Tech. Sgt. Jennifer Barlow, 2nd Dental Squadron, uses a hand tool to flatten the surface of a night guard in the dental lab on Barksdale Air Force Base, La., Sept. 21. After a few passes with the hand tool, the night guard is placed on a cast of the wearer's teeth to ensure a proper fit. (U.S. Air Force photo/Airman 1st Class Micaiah Anthony)(RELEASED)
Tech. Sgt. Jennifer Barlow, 2nd Dental Squadron, uses a hand tool to flatten the surface of a night guard in the dental lab on Barksdale Air Force Base, La., Sept. 21. Night guards are used to protect teeth from grinding against each other while the wearer sleeps. (U.S. Air Force photo/Airman 1st Class Micaiah Anthony)(RELEASED)