1992 Board exam
1993 Major, German Air Force
1994-99 Assistant Professor, Department of Operative Dentistry and Periodontology, University of Erlangen, Germany
1999 Visiting Assistant Professor, University of North Carolina at Chapel Hill, USA
2000 PhD and Associate Professor, University of Erlangen, Germany
2009- Chairman of the Department of Operative Dentistry, Endodontics, and Pediatric Dentistry, Philipps University Marburg, Germany
2012-14 President of the German Association for Conservative Dentistry
2016-19 Dean for Student Affairs in Medicine, Dentistry, and Molecluar Medicine
2019-22 President of the German Association for Dentistry and Oral Medicine
2023- Dean of Marburg Dental School
