Lt. Matthew Dart, left, a dental officer assigned to Naval Mobile Construction Battalion (NMCB) 7, and Hospital Corpsman Mark Lunde replace a filling at a forward operating base.

HELMAND PROVINCE, Afghanistan (Feb. 09, 2009) Lt. Matthew Dart, left, a dental officer assigned to Naval Mobile Construction Battalion (NMCB) 7, and Hospital Corpsman Mark Lunde replace a filling at a forward operating base. NMCB-7 is deployed to Afghanistan providing contingency construction support to NATO Alliance forces supporting NATO International Security Assistance Force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael B. Lavender) File# 090209-N-1120L-066