Air Force Tech. Sgt. Nathanael Merrill, 39th Medical Operations Squadron NCO in charge of the dental lab, prepares a Scheu-Dental Biostar pressure molding device at Incirlik Air Base, Turkey, June 8, 2018. Merrill created a custom mouth guard by sealing a dental impression with a soft plastic, which is first warmed to better fit the impression, resulting in a more comfortable fit for the wearer.

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Photo credit: © PR Library / Alamy / Afripics
License: Licensed
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