Mouth guard
U.S. Air Force Senior Airman Tarell Walker, 355th Medical Group dental laboratory technician, smooths out the edges of a mouth guard at Davis-Monthan Air Force Base, Ariz., Oct. 24, 2013. New findings in sports dentistry show that even non-contact sports such as skateboarding, gymnastics, and biking could cause potential injury to the mouth. (U.S. Air Force Senior Airman Sivan Veazie/Released)