All Science Fair Projects

Over 1000 FREE Science Fair Project Ideas!

Bacteria and toothpasteFeatured science projectScience project video

Conclusion

Our hypothesis, that the amount of bacteria in the mouth will be reduced after brushing one's teeth with toothpaste, is proven to be true.

Toothpaste and proper brushing techniques are important for dental hygiene and keeping our teeth strong and healthy. Toothpaste is used not only for killing bacteria and preventing tooth decay, but also for teeth whitening and preventing bad breath.

Also consider

This science fair project may be repeated, this time, with swab sample from different locations in the mouth like the tongue.

Modify the science project experiment, using different brands of mouthwash.

References

How does toothpaste clean your teeth? - http://www.ehow.com/about_4596423_toothpaste-clean-teeth.html

Toothpaste - http://www.dentalgentlecare.com/toothpaste.htm

See our all-time most popular science projects
Search science fair projects Browse science fair projects
popular science fair projects
Complexity level:
8
Project cost ($):
20
Time required:
1 hour to prepare, 4 days for science fair project
Material availability:
Easily found
Safety concerns:

The bacteria should be destroyed before being disposed of. Pour some bleach into the petri dish to kill all the bacteria before disposal.