Maj. Brent Waldman, 628th Medical Group Dental Clinic general dentist, and Army Capt. Cynthia Fallness, Joint Base Charleston Veterinary Clinic officer in charge, review Shark’s X-Rays before a root canal and teeth cleaning Feb. 20, 2013, at JB Charleston – Air Base, S.C. Shark is a Military Working Dog assigned to the 628th Security Forces Squadron and works on both the Air Base and Weapons Station at JB Charleston. (U.S. Air Force photo/ Senior Airman Dennis Sloan)