of instrument guidance, and the state of the art in computer aided dental surgery around the year 2000. The navigation information processing is explained using homogenous transformation matrices and the reason for a lower bound of achievable accuracy. Finally, the major changes of the system in the past 10 years are explained.