1. Research and Development, Ivoclar Vivadent AG, Bendererstr. 2, FL-9494 Schaan, Liechtenstein.
2. Head of Ceramic Development, Ivoclar Vivadent AG, Bendererstrasse 2, FL-9494 Schaan, Liechtenstein.
3. Dentist, Dental Clinic, Research and Development, Ivoclar Vivadent AG, Bendererstr. 2, FL-9494 Schaan, Liechtenstein.
4. Head of Dental Clinic, Research and Development, Ivoclar Vivadent AG, Bendererstr. 2, FL-9494 Schaan, Liechtenstein.