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Jef van der Zel (1947) received his doctoral degree in metallurgy at the Technical University of Delft in 1972. From 1972-1975 he worked as senior research engineer for AngloAmerican in Zambia and returned for 2 years to the the TU Delft in the Department of Material Science. In 1977 he became co-founder and technical director of Elephant Dental BV responsible for the development and production of dental alloys, porcelain systems, implants and CAD-CAM-technology. In 1989 he obtained his PhD-degree on the thesis entitled “High-temperature behavior of high-palladium dental alloys”. In 1997 he received the King William I award for innovation and technology out of the hands of his royal highness Prince Claus and was knighted to the order of the Dutch Lion by Queen Beatrix. In 2003 he became the first professor in Computerized Dentistry at the Academic Centre for Dentistry Amsterdam (ACTA). He founded and chaired the ISO/TC106 Ad Hoc 1 Group for standardization of dental CAD/CAM. He was directly responsible for several developments, of wich the main ones were Carrara/Golden gate system, a rich gold alloy and a low melting veneering ceramic, of which more than 100 million units were produced wordwide, the first light section tabletop scanner, design software including virtual articulation, production methods for veneered restorations by CAD CAM based on alumina (Cicero) and zirconia (Primero) and a guided implantation method based on 3D optical and X-ray data (Armada). He published more than 100 articles on dental materials and CAD-CAM.
Prosthodontics, dental materials, computerized dentistry