The stage was set for existing advances in dentistry in the 1950s and 1960s when prototypes of computer-aided design (CAD) and computer aided manufacturing (CAM) were introduced into industrial settings. In those applications, the geometry of the "parts " was simpler than that generally needed for dental restorations, but the same technique could be applied to creating dental crowns. Advances in electronic technology have influenced every aspect of our society including dentistry. New technologies are constantly introduced that will ultimately make current dental procedures obsolete....