John F. Kross, DMD, MSc, received his doctor of dental medicine degree from Temple University School of Dentistry in Philadelphia, PA. He completed a fellowship at Temple University Hospital in oral oncology and received a hospital appointment to the Department of Dentistry at the Medical Centers of Delaware (now the Christiana Health Care System). His professional training and experience includes practicing general dentistry in Wilmington, DE, and New London, PA, as well as instructing students at Delaware Technical Community College in oral pathology. He has been composing monographs, creating manuscripts, and contributing to continuing dental education since 1991. Dr. Kross has received numerous academic awards for his work in oral surgery, fixed partial prosthodontics, periodontics, and endodontics. He has been composing monographs, manuscripts, and continuing dental courses since 1991.