Björn Ludwig is an orthodontics specialist who operates his private office in a small village in Germany.

He holds positions at two universities: the University of Homburg/Saar in Germany and the Department of Orthodontics, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Sweden.

While his primary focus is on clinical work, he has a strong affinity for technology, which consistently sparks his interest.

He is dedicated to advancing as a researcher and writer, actively participating in a variety of research projects and taking on editorial roles for academic journals.

Furthermore, he serves as an editor for several books and is the author of numerous book chapters in classic orthodontic texts.

In addition to his passion for orthodontics, he also takes pleasure in cycling as a means tounwind.

The coverage of recessions around teeth is a very successful surgical treatment. The published evidence suggests that periodontal plastic surgeons can very predictably perform these procedures. However, how does reality present? What are the measurement methods and indexes used to support the external evidence? During this lecture, we will look very critically at the evidence we used to support our enthusiasm about the coverage of recession procedures. Second, we will try to answer the raised question in the title of this lecture. Third, the entire thought process will be supported by clinical cases.

Otto Zuhr studied dentistry at the University of Aachen from 1986 to 1992. He is board-certified specialist in Periodontology of the German Society of Periodontology (DGParo) and runs a private office together with Marc Hürzeler in Munich, Germany dedicated to periodontology and implant dentistry. With more than 25 years of clinical experience and teaching practice, Dr. Zuhr has become a proven expert in his field well beyond the European borders. From 2007 to 2014 he was board member of the German Society of Periodontology (DGParo) and he`s presently holding an associate professorship position at the Department of Periodontology of the Johann-Wolfgang-Goethe University in Frankfurt/Main, Germany (Director: Prof. Peter Eickholz). Otto Zuhr has written several refereed scientific articles in the field of periodontology and implant dentistry. His book "Plastic Esthetic Periodontal and Implant Surgery" was published by Quintessence Publishing in 2012. His research activities are focused on oral soft tissue wound healing and oral soft tissue reconstruction.

Dr. Wolf Richter studied dentistry at the university of Bonn where he graduated in 1986. During the following 3 years and even before opening up his own dental office in Munich in 1990, he set up the base for his endodontic knowledge throughout repeated participations in clinical trainings given by Frank Wein and Peter Guldener. Initiated by that, his prior interest for endodontics kept steadily growing in the aftermath and resulted in the installation of the first surgical microscope into the office. His succeeding primary dedication to mere endodontic treatments followed subsequently as a logic professional step. From 1997 on, his professional development therefore involved several clinical traineeships with S. Kim and C. Ruddle in the United States. Since 1997 Dr Wolf Richter has thereby become a frequently asked teacher in the field of microsurgical endodontic treatments by himself within the frame of his own course programme. In the year of 2000, Dr Wolf Richter finally launched his own private practice in Munich. Two years later, he was one of the founding members of the German Association of Endodontics (DGET) for which he officiated twice as a chairman during the following years (2002-2005 and 2006-2007). From 2002 to 2009 Dr Wolf Richter was teaching in cooperation with Dr Josef Diemer at the Institute for Periodontology and Implantology focusing on the conventional and surgical endodontic skill set. In 2005, Dr Wolf Richter was appointed to an EDA-Specialist for Endodontics. Since 2006, he has been lecturing in the course of the DGET-Curriculum and has been deputized as a DGET-specialist in 2007. From 2011-2017 he was lecturing in the master programme of the Dusseldorf Dental Academy (DDA).