Dr Floratos received his DMD from the University of Thessaloniki School of Dentistry in Greece in 2001. He received a Certificate in Endodontics at the University of Pennsylvania School of Dental Medicine in 2009. Since 2009, he holds an Adjunct Assistant Professor appointment at the Endodontic Department of University of Pennsylvania. He is a retired Commander of the Greek Navy and former Director of the Endodontic Department of the Athens Naval Hospital in Greece. Dr Floratos is the author of three chapters in Professor Kim & Kratchman’s textbook ‘Microsurgery in Endodontics’ published in 2018 and one chapter in Professor Tsesis’ ‘Endodontic – Periodontal Lesions’ textbook published in 2019. He has presented in endodontic meetings in USA and Europe and has published in national and international endodontic journals.

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.

Martin J. Rogers, DDS, is a full-time endodontist in private practice at Best Endodontics of Glenview and is an Assistant Clinical Professor in the Department of Endodontics at the University of Illinois Chicago (UIC). He earned his DDS from UIC in 1992, completed a General Practice Residency at Illinois Masonic Medical Center-serving as chief resident the following year-and received his Certificate in Endodontics from UIC in 1996.Dr. Rogers has held a part-time faculty appointment at UIC since graduation and currently serves as course director for Endodontic Microsurgery in the postgraduate program. His academic interests include local anesthesia and pain control, microsurgical techniques, and rotary instrumentation. He has authored peer-reviewed publications and lectures frequently to professional audiences.He is a past president of both the Illinois Association of Endodontists and the Edgar D. Coolidge Endodontic Study Club. He has served the American Association of Endodontists on multiple committees, including Dental Benefits, Membership Services, Clinical Practice, and Public and Professional Affairs.

Dr. Niemczyk graduated from the University of Pennsylvania School of Dental Medicine, receiving his D.M.D. in 1982 and his postgraduate Endodontic certificate in 1984. Since 1995, Dr. Niemczyk has been the Director of Endodontic Microsurgery at the IB Bender Postdoctoral Endodontic Program at Albert Einstein Medical Center in Philadelphia, and was recently named the Assistant Program Director in 2018. He is the 2020 recipient of the AAE Calvin D. Torneck Part-Time Educator Award, and also serves as a surgical consultant to the Naval Postgraduate Endodontic Program at the Walter Reed National Medical Center in Bethesda, MD, and the U. S. Army Endodontic Residency Program in Fort Gordon, GA. 
Dr. Niemczyk has lectured extensively in the U.S., Central America, Europe, the Middle East and Asia on topics ranging from Microsurgery and Intentional Replantation to advances in Non-Surgical Endodontics and Cone-Beam CT. He has authored numerous papers, chapters on Microsurgery in Dental Clinics of North America, Ingle’s Endodontics 7th Edition and CBCT in Non-Surgical Retreatment. He is a member of the Scientific Advisory Board for the Journal of Endodontics and the Journal of Oral and Maxillofacial Surgery, Medicine and Pathology. He is the founder of Endodontic Microsurgical Innovations, dedicated to the development of new treatment techniques and instrumentation. He is a Diplomate of the American Board of Endodontics, and maintains a full-time practice limited to Endodontics in Drexel Hill, PA.

Dr. Elinor Alon received her D.M.D. from the Hebrew University School of Dental Medicine in Jerusalem, Israel in 2008 and continued her training as a general dentist in their Advanced General Practice Program. In 2014, Dr. Alon completed her Certificate in Endodontics at the Hebrew University School of Dental Medicine. After relocating to the United States, Dr. Alon joined the faculty in the Department of Endodontics at the Tufts University School of Dental Medicine in 2015 where she taught undergraduate dental students as well as in the post graduate program. Dr. Alon graduated from the Faculty IS program and proudly holds a D.M.D. diploma from the Tufts University School of Dental medicine. At Tufts, she worked as the director of the Pre-doctoral Endodontic Program, before being promoted to Director of the Postdoctoral Endodontic Program where she trained the next generation of endodontic specialists. She is also a diplomate of the American Board of Endodontics. While teaching at Tufts, Dr. Alon worked in private practice outside of Boston before moving to Connecticut in 2023 to join the Advanced Endodontics of Connecticut team. She has already been recognized as a "Best Endodontist" in Connecticut by a poll of her peers published in Connecticut Magazine. In her spare time, Dr. Alon enjoys pilates, yoga, hiking, spending time with friends and family, and eating good food.

Dr. Devon Ptak is a board-certified endodontist dedicated to providing compassionate, individualized, and evidence-based care. She is currently in private practice in Massachusetts and New Hampshire. Dr. Ptak earned her Bachelor of Science (BS) from Purdue University, a Master of Public Health (MPH) from Dartmouth College, and a Doctor of Dental Medicine (DMD) from Tufts University School of Dental Medicine. She completed her specialty training in Endodontics at Tufts, where she earned a Certificate in Endodontics. An active member of several professional organizations, including the American Association of Endodontists (AAE), the Massachusetts Association of Endodontists (MAE), and the American Dental Association (ADA), Dr. Ptak is committed to advancing the field of endodontics. She also serves as a part-time faculty member at Tufts University School of Dental Medicine, where she teaches and mentors residents and dental students. Additionally, she oversees endodontic residents' research projects, contributing to the academic and clinical development of future specialists. Dr. Ptak's research has been published in several dental journals, including the Journal of Endodontics.

Rizos Tzourmanas is an endodontist currently working in private practice in Ghent, Belgium. He received his dental degree from the National and Kapodistrian University of Athens and subsequently completed a three-year postgraduate specialization program in endodontics at the University of Ghent, graduating in 2020. His clinical interests are focused on endodontic microsurgery, with particular emphasis on soft tissue management, as well as on the integration of laser technology into daily practice to promote more minimally invasive approaches in endodontics.

Dr. Thanos Fasoulas is a practicing endodontist based in Amsterdam, the Netherlands. He earned his DDS from Aristotle University of Thessaloniki, Greece in 2014, and completed a three-year postgraduate residency in endodontics at the University of Ghent, Belgium in 2021. Dr. Fasoulas currently works in private practice with a clinical focus on endodontic microsurgery and implant dentistry.

Andrew earned his Doctorate of Dental Medicine from Boston University Henry M. Goldman School of Dental Medicine in 2017. He has since served six years in the US Navy Dental Corps. His tours included: his AEGD at Naval Medical Center Portsmouth, served as the Dental Department Head on USS MESA VERDE and USS CARTER HALL, and Naval Health Clinic New England. Currently, he is in his third year at the University of Pennsylvania School of Dental Medicine's Advanced Dental program in Endodontics, where he is also pursuing his Master of Science in Oral Biology. His research on Leukocyte and Platelet Rich Fibrin is the focus of his Master's Thesis and will briefly be discussed in this presentation. He was the recipient of the prestigious Louis I. Grossman award for the Class of 2025, being recognized for embodying excellence in Endodontics, exuding confidence and enthusiasm as a clinician, possessing a solid moral compass, and showing a strong promise of becoming a future leader in the field.

Dr. Sam Kratchman was born and raised in New York. He received both a B.S. in Biology and a D.M.D. from Tufts University in Boston. Sam then entered The University of Pennsylvania, where he received a Certificate of Endodontics.

A prominent leader in his field, Dr. Kratchman currently teaches at U. Penn as an Associate Professor of Endodontics, and he is the Assistant Director of Graduate Endodontics, in charge of the microsurgical portion of the program. He frequently lectures on several Endodontic topics throughout the United States, Europe, South America, Canada and Asia.

Dr. Kratchman has authored several articles and chapters on Endodontics, and has co-authored the textbook of Endodontic Microsurgery with Dr. Kim in 2017. He also developed a patented instrument called the S Kondenser for the obturation of root canals. Both Main Line Today and Doctor of Dentistry magazines honored Dr. Kratchman as the cover story for their "Best of" issues.

Dr. Felipe Restrepo, was born and raised in Medellín - Colombia. Graduated from the Universidad de Antioquia with a degree in Dentistry, after one year as general practicioner he entered a two year Endodontic program and graduated from Universidad CES. Associate Professor at the Universidad de Antioquia teaching their postgraduate level students in endodontics and also Director of the Endodontics Posgraduate Program. Dr. Restrepo has authored several scientific articles in peer-reviewed journals. Former president of the Antioquian Association of Endodontists. Private practice limited to Endodontics and Endodontic Microsurgery in Medellín. He can be reached at [email protected].

Dr. Thanos Fasoulas is a practicing endodontist based in Amsterdam, the Netherlands. He earned his DDS from Aristotle University of Thessaloniki, Greece in 2014, and completed a three-year postgraduate residency in endodontics at the University of Ghent, Belgium in 2021. Dr. Fasoulas currently works in private practice with a clinical focus on endodontic microsurgery and implant dentistry.

Mario E. Abdennour, DMD, MMSc, FICD Dr. Abdennour received his Doctor of Dental Medicine degree in 1989 from Washington University School of Dental Medicine where he received the “Outstanding Clinical Ability” award. Following his dental degree, he attended a postgraduate general practice residency at a U.S.C. affiliated hospital in California. In 2000 he received his specialty certificate in endodontics, as well as a Master in Medical Sciences in Oral Biology from the Advanced Graduate Endodontic Program at Harvard University School of Dental Medicine. During his specialty program he also trained in surgical endodontics at the Karl Franz University Hospital in Austria. Upon graduation from Harvard, he received the Krakow Award for Clinical Proficiency in Endodontics. In addition, Dr. Abdennour has conducted endodontic research at the Forsyth Dental Institute in Boston contributing to the patent of an Endodontic Intra-canal therapeutic agent. As a co-inventor, he holds a patent for an endodontic PPE dental and ophthalmic microscope barrier. He lectures nationally and internationally in English, French and Spanish at state dental meetings, conventions, dental schools and endodontic programs also demonstrating live endodontic surgery. Since 2000, Dr. Abdennour has held a faculty appointment as a clinical instructor/lecturer at the Advanced Graduate Endodontic Program at Harvard where he teaches micro-surgical and non-surgical endodontics. Dr. Abdennour has been the President and Chairman of two component Dental Societies in New England. Dr. Abdennour is Past President of the Massachusetts Association of Endodontists.. He was recently the recipient of an esteemed part-time faculty award from Harvard University's Department of Restorative Dentistry and Biomaterials Sciences. Dr. Abdennour enjoys traveling, international cuisine, reading history and spending time outdoors with his family.