Lt. Col. (Dr.) Darryl Bybee, a dentist with the 75th Dental Squadron at Hill Air Force Base, Utah, and Staff Sgt. Joseph Lee, a dental technician from the 47th Medical Operations Squadron at Laughlin Air Force Base, Texas, perform a filling on a Guyanese woman at the Diamond Secondary School in Diamond, Guyana, Aug. 24. Colonel Bybee spent 31 years in his own private practice before joining the Air Force through direct commission. (U.S. Air Force photo/Airman 1st Class Perry Aston)