(boy laughing) (boy shouting playfully) 

- Meet David Bentley and meet David's mother, who knows something you should know about fighting cavities. 

- That's one thing I learned in college, I was part of a toothpaste test for two years, and my group had 34% fewer cavities with Crest. 

- The other group used the same toothpaste, but without Fluoristan. 

- Yeah, and everybody brushed the same as always. 

- So, Crest made the difference in the number of cavities. Crest, the only toothpaste. 

- Group had 34% fewer cavities with Crest.