20th Dental Squadron ensures clean and healthy smiles at Shaw
Staff Sgt. Tonya Collett, 20th Dental Squadron dental technician, uses an ultrasonic tool, called a cavitron, to clean the teeth of Senior Airman Colin Casey, 20th DS lab technician, at Shaw Air Force Base, S.C., Sept. 30, 2013. A cavitron uses water vibrations to break apart plaque. (U. S. Air Force photo by Airman 1st Class Krystal M. Jeffers/Released)