Rebecca Arnold, preschool student in the base’s Child Development Center class 134, uses an oversized toothbrush to show her classmates how she brushes her teeth at Ellsworth Air Force Base, S.D., Feb. 6, 2014. To promote National Children’s Dental Health Month, Capt. Cory Peterson, 28th Medical Operations Squadron dentist, and his staff visited with children in the CDC and demonstrated how they can maintain healthy teeth and gums. (U.S. Air Force photo by Senior Airman Anania Tekurio/Released)