I totally agree. Sugar is one of the most toxic things we can ever get. I get that feeling on the teeth you were talking about when I drink Coke. I stopped drinking this toxic drink years ago but from time to time I feel that strong need to drink this even if it makes my heart feel very bad after just a few sips. But when I get that feeling I'm like "ewww, I need to wash my teeth right after it" - it's just the scream of the organism saying that we hurt him.. :)
Totally, I can't drink sodas at all, I never liked them, water is always my choice, if possible.