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General Medicine & Health Science Fair Project

Cleaning Teeth: A Science Project

Cleaning Teeth: A Science Project | Science Fair Projects | STEM Projects
Let's find out which cleaning agent is the most effective for removing stains from teeth. We'll test different substances and see which one works best.


The hypothesis is that baking soda, salt, hydrogen peroxide, and water will be the best stain remover.

Method & Materials

You will soak and stain 60 tiles for 2 days, then clean each tile with five different cleaning agents.
You will need Crest, Rembrandt, Mentadent, baking soda, salt, hydrogen peroxide, water, glycerin, and wintergreen.


The results showed that Rembrandt was the most effective stain remover, although it was the most expensive. Formula #1 was very inexpensive, but it did not clean teeth as well as Rembrandt.

Why do this project?

This science project is interesting because it tests different cleaning agents to see which one is the most effective for removing stains from teeth.

Also Consider

Variations to consider include testing different types of toothpaste, or testing different types of stain removers.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!
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