Announcer: Every day at Crest, we get letters from kids asking about teeth. 

- Grandma! Grandma, hey, grandma, Crest answered my letter! 

- I told you they would. 

- I'm gonna know more about teeth than anybody in my school. See these? They're incisors, that's what it says in my letter. 

Grandma: That must be then. 

- They're for cutting. 

Grandma: Is that so? 

- And you know how many teeth you have? 

- How many teeth do I have? 

- This says kids my age have 20. But when I get older, I'm going to have 32! 

- You will if you take care of them. 

- Well, Crest has fluoride. That's the best thing for teeth. 

- If you brush. 

Boy: Sure I will! 

Announcer: Write to Crest, Cincinnati, Ohio if you or your kids would like to know more about teeth. After all, the more you know about teeth, the more you'll appreciate Crest. 

- On the top, I brush back and forth. On the bottom, I wiggle it. 

- You certainly are a smart one. 

Announcer: Crest is accepted by the American Dental Association. We're working to make cavities a thing of the past.