Since 2007: Secretary general of BDIZ EDI e.V. Since 2005: Board member of BDIZ EDI e.V. (European Association of Dental Implantologists) Since 1999: Foundation and integration of a dental laboratory (Dental Concept Berlin) Since 1998: Settled in Private Practice in Berlin 1997-2005: Establishment of the department for Implantology at the Charité, Campus Virchow-Klinikum, Clinic for plastic and oral surgery (Head: Prof. Dr. mult. h.c. J. Bier †) 1995-1997: Senior physician at the clinic for dental prosthetics Freiburg 1995: Award of doctorate Dr. med. dent. 1993: Assistent physician at the clinic for dental prosthetics in Freiburg (medical director: Prof. Dr. J. R. Strub) 1992: Licensed as a dentist 1987-1992: Study of Dentistry at the University of Freiburg 1984-1986: Training as dental technician, Dortmund