Dr. Retrum graduated from Temple University's Kornberg School of Dentistry in 2015 and spent 11 years on active duty as a U.S. Army dentist. In 2023 he graduated from the Army Periodontics program with an M.S. in Oral Biology, then served as Chief of Periodontics at Fort Riley until the summer of 2026 — when he returned to civilian practice as the owner of Greenfield Periodontics and Implant Dentistry.