Ralf J. Radlanski is Director of the Department of Craniofacial Developmental Biology at Charité, the Center for Dental and Craniofacial Sciences. As an anatomist, an internationally esteemed scientist, and as a practicing orthodontist, he works at the interface between biology-anatomy on the one hand and esthetic clinical requirements on the other, a crucial area of interaction in many clinical disciplines.

Michael Radu, DDS, MS, is a dentist who has practiced for over 40 years in three different countries across two continents. He believes strongly that his work is to help dentists with occlusion in their practice, so he lectures and educates his fellow dentists every chance he gets. He believes in science above all, which is why occlusion lies so close to his heart. Michael Radu also believes in the power of mentorship and the importance of sharing ideas to achieve new levels of understanding. Beginning with his physics professor in college and stretching to Klaus Pfeiffle and Michael Noczinski in Germany, Peter Dawson and Frank Spear in the United States, and the coterie of dentists at the American Equilibration Society, the support and positive challenges he was given have shaped his scientific approach to occlusion. In his eyes, the simplest, most irrefutable evidence is mathematics. When we think in terms of stability, vector of force, angles, and alike, we are less prone to make mistakes. Dentists will always prefer to work in the existing occlusion because no changes seem safer than the alternative, but Michael Radu challenges this notion and implores his colleagues to understand the scientific principles underlying the concept of occlusion so they can better care for their patients.

Ariel J. Raigrodski, DMD, MS, received his DMD degree from the Hebrew University in Jerusalem, Israel. He went on to receive his certificate in prosthodontics from Louisiane State University School of Dentistry, where he also completed a fellowship in implants and esthetics and an MS degree. Dr Raigrodski is currently a professor in the Department of Restorative Dentistry and an adjunct professor in the Department of Washington. He is a Diplomate of the American Board of Prosthodontics, a Fellow of the American College of Prosthodontists and the International College of Dentists, a member of many professional organizations, and a member of several editorial boards for professional journals. Dr Raigrodski's research focuses on ceramics, implant esthetics, and CAD/CAM technology. He has published extensively and lectures both nationally and internationally. Dr Raigrodski maintains a private practice limited to restorative, implant, and esthetic dentistry in Kenmore, Washington.

Bestsellerautor Roger Rankel gilt als der Experte für Kundengewinnung. Mehrfach ausgezeichnet, unter anderem mit dem "Großen Preis des Mittelstands" und dem "Internationalen Deutschen Trainingspreis", gehört er sowohl für DAX-Unternehmen als auch für erfolgsorientierte Mitelständler und ambitionierte Praxisinhaber zur ersten Wahl, wenn es um Kundengewinnung und nachhaltige Umsatzsteigerung geht. Für den Marketingpapst Prof. Dr. Michael Zacharias ist er der "Begründer des modernen Verkaufens".

Giulio Rasperini, DDS, is an associate professor of dentistry and periodontology in the Department of Biomedical, Surgical, and Dental Sciences at the University of Milan in Italy and an adjunct clinical associate professor in the Department of Periodontics and Oral Medicine in the School of Dentistry at the University of Michigan. He serves on the editorial board for The International Journal of Periodontics & Restorative Dentistry, has published and lectured extensively on periodontology and implantology, and is the recipient of several research awards. In 2017, Dr Rasperini founded the iPerio Education Center in Piacenza, Italy, with Dr Giorgio Pagni and Dr Raffaele Acunzo.

Dr. Pamela S. Ray is a Board Certified Periodontal surgeon practicing in San Antonio, Texas. Dr. Ray graduated from the University of Texas Heath Science Center Dental School in 1989, and completed her certificate in Periodontics in 1991. Immediately following graduation, she was the first woman dentist to establish practice in San Antonio. Dr. Ray has a comprehensive outlook on Periodontics providing both disease and cosmetic periodontal treatment. She has interests in Bone Grafting, Soft Tissue Augmentation, and Dental Implantology. Dr. Ray lectures locally and nationally, on surgical and non-surgical periodontal therapy, as well as practice management.

Dr Al Reader received his DDS from The Ohio State University College of Dentistry in 1971 and completed his endodontic training at The Ohio State University in 1975, earning his certificate in endodontics and an MS for research involving pulpal nerve innervation. Dr Reader is a Diplomate of the American Board of Endodontics and has served as its director. He is currently Professor Emeritus and was past program director of the Advanced Endodontic Program in the Division of Endodontics. He has advised or was a committee member for 168 master theses and has authored more than 175 scientific articles and 14 chapters in leading endodontic texts. Dr Reader has received recognition from the American Association of Endodontics in the form of the Louis I. Grossman Award for contributions to the endodontic literature and the I.B. Bender Lifetime Educator Award. His focus of research is local anesthesia and pain control.

Dr. Rechenberg is a senior lecturer at the Division of Endodontology, Clinic for Preventive Dentistry, Periodontology, and Cariology, University of Zurich, Switzerland. He graduated in Germany from the University of Göttingen, School of Dental Medicine. After finishing dental school he worked at the University of Göttingen, and then the University of Zurich, where he received his doctoral degree in dentistry (Dr. med. dent.). In 2012 Dan completed the postgraduate endodontic program at the Univeristy of Zurich, became a certified member of the Swiss Society of Endodontology (SSE), and the European Society of Endodontology (ESE). In 2017 he received the venia legendi (private docent title) from the University of Zurich. Dan is on the editorial board of the International Endodontic Journal and acts as a reviewer for other dental journals. Currently he works part-time at the University of Zurich as Co-Head of the postgraduate endodontic program and in research, where his main research focus is on diagnostics for pulpal and periapical disease. In addition, he maintains a private practice limited to endodontics/apical microsurgery in Zurich. Dan has served as an active member of the ESE Membership Committee since 2017 and has participated in the ESE accreditation process for postgraduate speciality training programmes.

May 1989-Aug. 1994: Study of Dentistry. Oct. 1994-Nov. 2005: Dental Prosthetics at the University of Erlangen. 2005: Habilitation. Dec. 2005-Sep. 2009: Dental Prosthetics at the University of Leipzig. Since Oct. 2009: Dental Prosthetics at the University Clinic Aachen (Director Prof. Dr. S. Wolfart). Since July 2012: W2 Professorship for the Teaching and Research Area of Computer-Aided Dentistry at the Clinic for Dental Prosthetics and Biomaterials.