Petty Officer 3rd Class Sarah L. Hall explains why dentists wear gloves to students from a second-grade class at Zukeran Elementary School during Children's Dental Health Month on Camp Foster Feb. 7. Hall was a member of a group of volunteers that visit elementary schools during the month to inform the children about proper oral hygiene. Hall is a hospital corpsman with 3rd Dental Battalion, 3rd Marine Logistics Group, III Marine Expeditionary Force. (U.S. Marine Corps photo by Lance Cpl. David N. Hersey/Released)