About Dr. Nasseh

Allen Ali Nasseh, DDS., MMSc. – Endodontist

Allen Ali Nasseh3Dr. Ali Allen Nasseh is the founder of MicroSurgical Endodontics (MSEndo), and a practicing endodontist in Boston, MA. He is an active member of several organizations including, but not limited to the American Dental Association (ADA), the American Association of Endodontists (AAE), the Massachusetts Dental Society (MDS), Massachusetts Association of Endodontists (MAE), and the Boston Metropolitan Dental Society (BMDS).

Dr. Nasseh has been an active faculty and a clinical instructor at the Department of Restorative Dentistry and Biomaterial Sciences / Postdoctoral Endodontic division of Harvard School of Dental Medicine since 1994. He was also an Assistant Professor in the postdoctoral clinic, department of Endodontics at Tufts School of Dental Medicine until 2006.

Dr. Nasseh is a national and international speaker and lectures actively in such areas as surgical and non-surgical root canal therapy, technological advances in endodontics/dentistry, and principals of patient care and anesthesia for a painless dental experience. Dr. Nasseh’s practice philosophy is providing the most gentle, caring, and positive root canal experience by offering the highest quality of care using the latest technological advances in the dental field. He believes that root canal therapy should never be a painful experience and lectures extensively on the patients’ right to a gentle, comfortable, and completely painless experience.

Dr. Nasseh’s practice, MicroSurgical Endodotics (607 Boylston Street) is also an educational institute where he gives advanced training to dentists across the nation and around the world in root canal therapy and microsurgery. He teaches at the postdoctoral level at Harvard Dental School and is a former instructor and lecturer in the Head and Neck Anatomy course at Harvard Medical School.

Endodontist in Boston, MA

Following graduation from Northwestern University Dental School in Chicago/IL, Dr. Nasseh completed a three year specialty fellowship in Endodontics at Harvard School of Dental Medicine graduating with a Masters in Medical Sciences (MMSc.) in the area of Bone Physiology. He completed three years of research at Boston’s Children’s Hospital Orthopedic Laboratory during 1994-1997. Dr. Nasseh is currently the clinical director to Real World Endo educational seminars, the Endodontic Adviser to The Seattle Study Club (SSC), the president of Harvard Endodontic Alumni Association (HEAA), and the editor of the Harvard Dental School Alumni Bulletin.

Dr. Nasseh has been in clinical practice for over fifteen years and has performed over twelve thousand non-surgical root canals and thousands of surgical root canal procedures. His extensive experience and his friendly, kind, and caring bedside manner has made him very popular with his patients who come in from far away with a very negative impression of root canal therapy and leave with a new understanding of this procedure. Dr. Nasseh’s goal is to debunk the myth of root canal therapy being a painful procedure and create a new understanding for this procedure among his patients and other dentists.

His personal promise to you is that you will be treated with warmth, empathy and respect while in his care, receive the highest quality of care from him and his staff, and experience no discomfort while in his care and  during the procedure in his office.

Dr. Mario E. Abdennour, D.M.D. ,M.M.Sc

DrAbdennourDr. Abdennour is a graduate of Washington University School of Dental Medicine where he received the Doctor of Dental Medicine degree in 1989 with an “outstanding clinical ability” award. Following his dental degree he attended a post-graduate general practice residency at a University of Southern California affiliated hospital in California, graduating in 1990. He practiced dentistry in California for a total of eight years. In 1997 he entered the Advanced Graduate Endodontic Program at Harvard University School of Dental Medicine, receiving his Specialty certificate in Endodontics as well as a Master in Medical Sciences in Oral Biology.

During his specialty program he also trained in Surgical Endodontics at the Karl Franz University Hospital in Austria. Upon graduation from Harvard he was the single recipient of the Krakow award for clinical proficiency in Endodontics. Dr. Abdennour also conducted Endodontic research at the Forsyth Dental institute in Boston which has resulted in a patent application for an endodontic therapeutic agent.

Dr. Abdennour currently holds a faculty appointment as a clinical instructor at the Advanced Graduate Endodontic Program at Harvard School of Dental Medicine where he teaches as a part time basis surgical and non-surgical Endodontics. He has lectured Harvard Dental students annually and at a local component of State Dental Societies in the areas of Endodontic surgery and non-vital intracoronal bleaching.

Dr Abdennour is a member of the American Association of Endodontists, the American Dental Association and the Massachusetts Dental Society. He was the past president of the the Greater Salem Dental Society in New Hampshire and is the the current chairman of the Merrimack Valley District Dental Society.

Dr. Joseph Carew, D.M.D.

DrJoeCarew Dr. Joseph Carew is a graduate of Tufts University School of Dental Medicine, where he received his Doctor of Dental Medicine degree in 1990. After practicing general dentistry for a few years, Dr. Carew entered the Advanced Graduate Endodontic Program at Temple University School of Dental Medicine, where he graduated with a specialty certificate in Endodontics in 1995. Following graduation, he joined a speciality group practice in the South Shore area of Boston where he continues to practice today. Dr. Carew joined MicroSurgicalEndodontics in 2013 where he provides non-surgical and surgical endodontic services.

Dr. Meghan Cooper, D.M.D.

Dr Meghan Cooper Dr. Meghan Cooper graduated Cum Laude with her Doctorate of Dental Medicine from Harvard School of Dental Medicine. She further completed both a Certificate in Endodontics, a three-year specialty fellowship, and a Masters of Medical Sciences in Oral Biology from Harvard School of Dental Medicine. Her field of clinical expertise includes conventional root canal treatment, retreatment, and surgical endodontic care.

Dr. Cooper stays abreast of technological advances in endodontics, including the latest techniques in instrumentation, use of a surgical operating microscope, digital radiography, and 3D imaging. Her treatment philosophy is to listen and take care of the patients’ needs as the first and foremost. She prioritizes a warm, welcoming environment followed by gentle, painless dentistry. Her patients leave with positive feelings towards root canal therapy.


She has served as Clinical Instructor in Endodontics at Harvard School of Dental Medicine. Additionally, she has completed an externship at Children’s Hospital of Boston, where she received extensive training in endodontics for the pediatric patient.

Dr. Cooper is a published author in the Journal of Experimental Biology, and has presented primary research at both national and international conferences including the American Association of Endodontics and the International Society for Quality in Healthcare. She is a faculty member of Real World Endo, which provides educational seminars in endodontics to dental professionals.

Dr. Cooper is a member of the American Association of Endodontics (AAE), Omicron Kappa Upsilon (OKU) National Dental Honor Society, Massachusetts Dental Society (MDS), and American Dental Association (ADA).