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Which kinds of drink stain teeth?

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by

Emma Opara

on 16 January 2014

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Transcript of Which kinds of drink stain teeth?

Question:

Background Info
Procedure
1. Fill three separate large containers with coffee, tea, and cola.
2. Put at least one hollowed-out eggshell into each container.
3. Every day, fish them out and observe the progress of discoloration.
4. Take some photos of gradual changes. On the day when you really start to notice discoloration, note that day.
5. Record your results and compare the effects of the three liquids.
Conclusion
My hypothesis was correct, the coke was the dirtiest because of it's coloring and so much sugar and caffeine in it. So Coke could really be bad for your teeth, don't drink it all the time.
WHICH
KINDS OF
DRINKS STAIN
YOUR TEETH
My question is that, how long it takes to stain egg shells with coffee, tea, and cola.
Stained Teeth
Hypothesis
I think that the Coke will make the
egg dirtiest because it has more
caffeine and coloring.
Or?
Teeth are structures in the mouth that are individually squares or cubical-shaped with grooves intended for use in breaking down food for consumption. Teeth are naturally white or off-white in color, but build-up from foods and drinks such as coffee and tea over time can stain the white color and turn teeth yellowish and discolored. In this experiment, we'll use egg shells in order to explore how teeth are stained by drinking coffee, tea, and cola.
Materials
Tea
Coke/Cola
Coffee
Three large plastic containers
Eggs
Results
Day #1
(1 hour)
Day #2
(2 hours)
Day #3
(3 hours)
Coffee
Tea
Coke
Little Dirty
Really Dirty
Dirty
Proof
1st hour -
tea
coffee
coke
2nd hour -
Slightly Dirty
Stayed the same
Stayed the same
3rd hour -
Little Less Dirty
Very Dirty
Very Dirty
Full transcript