P&G: Crest Toothpaste, 1980s
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| (bouncy upbeat music) | 0:00 | |
| Narrator | Eggshells, like teeth, | 0:01 |
| must retain calcium to stay strong. | 0:03 | |
| (words fluttering) | 0:05 | |
| To demonstrate how Crest's formula protects teeth, | 0:06 | |
| we treated half this egg with regular Crest, | 0:09 | |
| the other half without. | 0:11 | |
| The egg is exposed to a weak acid solution, | 0:12 | |
| similar to that which causes cavities. | 0:14 | |
| (gently chiming bells) | 0:16 | |
| Crest's side remains hard, having locked in the calcium. | 0:18 | |
| The other side is weak, having lost its calcium. | 0:21 | |
| The egg test shows it. | 0:25 | |
| Crest locks in calcium to help lock out cavities. | 0:26 |
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