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This I Thought was True
Coca-Cola Could Dissolve A Tooth Overnight

Coca-Cola could dissolve a tooth overnight. This I thought was true. When I was in elementary school, my teacher told us that Coca-cola is so bad for us, it would dissolve a tooth overnight. This, I used to believe. As I grew up, the details of the statement kept changing from tooth to coins to nails. The truth is: pretty much any liquid with sugar and acid in it can eventually dissolve a tooth over a long period of time, including lemonade and fresh orange juice. However, the act of drinking only gives a few seconds of contact time between the liquid and our teeth. Any residual sugar and acid would be washed away by our saliva. Unless you are planning on holding a gulp-full of coke in your mouth without swallowing or producing saliva, there is nothing to worry about if you brush your teeth regularly.