Radi Masri, D.D.S., M.S., Ph.D., is tenured associate professor, Department of Endodontics, Prosthodontics, and Operative Dentistry, School of Dentistry, and associate professor, Department of Anatomy and Neurobiology, School of Medicine, University of Maryland, Baltimore. Carl F. Driscoll, D.M.D., is tenured professor and director, Prosthodontic Residency, Department of Endodontics, Prosthodontics and Operative Dentistry, School of Dentistry, University of Maryland, Baltimore.