The accuracy of a high-precision digitizer for CAD/CAM of crowns.
An alternative method for manufacturing fixed prostheses that uses machine digitalization and a combination of milling and spark erosion has been developed. The digitizer used has a contact probe with a ball-shaped tip. This study evaluated the accuracy of the device and the transfer of data from the individual die to the computer. The dimensions of a square gauge as read by the machine were compared with the known dimensions of the object with a computer, which allowed determination of the accuracy of the digitalization. Procera machining and the implications for reliable prosthodontic treatment are discussed.
D000703:Analog-Digital Conversion; D017076:Computer-Aided Design; D003442:Crowns; D018772:Dental Marginal Adaptation; D003775:Dental Polishing / Q000295:instrumentation; D017267:Dental Prosthesis Design / Q000295:instrumentation*; D006801:Humans; D003765:Models, Dental; D015203:Reproducibility of Results