Affiliation: | 1. Private Office Huerzeler/Zuhr, Munich, Germany;2. Department of Operative Dentistry and Periodontology, Albert Ludwigs University, Freiburg, Germany;3. Schupbach Histology Ltd., Horgen, Switzerland;4. Department of Periodontology and Implant Dentistry, New York University, NY, USA;5. Department of Periodontology, Julius‐Maximilians‐University, Wuerzburg, Germany |