- Mom, Momma, look, Mom, no cavities. - No new cavities? Wow, wonderful. - That's amazing. I guess this Crest toothpaste really works. Narrator: Yes, Crest really works for grownups and children, right down to your very youngest because only Crest has fluoristan, a special fluoride formula. Fluoride, you know, is the decay fighter dentist use, the decay fighter dentist put on teeth to prevent cavities. With Crest, you put the same fluoride on your teeth at home, too, every time you brush. That's why Crest can cut your families cavity rate almost in half. Yes, when you switch to Crest with fluoride, you can prevent about half your families cavities and for stopping mouth odor, no toothpaste beats Crest. So switch to Crest, you too may hear, - Mom, Momma, look, Mom, no cavities.