Study in dentistry at the Free University of Berlin
Scientific assistant at the Department for Dental Surgery of the Centre for Dental Medicine of the Charité Hospital (Director, Prof. Dr. P.A. Reichart)
Recognition as a specialist dentist for oral surgery
Group practice with Dr. Klaus Musebrink (specialist doctor for periodontology) in Dortmund
Recognition as a specialist in implantology (European Association of Dental Implantologists - BDIZ), registered since 1999 in Munich in his own private practice
zk6 joint practice in Pullach with Dr. Elke Reiser
Zahnärzte Kirchplatz 6 / Dr. Sonner & Kollege
Joint practice Zahnärzte Kirchplatz 6 in Pullach with Dr. Agnes Pach
Scientific publications in the field of implantology and oral surgery
Guest speaker with main emphasis on implantology and periodontology