Prof Dr med dent Hendrik Terheyden is head physician at the Department of Oral and Maxillofacial Surgery, Helios Hospital in Kassel, Germany. Hendrik Terheyden studied dentistry from 1983 to 1989 at the University of Kiel. In 1989, he was a staff physician for the Navy in Flensburg. From 1989-1992 he studied human medicine at the University of Kiel. In 1993 he became a specialist in oral surgery and in 1997 a specialist in oral and maxillofacial surgery with the additional title of plastic surgery (1999). In 1999 he completed his PhD (Habilitation) at the University of Kiel. He received the Wassmund Prize of the German Society for Oral and Maxillofacial Surgery (DGMKG). In 2004, he became an adjunct professor at Kiel University. From 2009 to 2012, he was president of the German Society for Implantology, and from 2017 to 2019, he was Chairman of the Oral and Maxillofacial Surgery Working Group of the German Society for Oral and Maxillofacial Surgery (DGZMK). Since 2006, Prof Terheyden has been section editor of the International Journal of Oral & Maxillofacial Surgery, and since 2012 he has been editor in chief of the International Journal of Implant Dentistry. Since 2021, he has served on the board of the Working Group of Senior Hospitalists of the German Society for Oral and Maxillofacial Surgery.

Deborah A. Termeie, DDS, is a clinical instructor in the Department of Periodontics at the University of California, Los Angeles. She is a diplomate of the American Board of Periodontology (ABP), and it was her experience preparing for the ABP qualifying exams that inspired her to write this book. Dr Termeie is also an editor and author of Avoiding and Treating Dental Complications: Best Practices in Dentistry (John Wiley & Sons, 2016) and has published on the topics of evidence-based dentistry and implantology. She is the recipient of several awards, including the Excellence in Implantology Research award from the California Society of Periodontics, and has been invited to participate in the American Academy of Periodontics Leadership, Engagement, Action, and Development (LEAD) Program. She maintains a private practice in Beverly Hills, California.

Douglas A. Terry, DDS, holds positions as an adjunct professor in the department of restorative sciences at the University of Alabama at Birmingham and professor emeritus in the department of conservative dentistry and endodontics at the V.S. Dental College & Hospital, Rajiv Gandhi University of Health Sciences in Bangalore, India. He has authored several hundred scientific articles and textbooks, including Restoring with Flowables (Quintessence, 2016), Esthetic and Restorative Dentistry: Material Selection and Technique, Third Edition (2018), and Restoring the Intraradicular Space: Esthetic Post Systems (2021). He has lectured nationally and internationally on various subjects in restorative and esthetic dentistry and is a dental materials clinical research consultant for industry manufacturers. Dr Terry is founder and CEO of the Institute of Esthetic and Restorative Dentistry and a member of Oral Design International. He maintains a private practice in Houston, Texas.

Tiziano Testori received his MD degree (1981), DDS degree (1984). Speciality in Orthodontics (1986) from University of Milan, Italy. Fellowship at the Division of Oral Maxillo-Facial Surgery, School of Medicine, University of Miami, Miami FL (2000). Currently Head of the Section of Implant Dentistry and Oral Rehabilitation Department of Biomedical, Surgical and Dental Science, IRCCS, Galeazzi Institute, University of Milan, Milan, Italy. Assistant clinical professor School of Dentistry, University of Milan, Milan, Italy. Adjunct Clinical Associate Professor, Department of Periodontics and Oral Medicine, The University of Michigan, School of Dentistry, Ann Arbor, Michigan 48109-1078 USA. President (2017-2018) of the Italian Academy of Osseointegration. Member of the Editorial Board of IJOMI, EJOI, IJPRD, Quintessence Publishing and WJCC, Baishideng Publishing Group. Author of 112 peer-reviewed publications indexed in Pub Med, and 4 books in Implantology.

Dr. Tholey is a qualified dental technician and successfully completed his studies in dental technology in Osnabrück in 2005. He was department head / project manager Research & Development at VITA Zahnfabrik for 10 years and since 2015 Dr. Tholey has been in charge of our technical service (hotline, application technology, courses).

Prof. Dr. Daniel Thoma is the Head of Implantology and Regeneration at the Clinic of Reconstructive Dentistry, University of Zurich, Switzerland. He was trained in implant dentistry and prosthodontics at the Clinic of Reconstructive Dentistry, University of Zurich, Switzerland. Dr. Thoma was the recipient of an ITI scholarship and spent 1 year at the Department of Periodontics, University of Texas, Health Science Center, San Antonio, USA. In 2016, Dr. Thoma was a Visiting Associate Professor at the Department of Periodontology, Yonsei University, Seoul, South Korea. Since 2020, Dr. Thoma is an Adjunct Professor and serves as the Head of Implantology and Regeneration.

Professor Thompson works in the department of Tissue Engineering and Biophotonics at King's College London Dental Institute. Known for his work on adhesion and bonded bridges at the University of Maryland and later for work on ceramic fatigue at New York University, he has published many articles and made numerous presentations on dental biomaterials in the U.S. and internationally. His current research areas include diagnosing dentine caries activity, all-ceramic crown fatigue and fracture, engineering tissue response via scaffold architecture and practice based research (PEARL Network).

Carlo Tinti, MD, DDS, is a contract professor at the University of Turin and an assistant professor for the odontology and dental prosthesis degree course at the University of Florence, where he teaches “Surgical Techniques in Implantology.” His works have been published in national and international journals. He holds refresher courses and conferences in Italy and abroad about the most modern techniques regarding guided tissue regeneration in periodontology and implantology. Dr Tinti works as a dentist in Flero (Brescia), Italy, devoted exclusively to periodontology and implantology.

Associate Professor at the Department of Periodontology at the Institute of Odontology, The Sahlgrenska Academy at University of Gothenburg. Degree in dentistry in Verona University, Italy in 1991; certificate as specialist in clinical periodontology in 2002 at Gothenburg University, Sweden. In 2003 achieved the Master of Science in dentistry and in 2007 the Doctor Odont. Degree (PhD) at Sahlgrenska Academy at University of Gothenburg, Sweden with a thesis entitled “On approaches to periodontal infection control”. Winner of the European Federation of Periodontology prize for periodontal research in 2005.  Winner of the Scandinavian Society of Periodontology prize for young researchers in 2007. Active member of Italian Society of Periodontology (SIdP) and of Italian Academy of Osteointegration (IAO). Guest Professor at University of Padova, Italy. Working as periodontist and implantologist in his private practice in Trento, Italy from 1992.

Maurizio Tonetti graduated in Dentistry from Genoa University and received his masters in periodontology from Harvard University. He is a lecturer in Discipline Odontostomatologiche in Bern, Switzerland and currently a full lecturer and director of the Department of Periodontology and the School of Specialisation in Periodontology at Hong Kong University. He previously performed the same role at University College London and University of Connecticut Health Science Center. Dr Tonetti is also the executive director of the Research Group on Periodontology and Editor in Chief of the Journal of Clinical Periodontology. He is an active member and past president of SIdP and a member of the EFP steering committee. He is the author of more than 150 original scientific publications and has been a speaker at many important national and international conventions.

Mahmoud Torabinejad, DMD, MSD, PhD, is currently the President and CEO of the Torabinejad Institute of Surgical Education and Research Venues in Irvine, California. He has teaching positions in endodontics at multiple schools and is the former professor of endodontics at multiple schools and is the former professor of endodontics and Director of Advanced Program in endodontics at Loma Linda University School of Dentistry. He lectures internationally and has authored six textbooks and more than 350 publications. He is the #1 cited author in classic literature and regenerative endodontics in the field of endodontics. He is a past president of both the California Association of Endodontics and the American Association of Endodontists and has received numerous awards and accolades in the field of endodontics.

Dr Yahya Tosun DDS PhD, graduated from Istanbul University in 1984. He is a former professor, Department of Orthodontics, Faculty of Dentistry, Aegean University, Izmir, Turkey, currently in private practice at Dr Tosun Dental Clinic in Dubai, UAE and lecturer in the University for Digital Technology in Medicine and Dentistry, Luxembourg. He is the author, co-author and editor of four books mainly on “Biomechanics in Orthodontics” "Orthodontics for  General Practitioners" and “Modern Concepts in Orthodontics and particularly Interdisciplinary Orthodontics” published in English as well as Turkish languages. He has published several articles in national and international journals. In his private practice he works on "Adult Orthodontics", and on Early Orthodontic Treatments. He has also a special interest in Bruxism.  He lectures extensively on Biomechanics in Orthodontics and The Role of the Orthodontist in the Interdisciplinary Team.