Allen Ali Nasseh, DDS, MMSc, is an endodontist practicing in Boston, Massachusetts. He holds a part-time staff position at the Harvard School of Dental Medicine postdoctoral endodontic program and is editor of the Harvard Dental Bulletin. A graduate of Northwestern University in Chicago, he received his postdoctoral training in endodontics from Harvard School of Dental Medicine, where he also completed a masters in medical degree in the area of bone physiology. He is the clinical director of Real World Endo and lectures extensively in surgical and nonsurgical aspects of endodontic therapy. He is also a director of MicroSurgical Endodontics, an educational center for hands-on training in surgical and nonsurgical endodontics.