Karl H. Wesker is an artist and an illustrator. He has worked for many years on the visualization and didactic presentation of complex structures. He has developed new methods that produce highly detailed and yet esthetically fascinating images of human anatomy. These methods form the foundation of the three-volume atlas of anatomy Prometheus, which is being published by Thieme and for which he has created most of the illustrations.

Dr. Peter Wetselaar, MSc, PhD, dentist and specialist in functional diagnostics and therapy of CMD and tooth wear, Chair in the Department and Clinic of General Dentistry, Academic Center for Dental Medicine Amsterdam (ACTA), Amsterdam/Netherlands

John Whitworth has led endodontic teaching and clinical service at Newcastle Dental School and Hospital, UK for more than 20 years. An active teacher, specialist clinician, researcher and scholar, he is a Past President of the British Endodontic Society, served the International Endodontic Journal as Assistant Editor/Deputy Editor in Chief for 10 years, and served the European Society of Endodontology as Chair of its Education and Scholarship Committee and as an Executive Board member. He has published numerous research articles and contributed to a number of standard textbooks.

Dr Luitgard G Wiest, Dermatologist and international lecturer, Munich, Germany

Dr Wiskott graduated in 1977. After three years of private practice and internship he earned a doctorate in dental medicine. He then transferred to the United States and in 1982 he received a Master of Science degree in periodontics from the University of Michigan. In 1989 he was awarded a Master of Science in Dentistry degree from About the authorthe University of Washington, specializing in fixed prosthodontics, and in 1998 a PhD degree in biomaterials. Dr Wiskott is the author of about 100 scholarly articles. He teaches and practices dentistry in Geneva, Switzerland.

Daniel Wismeijer graduated from the University of Nijmegen Dental School (1984) and received his PhD in 1996. Until 2006 he worked at the Amphia Teaching Hospital in Breda in the Oral Surgery and Maxillofacial Prosthodontics Department. In 1985 he started a general dental practice, which has been a referral practice for oral implantology since 1990. He was president of the Dutch Prosthodontic Association and the Dutch Association for Gnathology. He has been an ITI Fellow since 1993, a member of the ITI Board of Directors since 2013 and Chair of the ITI Education Committee since 2015. In 2006 he became Professor of Oral Implantology and Prosthetic Dentistry at ACTA Amsterdam where he was Chair and Head of the Department of Oral Implantology and Prosthetic Dentistry until 2020.

Since 1988, Siegbert Witkowskihas been working as Chief Dental Technician in the Department of Prosthodontics, University Hospital of Freiburg, School of Dentistry (Chair: Prof. Dr. B. Spies; Chair until 2016: Prof. Dr. Dr. h.c. J.R. Strub). He earned his diploma in Dental Technology from an apprenticeship program in Hannover, Germany. He did postgraduate studies and gained work experience at the following institutions: University of London, Royal Dental Hospital (1983-1984); University of Zürich, School of Dentistry (1984-1986); University of Southern California, School of Dentistry (1986-1988). Mr. Witkowski was certified as a Dental Technician (CDT) by the National Board of Certification of Dental Laboratory Technology (USA) in 1986. In 1991, he earned the diploma of the German Master Dental Technician from the master school in Freiburg, Germany. Siegbert Witkowski was co-editor and -founder of the German journal „Implantologie” [Implantology] (1993-2000). For the monthly journal „Quintessenz der Zahntechnik” [Quintessence Dental Technology] also by Quintessence Publishing (Berlin, Germany) he was serving as editorial board member (1997-2000), vice editor-in-chief (2004-2006) before being appointed as editor-in-chief (2007). In 2001 he was editorial chairman of the „Internationale Zahntechnik Magazin” [International Dental Technology Magazine] published by Flohr Publ. (Rottweil, Germany). He co-authored several book chapters, a textbook for dental students “Curriculum Prothetik” (1. ed. 1994 - 5. ed. 2021), a book on implant prosthodontics „Enossale orale Implantologie aus prosthetischer Sicht“ [Endosseous implantology from the prosthodontic point of view], published in 1996 by Quintessence Publishing and numerous journal articles. In recent past, he co-authored a book on dental CAD/CAM technology together with Prof. Dr. W. Att (Tufts University, Bosten, USA) and Prof. Dr. J.R. Strub (Emeritus, Freiburg) titled “Digital Workflow in Reconstructive Dentistry” published by Quintessence Publishing (2019). Siegbert Witkowski is a member of several national and international professional organizations.

June 2, 1968: Born in Kempten im Allgäu; 1990–1995: Studied dentistry at the Philipps University of Marburg; 1993: Accepted into the German National Academic Foundation; 1996: Doctoral studies at the University of Marburg; 1997: Assistant dentist in a dental practice near Cologne; 1998: Completed his doctorate on the subject of “Temperature development in dentine during dental preparation”; Since January 1998: Research assistant at the Clinic for Dental Prosthetics, Propaedeutics and Materials Science at the University Medical Center Schleswig-Holstein, Campus Kiel; April 2000: Appointment as senior physician; May 2001: Appointment as “Specialist for Prosthetics” by the German Society for Dental Prosthetics and Materials Science; 2006: Completion of the implantology curriculum (DGI); May 2006: Completion of habilitation (topic: “Evidence-based assessment of dental esthetics to improve quality of life”); Oct 2008: Appointment at the RWTH Aachen University to the W3 Professorship Clinic for Dental Prosthetics and Biomaterials, Center for Implantology; Since Oct 2008: Director of the Clinic for Dental Prosthetics and Biomaterials, Center for Implantology at the University Hospital Aachen; Since Nov 2008: Clinical focus for many years on dental implantology and implant prosthetics. In addition to implantology and implant prosthetics, Prof. Wolfarts’s research focuses on dental esthetics, the clinical testing of new all-ceramic materials, and the associated improvement in quality of life. He is a certified implantologist of the German Society of Oral Implantology (DGI) and an ITI Fellow (International Team for Implantology); Sep 2014: His book “Implant Prosthodontics – A patient-oriented concept” was published by Quintessence Publishing.

Benjamin Wu, DDS, PhD, received his dental degree from the University of Pacific, his postgraduate training in prosthodontics at Harvard School of Dental Medicine, and PhD in Materials Engineering from the Massachusetts Institute of Technology. He has succeeded Dr John Beumer as Chair of the Division of Advanced Prosthodontics, and he is also Director of the Weintraub Center for Reconstructive Biotechnology.  He is Former Chair of the Department of Bioengineering in the UCLA School of Engineering, and he holds formal appointments in the Departments of Materials Science & Engineering and Orthopedic Surgery.  Dr Wu has published over 250 peer-reviewed scientific papers and over 40 patents, and he received continuous National Institutes of Health (NIH) funding for his innovative research. His citations rank him among the top 2% of scientists according to Stanford‘s standardized citation metrics across all scientific disciplines. He is Fellow of the Academy of Prosthodontics and enjoys patient care in the UCLA Faculty Group Dental Practice.