Asgeir received his DDS from University of Iceland and after two years in private dental practice moved to University of North Carolina (UNC) and graduated in 1992 with certificate in endodontics and MS with emphasis on pain and pain modulation.

Full time faculty at UNC 1992-2004, was the Graduate Program Director of Endodontics 1997 to 2004. From 2004 to 2012 in a private endodontic practice in Reykjavik, Iceland and London, UK and Honorary Clinical Teacher in Endodontology, UCL Eastman Dental Institute, UK. 

In 2012 he became the Chairman and tenured Professor at NYU Dentistry, Department of Endodontics. Additionally, he is an adjunct Professor at UNC. 

Asgeir is past President of the International Association for Dental Traumatology and 2014 he was appointed as a Director of the American Board of Endodontics and served as the President of the Board 2019-20.  He is currently on the editorial board of Dental Traumatology.

He has been invited numerous times to lecture in 49 countries all over the World, on the topics of pain, endodontics, dental trauma and/or forensic sciences. He has written or co-written over 90 per-reviewed articles and 23 textbook chapters on same topics.

Dr. Varun Singh is a specialist in endodontics practicing at The Dental Specialists in the Minneapolis–Saint Paul metropolitan area. He earned his Bachelor of Dental Surgery from the Army College of Dental Sciences before completing Advanced Training in Clinical Endodontics at the UCLA School of Dentistry. Dr. Singh subsequently earned a Master of Science in Dentistry in Endodontics and a Certificate in Advanced Graduate Studies in Endodontics from the Boston University Henry M. Goldman School of Dental Medicine.

An active member of the American Association of Endodontists, Dr. Singh has contributed to multiple peer-reviewed publications spanning dental and oral health research. In his clinical practice, he enjoys the intricate anatomical challenges of endodontics. Because every tooth features a unique structure and root canal configuration, he carefully designs a customized treatment plan for each patient, striving to provide exceptional care with the ultimate goal of retaining their natural teeth.

Outside of the clinic, Dr. Singh is an avid skier, enjoys aerial videography, and loves taking scenic road trips with his wife to explore new locations. Whether he is planning his next winter trip to the mountains or relaxing at home, he is always game for a spirited discussion about basketball.

Dr. Andrew J. Miller completed his dental degree, Advanced Education in General Dentistry program, and postgraduate endodontic training at Boston University Henry M. Goldman School of Dental Medicine, where he serves as Clinical Associate Professor and previously served as Director of Predoctoral Endodontics. He is a Diplomate of the American Board of Endodontics and a Fellow of the Royal College of Dentists of Canada. A coauthor of the AAE Trauma Guidelines, Dr. Miller served on the AAE Special Committee to Update the Trauma Guidelines and the Public and Professional Relations Committee. He currently chairs the AAE Practice Affairs Committee.

Dr. Brooke Blicher received her BA in Chemistry from Colgate University, where she graduated Magna Cum Laude and Phi Beta Kappa, her DMD from the Harvard School of Dental Medicine where she graduated with honors in research, and her certificate in Endodontics from Tufts University School of Dental Medicine.

Dr. Blicher is a Diplomate of the American Board of Endodontics, and a Fellow in both the American College of Dentistry and the International College of Dentistry.  She continues to be involved with teaching, research and mentorship, holding faculty appointments at both Harvard and Tufts Schools of Dental Medicine. Dr. Blicher has been involved in organized dentistry as a member of several committees for the American Association of Endodontists, and her local and state dental societies. 

While providing state of the art specialty care in her private practice in White River Junction, Vermont, Dr. Blicher continues to pursue her academic interests.  She authored the chapter “Diagnosis and Treatment Planning” in the 6th edition of Endodontics: Principles and Practice, as well as the textbooks  Endodontics: A Review, now in its second edition, and the newly published Clinical Endodontics, available in March.  She has published extensively, including in the Journal of Dental Research, General Dentistry, Inside Dentistry, and Compendium. Dr. Blicher has lectured both locally and internationally on endodontic diagnosis, non-odontogenic pain, fractures, trauma, resorption, treatment of immature teeth, and CBCTs in endodontics as well as on ideal restorative care following endodontic treatment.

Dr. Fabricio Teixeira is Professor and Chair of the Department of Endodontics at the University of Iowa. He is also the current holder of the Richard E. Walton Professorship. Before coming to Iowa, he served as Director of the Advanced Education Program in Endodontics at the University of Texas Health at San Antonio. He obtained his certificate in endodontics from the UT San Antonio and was the first recipient of the Endowment Carlos E. del Rio Distinguished Professorship in Endodontics. Before moving to Texas, he served as Associate Professor in the Department of Endodontics at the University of North Carolina at Chapel Hill, where he still maintains an appointment as adjunct faculty. Dr. Teixeira is Diplomate of the American Board of Endodontics and currently serves as Director of the ABE. He holds a position as endodontic consultant of the American Dental Association for the Commission on Dental Accreditation. He is member of the OKU National Dental Honor Society and Fellow of the International College of Dentists. He is former Associate Editor of Endodontic Topics, current editor Evidence-Based Endodontics and Visual Endodontics. He holds a position on the Scientific Advisory Board of the Journal of Endodontics and serves as peer reviewer on many other international journals. He is actively involved in clinical research and has lectured nationally and internationally on several topics. He has published extensively in peer-reviewed journals, abstracts and textbook chapters. He also maintains a private practice limited to endodontics in Iowa City.

Education: B.A. University of Nebraska, 1985 D.D.S. University of Nebraska Medical Center, 1988 Certificate, General Practice Residency, University of Nebraska Medical Center 1989 Specialty Certificate, Endodontics, University of Iowa 2003 M.S. Oral Science, University of Iowa 2004 Boards: Diplomate, American Board of Endodontics Brief Professional Resume: Dr. Williamson joined the faculty at the University of Iowa in 2003. Prior to her specialty training, she was a private practicing general dentist in Nebraska for 13 years. From 2006 to the present, Dr. Williamson has served as the Director of Advanced Education in Endodontics at the University of Iowa. National Appointments and Activities: Dr. Williamson was elected to the AAE Foundation Board of Trustees in 2008 and served as Secretary from 2010-2012. From 2004-2006. Dr. Williamson was the 2008 Edward M. She was a recent Educator Fellow of the American Association of Endodontists Foundation. More recently, she was Chair of the Annual Session Planning Committee for the AAE. Dr. Williamson currently sits as a Director on the American Board of Endodontics. She is a member of the American Association of Endodontists, International College of Dentists, the American Dental Association, Iowa Dental Association, University District Dental Association, and the American Dental Education Association.

Dr. Bourguignon practices endodontics and dental traumatology in her private office in Paris, France, after having earned a Postgraduate Certificate in Endodontics from the University of Pennsylvania. She was named a Foundation Fellow of the International Association of Dental Traumatology (IADT), where she served as director and officer for more than 12 years. She is a contributor to the Dental Trauma Guide (DTG). Trilingual, she advances dental trauma education worldwide, with a particular focus on French- and Portuguese-speaking countries.

She co-authored the internationally recognized “IADT Guidelines for the Management of Traumatic Dental Injuries,” published in 2007, 2012, and 2020. As lead author of the 2020 section on Fractures and Luxations, she contributed to an article that ranked among Dental Traumatology’s ten most downloaded during its first year of publication and helped significantly increase the journal’s impact factor.

The ESE Board (European Society of Endodontology) invited her to serve as a scientific contributor to the development of its S3 Guidelines. Published in 2023, they are the first S3-level clinical practice guidelines in endodontics.

Her other publications include two chapters in Elsevier’s “A Clinical Guide to Dental Traumatology”, translated into Spanish and Japanese; the dental trauma chapter in the French textbook “Endodontie”; and the chapter “Endodontic Aspects of Traumatic Injuries” in the UK textbook Harty’s Endodontics. She was also the lead author of the dental trauma chapter in Springer’s Pediatric Dentistry, published in 2022.

She also co-authored the AAE’s “Recommended Guidelines for the Treatment of Traumatic Dental Injuries”, published in 2026, making substantial contributions that gave them a distinct AAE perspective, an “AAE touch”.

Dr. Bourguignon has lectured as an invited speaker across France and also internationally in countries such as Australia, India, United States, United Kingdom, Brazil, Qatar, Poland, Czech Republic, Portugal, Germany, and Switzerland, as well as at congresses organized by the IADT, EAPD (European Academy of Pediatric Dentistry), AAE (American Association of Endodontists), and ESE.

İpek Eraslan Akyüz graduated from Gazi University Faculty of Dentistry. She is currently an Assistant Professor in the Department of Endodontics at Erciyes University Faculty of Dentistry. Her research interests include regenerative endodontics, root canal irrigation, endodontic biomaterials, and artificial intelligence-assisted diagnosis.

Beyza Ezgi Kıvırcık graduated from Hacettepe University Faculty of Dentistry. She is currently a research assistant in the Department of Endodontics at Erciyes University Faculty of Dentistry. Her research interests include artificial intelligence applications in endodontics, radiographic diagnosis, and working length determination.

Tuğrul Aslan graduated from Ege University Faculty of Dentistry and completed his PhD in Restorative Dentistry and Endodontics at Erciyes University. He is currently Professor and Chair of the Department of Endodontics at Erciyes University Faculty of Dentistry. His research interests include endodontic biomaterials and treatment outcomes, biomechanical analysis of endodontically treated teeth, and emerging diagnostic technologies in endodontics.

Dr. Domenico Ricucci received his Degree in Medicine in 1982 and his Degree in Dentistry in 1985 from “La Sapienza” University of Rome, Italy. Since then, he has maintained a private practice limited to endodontics, while also directing a personal histopathology research laboratory focused on pulpal and periapical tissue responses to disease and treatment.

His main research interests include tissue reactions to caries, vital pulp therapy, biofilms in endodontic infections, causes of root canal treatment failure, pulp regeneration, and dental trauma.

Dr. Ricucci has authored 122 scientific papers and 24 book chapters, and is the author of the following textbooks/atlases: Patologia e Clinica Endodontica (2009); Endodontology: An Integrated Biological and Clinical View (2013), translated into Russian (2015), Japanese (2017), and Chinese (2019); and the recent Vital Pulp Therapy & Clinical Endodontics: A Biological Approach (2026).
His contributions to endodontic science have been recognized with the Grossman International Award from the French Society of Endodontics (2017) and the Louis I. Grossman Award from the American Association of Endodontists (2023).

Dr. Rôças is Professor at the Postgraduate Program in Dentistry and Head of the Molecular Microbiology Laboratory, Grande Rio University, Rio de Janeiro, RJ, Brazil. She is also Chairman and Professor at the Dental Research Group, Iguaçu University, Nova Iguaçu, RJ, Brazil. She received her DDS from State University of Rio de Janeiro, in 1992, and her certificate of endodontic specialist in Gama Filho University in 1996. In 2002, Dr. Rôças received her Master’s Degree in Clinical Bacteriology from State University of Rio de Janeiro. She concluded her PhD in Microbiology and Immunology in 2004 at Federal University of Rio de Janeiro. Dr. Rôças has co-authored the book “Treatment of Endodontic Infections” and contributed several chapters for leading international endodontic textbooks. She has published more than 220 scientific articles. Dr. Rôças has served as a reviewer for many international journals and is currently a member of the Editorial Board of the Frontiers in Dental Medicine journal.

Dr Siqueira is Professor of the Postgraduate Program in Dentistry, Grande Rio University, Rio de Janeiro, and Professor and Chairman of the Dental Research Group, Iguaçu University, Nova Iguaçu, RJ, Brazil. He has authored 11 books on endodontics, microbiology, and immunology and also several chapters for leading international endodontic textbooks. Dr Siqueira published more than 430 scientific papers. He is the recipient of the 2014 Louis I. Grossman award from the American Association of Endodontists and the 2012 Louis I. Grossman award from the French Society of Endodontics. He currently serves as a member of the editorial board of several international journals for which he is also a reviewer. Dr Siqueira actively lectures on the subject of endodontics worldwide.

Dr. Wu Siwen is a Senior Consultant and Head of the Endodontics Unit at the Department of Restorative Dentistry, National Dental Centre Singapore. She is an accredited Endodontist with Singapore Dental Council and a teaching faculty staff with National University of Singapore. Her clinical interests include management of cracked teeth and endodontic surgeries.

Tudor Dascalu holds a PhD in Artificial Intelligence applied to Dentistry from the University of Copenhagen. He is a data scientist specializing in predictive modelling of treatment outcomes with prior research at Singapore General Hospital applying machine-learning methods to clinical healthcare data. His contribution to this work focused on model development and statistical analysis.

Dr Rachel Seet obtained her Bachelor of Dental Surgery at the National University of Singapore in 2016 and was awarded the University Medal in the final professional BDS examination as well as the Southeast Asia Association for Dental Education (SEADDE) Medal for being the best student with distinction in Endodontics. She thereafter obtained her Master in Dental Surgery (Endodontics) at the National University of Singapore in 2022.

She has been accredited as a Specialist in Endodontics by the Singapore Dental Council since 2024. She is currently an Associate Consultant in the Endodontic Unit, Department of Restorative Dentistry, at the National Dental Centre Singapore and at the Oral and Maxillofacial Surgery Clinic at Changi General Hospital. She is actively involved in clinical research and has had several works on cracked teeth published in the Journal of Endodontics, with an Honourable Mention at the Journal of Endodontics Awards 2022.

Dr Chan Pei Yuan is a Senior Consultant with the Endodontics Unit at the National Dental Centre Singapore. Her research focuses on the diagnosis, management, and long-term outcomes of cracked teeth, with a particular interest in survival analysis and predictive factors for pulpal sequelae. She currently serves as the Associate Programme Director for the Master of Dental Surgery (Endodontics) programme at the National University of Singapore.

Dr Yu Na is a Senior Dental Surgeon at the National Dental Centre Singapore (NDCS) and Associate Professor at the DUKE-NUS Medical School. Trained as a dentist and prosthodontist, she subsequently obtained her PhD in Medical Science at Faculty of Dentistry from Radboud University Nijmegen. She is the first dentist in Singapore who obtained the Clinician-Scientist Award from the National Medical Research Council (NMRC). As director and theme lead of MedTech research for Oral Health Academic Clinical Programme, much of her research work is focused on innovative workflows for digital dentistry, including digital processing, 3D printing of dental appliances, novel biomaterials and regenerative dentistry.

Her career goal is to become a leading clinician-scientist to advance oral health science and improve dental care through research and innovation. As principal investigator, she is developing her clinical research niche in optimizing prosthodontic treatment outcomes through novel digital dentistry and 3D printing methodologies. With this niche she led the multi-disciplinary research team that developed the software application SMART RPD and demonstrated feasibility in use of metal printing technology for RPD framework in a clinical trial. She also maintains a basic research niche in cutting-edge tissue engineering strategies for restoration of oral tissues. With this niche she has established validated clinically relevant periodontitis animal models and validated multiple bioactive agents for dental tissue regeneration. Pursuing both basic science and applied clinical research have been uniquely advantageous: her prior work in basic science unlocks fundamental limitations associated with digital imaging of oral cavity tissues, and her clinical studies incorporates the patient perspective in prioritization of scientific hypotheses, with a view towards adoption.

Jeffry Hartanto, Ph.D., is a computer scientist specialising in the application of artificial intelligence, computer vision, and computational geometry to healthcare. His work spans a range of clinical domains, including orthopaedics, dentistry, and vascular care. He is particularly interested in developing subject-specific, data-driven models that support non-invasive surgical planning, personalised treatment, and predictive care.

Dr. Bulat Ibragimov is an Associate Professor at the University of Copenhagen, where he leads research on artificial intelligence and medical image analysis for computer-aided diagnosis and treatment planning. Before joining Copenhagen, he worked at Stanford University and Johnson and Johnson. He has authored more than 60 peer-reviewed journal publications, including work on AI-based caries treatment planning and pulp exposure prediction. His research focuses on developing machine learning tools that help clinicians improve diagnostic accuracy and treatment outcomes.

Dr. Ukseong Kim is a Clinical Assistant Professor at Yonsei University College of Dentistry, South Korea. He received his DDS degree from Yonsei University in 2016 and completed his internship and residency training at Yonsei University Dental Hospital in 2020. He earned his PhD degree from Yonsei University in 2025 with a specialized doctoral focus on Endodontics.

Dr. Hayeon Park received her DDS degree from Yonsei University and completed her internship and residency training at Yonsei University Dental Hospital. She earned her MSD degree from the Yonsei University Graduate School.

Dr. Sunil Kim is a Professor in the Department of Conservative Dentistry at Yonsei University College of Dentistry, South Korea. He completed his entire academic journey at Yonsei University, earning his DDS in 2007, followed by an MS in 2010, and a PhD in 2016 with a specialized doctoral focus on Endodontics.

He joined the faculty as an Assistant Professor in 2017, and through his dedication to clinical excellence and academic leadership, he was appointed as a full Professor in 2026. Currently, Dr. Kim’s primary research and clinical interest lies in the integration of Artificial Intelligence (AI) within the field of Endodontics. He has been at the forefront of exploring how AI-driven diagnostics and treatment planning can enhance clinical precision.

Dr. Euiseong Kim graduated from Yonsei University College of Dentistry, Seoul, Korea, in 1990. He completed his internship and residency in the Department of Conservative Dentistry at Yonsei University and subsequently earned his Master of Science in Dentistry degree. From 1997 to 1999, he pursued advanced graduate training in Endodontics at the University of Pennsylvania, Philadelphia, USA.

Since joining the full-time faculty of the Department of Conservative Dentistry at Yonsei University in 2001, Dr. Kim has earned his PhD degree and has played a significant role in dental education and academic leadership. He has served as Dean of Yonsei University College of Dentistry, President of the Korean Association of Endodontists, Chair of the National Association of Deans of Dental Schools in Korea, and Chair of the Organizing Committee for the 2018 IFEA World Endodontic Congress.

Currently, Dr. Kim is Professor at Yonsei University College of Dentistry and Adjunct Assistant Professor, School of Dental Medicine, University of Pennsylvania. He also serves on the Scientific Advisory Boards of the Journal of Endodontics. Dr. Kim has authored more than 100 peer-reviewed scientific publications and is actively involved in research on endodontic microsurgery and pulp regeneration.

Dr. Sabeti's impressive dental career began with a DDS degree from the University of Texas Dental Branch at Houston in 1993. He then pursued further specialization, completing programs in Periodontics at Tufts School of Dental Medicine and Endodontics at the Herman Ostrow School of Dentistry of USC .
Following his postgraduate training, Dr. Sabeti served at the University of Texas Dental Branch from 1995 to 2000 in postgraduate periodontology. He has since distinguished himself through leadership roles at the University of California, San Francisco (UCSF). Currently, he directs their postgraduate endodontics program and chairs the PECC. He also holds the prestigious position of president for the Northern California Academy of Endodontics. He is also a site visitor for The Commission on Dental Accreditation and a delegate with the American Dental Education Association.
Dr. Sabeti is a board-certified endodontist renowned for his contributions to the field. He has actively shared his expertise through numerous invited presentations, publications in textbooks and chapters, and his dedication has been recognized with several awards. These include the Certificate in Recognition of Outstanding Services at USC, a Certificate of Appreciation from the University of Texas, and the Excellence in Teaching Award from UCSF's Haile T. Debas Academy of Medical Educators.

José Evando da Silva-Filho is a dentist (DDS) specializing in Endodontics at the University of Fortaleza (UNIFOR), Brazil. He is pursuing a Master of Science in Dentistry with a focus on Endodontics and Dental Imaging at UNIFOR.

Aryanna Celly Rodrigues-Lima is a dentist (DDS) specializing in Orofacial Harmonization at the University of Fortaleza (UNIFOR), Brazil.

Kayo Lúcio Silveira-Fernandes is a final-year undergraduate dentistry student at the University of Fortaleza (UNIFOR), Brazil.

Camille de Sousa Veloso is a dentist (DDS) specializing in Restorative Dentistry at the Brazilian Association of Dentistry – Ceará (ABO-CE), Brazil.

João Paulo Viana Braga is a dentist (DDS) with specialties in Dental Radiology and Imaging (ABO-CE), Implantology (Camilo Castelo Branco University – UNICASTELO), and Orthodontics (Ceará Association of Dentistry – ACO-CEC). He completed postgraduate training in Stomatology and Minor Oral Surgery, Periodontology (UNICASTELO), and Prosthodontics (ELEVA Dentistry). He holds a Master of Science in Dentistry with a focus on Pediatric Dentistry from the Federal University of Ceará (UFC), Brazil, and is pursuing an MBA in Business Management at the University of Fortaleza (UNIFOR), Brazil.

Sandra Régia Albuquerque Ximenes is a dentist (DDS) with specialties in Restorative Dentistry and Dental Radiology and Imaging at the State University of Campinas (UNICAMP), Brazil. She holds a Master of Science in Dentistry with a focus on Restorative Dentistry from São Leopoldo Mandic, Brazil.

Elilton Cavalcante Pinheiro-Júnior is a dentist (DDS) with a specialty in Endodontics at the São Paulo State University (UNESP), Araraquara, Brazil. He holds a Master of Science in Dentistry with a focus on Endodontics from the State University of Rio de Janeiro (UERJ), Brazil, and a PhD in Endodontics from the State University of Campinas (UNICAMP), Brazil.

Danielle Frota de Albuquerque is a dentist (DDS) who holds a Master of Science in Dentistry with a focus on Oral Biology/Stomatology from the University of São Paulo (USP), Brazil, and a PhD in Dental Radiology and Imaging from the State University of Campinas (UNICAMP), Brazil.

Eduardo Diogo Gurgel-Filho is a dentist (DDS) with a specialty in Endodontics at the State University of Rio de Janeiro (UERJ), Brazil. He holds a Master of Science in Dentistry with a focus on Endodontics from UERJ and a PhD in Endodontics from the State University of Campinas (UNICAMP), Brazil.

Dr. Norachai Wongkornchaowalit graduated from the Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand, in 2008. He subsequently completed a Master of Science in Endodontics in 2011 and a Higher Graduate Diploma in Endodontics in 2012, both from Chulalongkorn University. In the same year, he also received the Thai Board Certificate in Endodontics.

From 2011 to 2015, Dr. Wongkornchaowalit served as a full-time lecturer at Chulalongkorn University and has continued as a part-time lecturer since 2015. He currently serves on the board examination committee and is the secretary of both the Thai Endodontic Association and the Thai Board of Endodontics.

He has delivered numerous lectures and hands-on courses on root canal treatment nationwide, co-authored two endodontic textbooks, and contributed to academic publications.

His clinical interests include microscope-assisted root canal therapy, management of cracked teeth, non-surgical and surgical retreatment, and post-endodontic restoration.

Dr. Taratorn Soontornkiat is a diplomate of the Thai board of Endodontics (2000) and the American Board of endodontics (2004). She  currently works in private practice and serves as a part-time faculty member in the department of Conservative Dentistry and Prosthodontics, Faculty of dentistry Srinakharinwirot University and Department of Operative Dentistry and Endodontics, faculty of Dentistry, Mahidol University, Thailand.

Dr. Soontornkiat received her Graduate Diploma in Clinical Science (Endodontics) from Mahidol University (1992). She completed her Specialty Certificate in Endodontics (1997) and MSc. (1998) from University of Minnesota School of Dentistry. She was a past president of Thai Endodontic Society of Thailand (2010-2011).

Dr. Tadkamol Krongbaramee is a Diplomate of the American Board of Endodontics (2024). She currently serves as a full-time faculty member in the Department of Endodontics, Faculty of Dentistry, Chiang Mai University, Thailand, and is also the owner of a private dental practice in Chiang Mai, where she provides specialty care focused on root canal treatment. Dr. Krongbaramee earned her PhD in Oral Science (2021) and Specialty Certificate in Endodontics (2023) from the University of Iowa College of Dentistry, receiving advanced training in evidence-based endodontic therapy and translational oral science research.

Dr. Attawood Lertpimonchai is an Associate Professor in the Department of Periodontology at the Faculty of Dentistry, Chulalongkorn University in Bangkok, Thailand. He attended Chulalongkorn University where he received his D.D.S. in 2007 and his M.Sc. in Periodontics in 2011. He furthered his education at Mahidol University, earning a Ph.D. in Clinical Epidemiology and Biostatistics in 2017. Dr. Lertpimonchai has authored numerous publications in the field of periodontics and dental research, with recent work appearing in the Journal of Endodontics, Journal of Clinical Periodontology, and BMC Oral Health. His primary research interests include periodontal disease, periodontal medicine, epidemiology, and statistics.

Dr. Krell has been an endodontist for 44 years. He was a full time educator for 8 years at the University of Iowa and was in private practice in West Des Moines, Iowa for 29 years until he retired December 31,2017. In 1993, he retired from the United States Army National Guard as a lieutenant colonel after 22 years of service.  He was also an adjunct clinical Professor in the department of Endodontics at the University of Iowa, College of Dentistry until July 1, 2025 completing a 50 year career with the University of Iowa. He received the University of Iowa, Distinguished Service Alumni Award Sept 26, 2025. He is a past president of the American Association of Endodontist, and also a past president of both, the American Board of Endodontics and the Foundation for Endodontics.  He is a Diplomate of the American Board of Endodontics and is a both a Fellow in the American College of Dentists and in the International College of Dentists.

Dr. Krell has been married for 54 years to Diane and they have two grown children, and five grandchildren. He still has research interests in cracked teeth and vertical root fractures and has provided continuing education nationally and internationally for the past 40 years. He has played guitar for more than 50 years and has collected guitars for the past 30 years.

José Aranguren Cangas Dr. José Aranguren received his Doctor Of Dental Surgery Degree in 2000, from the Universidad Europea de Madrid(UEM), in Madrid, Spain. He has practicing exclusively Endodontics since 2000. Dr. Aranguren received his Specialty Certificated in Endodontics from the Southern Mississippi University (USM), Madrid. He has been involved in academics since 2003, and practicing exclusively Endodontics in Madrid, Spain. His major area of scientific research interest include the performance of nickel-titanium endodontic instruments, and Metalurgia. Dr. Aranguren is an internationally recognized lecturer; he is the author of numerous scientific papers published in peer-reviewed journals as well as dental magazines. And also coautor of the book “Microdentistry a practical guide”. (2014). Dr. Aranguren is Associate Professor of Endodontics at the University Rey Juan Carlos of Madrid and Professor of the Director of thr Postgraduate program in Advanced Endodontics at the Rey Juan Carlos University. Now he is also a Faculty member at the International Dental Institute (IDI) and International Endodontic Institute (IEI) in Fort Lauderdale and Palm Beach Gardens, Florida. He is the secretary of the Spanish Society of Endodontics, Member of the American Association of Endodontics and Member of the Carl Zeiss Dental Academy.