Lectureship Harvard School of Dental Medicine
- Own practice and Apl-professorship at the University of Witten/Herdecke
- Specialist of the German Society for Prosthetics and Materials Science (DGZPW)
- Head of the University Polyclinic of the Faculty of Dental, Oral and Maxillofacial Surgery, University of Witten/Herdecke
- Professorship for dental prosthetics at the University of Witten/Herdecke
- Lectureship Harvard School of Dental Medicine, Boston, USA, specialist of the German Society for Prosthetics and Materials Science (DGZPW)
