*Ask an adult to help you with this.
AN EXPERIMENT TO SHOW HOW FLUORIDE TOOTHPASTE CAN PROTECT YOUR TEETH
Equipment
A hard boiled egg
A permanent ink felt tip pen
An egg cup
A tube of fluoride toothpaste
A bottle of vinegar
A beaker or a bowl
Tissues or paper towels
Method
1. Fill an egg cup with fluoride toothpaste
2. Put the egg in the egg cup and squash it down !
3. Using the permanent ink felt tip pen , draw a line around the egg marking where the fluoride comes up to.
4. Put a large letter X half of the egg not in the egg cup
5. Leave for 24 hours
6. Take the egg out of the egg cup and wash gently in cold water
7. Put the egg in a beaker or bowl of vinegar
8. Note which side of the egg fizzes the most , the side with the X or the side that was in the fluoride toothpaste.
Results
| Amount of Fizz | |
| Side X ( no fluoride toothpaste) | |
| Egg cup side ( With fluoride toothpaste) |
Discussion
The vinegar is an acid like the acids which are produced in your mouth when you eat and drink. It is this acid which causes your teeth to decay or 'go bad'.
Conclusion
Do you think brushing with a fluoride toothpaste after meals will help to stop your teeth decaying ? IF you were a dentist what would you tell people to do ?
Harbour Dental Practice Telephone 01270 762186
