- Mrs Hugh Arey of Lake Minnetonka, Minnesota asks: 

- We realize dental authorities are concerned about people's dental health. So we'd like to know exactly what's meant when we hear Crest is recognized effective against cavity. 

- Well, because the answer is so important. We've asked Mr And Mrs Arey here to learn the facts along with you. Now you ask what "recognized effective" means. 

- Right. 

- Well, dental authorities certainly aren't telling you to use Crest. That's up to you. Let's look at what they are saying. The exact words of the American Dental Association's Council on Dental Therapeutics: Crest has been shown to be an effective decay preventive benefits that can be of significant value when used in a conscientiously applied program of oral hygiene and regular professional care. 

- I see. But why is Crest the only toothpaste recognized effective against cavity? 

- Because only Crest has the kind of proof dental authorities recognize. 

- What kind of proof is that? 

- Let me show you what kind. Living proof based on eight years of tests against regular toothpaste. Tests conducted in homes like yours, tests with school children, young adults, people much like members of your own family. 

- It sounds complicated. What did they have to do? 

- Oh, nothing special. Half used crest, the others, regular toothpaste, and everyone brushed at home as usual. 

- And that's all? 

- That's right. 

- And then what happened? 

- Well in this test, for example, there were 34% fewer cavities with Crest after two years. And this one, 36% fewer cavities with Crest after one year and so on. 

- So that's why Crest is recognized effective. 

- Yes. Recognized effective in a good dental program. That's important. Have checkups twice a year. Wash between meal treats and brush often with Crest. Crest, the only toothpaste with fluoristan, proved effective against cavities in homes like yours.