U.S. Air Force Staff Sgt. Crystal Rucker, a dental technician with the 509th Medical Operations Squadron, rinses out the trap of a dental chair Feb. 4, 2013, at Whiteman Air Force Base, Mo. The trap was used to catch large pieces of debris from a patient's mouth during a dental cleaning. (U.S. Air Force photo by Staff Sgt. Nick Wilson/Released)
Staff Sgt. Nicholas Wilson
Taken on 4 February 2013
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