It is a pleasure for me to contribute my knowledge and have a professional exchange with you as participants. For more than 30 years I have been working as a periodontologist. First in the University of Frankfurt, School of  Dentistry, where I became the first accredited specialist of the German Society of Periodontology in 1993. Since 2007 I am the Head of the Section of Periodontology at the Department of Operative Dentistry and Periodontology at the University Medical Center in Freiburg. I am the scientific leader of the Postgraduate Study Program “Master in Periodontology and Implant Therapy”. Apart from treating patients, I hold lectures for undergraduate and postgraduate students and work scientifically in different fields of dentistry.