Staff Sgt. Gina Rosales, 28th Medical Operation Squadron dental laboratory technician, shapes a porcelain crown onto a patient’s dental impression at Ellsworth Air Force Base, S.D., Oct. 17, 2014.The lab supports the dental clinic by producing comfortable and accurate oral appliances for active-duty base personnel. (U.S. Air Force photo by Senior Airman Zachary Hada/Released)