Dr. Barnett received his DMD degree in 1978 and his Certificate in Endodontics in 1981, both from the University of Pennsylvania, School of Dental Medicine. He received his Board Certification in Endodontics in 1988, has served as the Director of Postdoctoral Endodontics at the University of Pennsylvania, and is currently the Chairman of the Department of Dental Medicine and Chairman and Program Director of the IB Bender Postdoctoral Endodontic Program at Albert Einstein Medical Center in Philadelphia.
Dr. Barnett has written numerous scientific and clinical papers and has lectured nationally and internationally on the Treatment of Endodontic Infections, Revascularization, Dental Trauma and Contemporary Endodontic Treatment. He currently serves on the Advisory Board of the Dental Traumatology Journal, is a Director of the International Association of Dental Traumatology and is an Associate Editor of the Journal of Endodontics. Dr. Barnett has also been in private practice in Endodontics from 1981-2011.