2003-2013 Board Member of the Osteology Foundation

Specialist for Dentistry and Oral and Maxillofacial Surgery

1982-2012	Head of Department of Oral Surgery of the Dental School of the Medical University of Vienna
1987-2012	Chairman of the Dental School of the Medical University of Vienna
1983-2002	President of the Austrian Society of Oral Surgery and Implantology
2003	President of the European Association for Osseointegration (EAO)
2004-	Founder and Partner of the Academy for Oral Implantology in the Vienna Competence Center
2006-2016	Co-Editor of the International Journal of Oral & Maxillofacial Implants (IJOMI)

Former chairman and member of the scientific research committee of the Osteology Foundation in Switzerland

For years visiting Professor at the University of Pennsylvania (Penn University) and at UCLA and at King Saud University, Riyadh.

Honorary member of the Austrian, German, Czech and Greek Society of Implantology and the Hungarian Society of Dentists and Stomatologists.

Author of 9 textbooks and more than 300 international publications