1. Choose a problem.
(What do you want to explore? Ask a question about it.) * Choose something that interests you. * Choose something that you don't know the answer to. * Choose something you can work with.
Which soda decays fallen out teeth the most?
2. Research the problem.
(How can you find the answer to your question?) * Look in books. * Get advice. * Make observations.
If you take your teeth, put them in a glass, pour soda over them and let them stand for days (or was it weeks...?), it will dissolve away the teeth. I saw a science project on it. Some kid actually acquired some used teeth and did the experiment for a science fair. I believe the clear drinks were the worst, but I don't really remember.
So, I strongly recommend not soaking your teeth in (what amounts to) sugar saturated carbonic acid (i.e. soda pop).
If, on the other hand, you take your teeth, pour soda over them momentarily then rinse immediately with a buffered, mineral-rich solution like, maybe, fresh saliva - you could probably do that daily for a lot of years before affecting any measurable reduction in tooth enamel.
By the way, lots of food are acidic. Many are more acidic than soda. I think anything tomato-sauce based qualifies, for example. (Tomato-based foods are also very effective for cleaning oxidized copper, by the way.)
I have never actually heard of a case of enamel loss due to drinking soda - and I have known people who drank on average more than a can a day, but at the same time I do not doubt that cases exist - probably extreme excessive consumption or defective saliva or defective enamel.
I don't recall ever hearing a dentist (I see one every six months) mentioning it either - So, while I agree that excessive consumption of soda is a bad idea for your teeth and your health, if it was a significant risk I would expect to see more interest from several independent sources.
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