Lt. Gen. Dorothy Hogg, U.S. Air Force Surgeon General, looks over work done by Staff Sgt. Samuel Pennell, 21st Operational Medical Readiness Squadron dental laboratory technician, at the Area Dental Laboratory on Peterson Air Force Base, Colorado, Nov. 1, 2019. The Peterson dental lab creates night guards, retainers, and dental implants for members across the Air Force. (U.S. Air Force photo by Airman Alexis Christian)