1. Guidance for Industry and FDA; Class II Special Controls Guidance Document: Optical Impression Systems for Computer Assisted Design and Manufacturing (CAD/CAM) of Dental Restorations; Guidance for Industry and FDA; availability Internet site at http://www.fda.gov/ohrms/dockets, last visited 1-2-2006
2. Meßfehler bei der 3D-Erfassung von Oberflächen durch mechanische Profilometrie;Pelka;Dtsch Zahnärztl Z,1995
3. The accuracy of a high-precision digitizer for CAD/CAM of crowns;Persson;J Prosthet Dent,1995
4. Dental CAD/CAM technologies: The Optical Impression (II);Pfeiffer;Int J Comput Dent,1999
5. Scanner — Wo liegen die Grenzen? Team Work;van der Zel;J Multidisciplinary Collaboration Prosthodont,2003