Prof. Dr. Dr. h.c. Holger Jentsch Clinic for Cariology, Endodontology and Periodontology, University Hospital of Leipzig. Since 2001 Prof. Jentsch is a full Professor at the University of Leipzig, Germany. There, he is the head of the Centre of Periodontology. He was appointed as a specialist for Periodontology by the German Society for Periodontology (DGPARO) in 2004. In 2012 he was awarded with a honorary doctorate of the Victor Babes University of Medicine and Pharmacy Timisoara, Romania. He is an active member in several national and international scientific organizations, like DG PARO, NAgP, IADR and DGZMK. His scientific interests are clinical studies, investigations of the biofilm as well as new approaches in different treatment steps of periodontitis.