Salvadoran Dentist Dr. Sylvia Rivas and Spc. Corina-Joy Zdroid clean a young boy’s teeth at the U.S. clinic in San Vicente, El Salvador, May 31, 2011. The clinic treated over 1,000 patients and gave fluouride treatments to more than 500 school children. (photo by Maj. Matt Lawrence, 807th MDSC Public Affairs)