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Nebraska Dental Health Division
Educational Activities for Kids Fluoride Egg Experiment
This experiment demonstrates the effectiveness of fluoride by showing how fluoride strengthens the shell of an egg.
Materials needed:
1. Two eggs
2. Two large clear cups or beakers
3. Vinegar
4. School Fluoride Mouthrinse (or over the counter mouthrinse)
5. A pencil
Use the pencil to mark one of the eggs with an F. Soak the egg marked with an F in the fluoride rinse for at least 8 hours.
Place the fluoride soaked egg in a clear cup filled with vinegar. Place the untreated egg in another cup filled with vinegar.
Wait 4 minutes until the untreated egg begins to bubble. The breakdown in the surface of the egg is similar to the way acids in a person's mouth breakdown the surface of a tooth. The fluoridated egg is unaffected, the same way fluoridated teeth are unaffected by tooth decay.
Contact:
Nebraska Department of Health & Human Services
Office of Oral Health and Dentistry
(402) 471-0166
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