Come on, Army! I could have told you that!
http://www.cnn.com/2005/US/11/11/army.gum.ap/index.html
The U.S. Army is considering producing an anti-bacterial gum as a more convenient means of cleaning soldiers' teeth in war conditions. Chewing gum instead of brushing your teeth? Sounds like a day in the life of a college student like me. Oh, and there's also the tried and true technique of taking a swig of Listerine before you walk out the door to classes and then just spit out the blue liquid on the way, with people looking at you and wondering...