born in Sand in Taufers (South Tyrol) graduated from the 5-year dental technician school in Bolzano (South Tyrol). 1981: foundation of his own dental laboratory "Steger" Author of "The Anatomic Chewing Surface", published by Quintessenz. 2003: foundation of the company Zirkonzahn Speaker at dental meetings in his function as a visionary of dental technology Inventor of the manual milling system for zirconia and the CAD/CAM System 5-TEC Inventor of Zirconia Prettau® and the Prettau® Bridge.