Tech. Sgt. Brian Arendes, a dental laboratory technician with the 75th Dental Squadron at Hill Air Force Base, Utah, pours liquid acrylic into a mold, at Diamond Secondary School in Georgetown, Guyana, Aug. 25. Airmen from Hill are participating in the third and final dental rotation for New Horizons Guyana 2009. (U.S. Air Force photo/Airman 1st Class Perry Aston)