R.F. John Holtzen, DMD, is a board-certified oral and maxillofacial surgeon with private practices in Missoula, Montana, and Las Vegas, Nevada. He is a graduate of Temple University School of Dentistry, and completed internship and residency programs at Johns Hopkins University, St. John’s Mercy Medical Center, and MCP-Hahnemann University Medical Centers. He is a previous associate clinical professor at the University of Nevada School of Medicine and has lectured on a variety of topics related to his specialty. Dr. Holtzen is a diplomate of the American Board of Oral and Maxillofacial Surgeons, a diplomate of the American Board of Dental Anesthesiology, and a fellow of the International Association of Oral and Maxillofacial Surgeons.