Dr. Rubenstein is a world leader in microsurgical endodontic techniques. He co-authored a book Color Atlas of Microsurgery in Endodontics wherein it introduces advancements to the dental community in the book. This atlas showcases the most recent advances in microsurgical techniques and instrumentation, in a full-color reference format with 380 brilliant illustrations. Current topics include a comparison of traditional surgery and microsurgery in endodontics, microsurgical instruments, operation of the microscope, soft tissue management, and retropreparation. The book includes actual case histories. Dr. Rubenstein works at the University of Pennsylvania Philadelphia, Pennsylvania School of Dentistry in the department of Endodontics.