- Mom, Mom, guess what. Hi, that's me, Leigh Bergren, eight years ago after a test that proved Crest reduces cavities more than the same toothpaste without Crest fluoride. Today, I'm Mrs. Gary Kleinert. I learned something back then. Chris with fluoride really works. That's why I insist we brush with it. 

- Mom, Mom, guess what? 

Spokesperson: Fighting cavities is the whole idea behind Crest, always will be.