Originally posted by: Aelius
flouride casues bone spurs (cancer).
Why do you think there's a label on your toothpaste that says "do not swallow toothpaste".
It's not because of the taste.
Bone spurs are not cancer. Also, please do not post random information that is (highly) likely not true, or is true with conditions (i.e. ingesting
5 pounds of fluoride causes bone spurs), without noting them and posting links to references.
To OP regarding comparisons to other countries:
There is no way you can compare dental cavity rates between two entire countries and make conclusions about the fluoridation rates with ANY sort of validity.
1. As you noted, only some 67% of Americans use fluoride and I'm sure many in these other countries DO use it as well, so the sample is not well-defined between the two groups.
2. There are an infinitude of other factors to consider. For example, do Americans eat a ton more sugar in general? (yes, particularly soft drinks) Do Americans generally take better care of their teeth? Worse care? How were the people sampled (if in Africa, say, were the English-speakers more likely to be polled, those speaking English generally being better-off than otherwise and therefore having access to better dental care?)
As a side note, someone mentioned rat research: that sounds like complete hokiness. "Use of fluoridated water made the rats more likely to have damage to blood vessels in the brain...." You can probably come up with a study that proves feeding rats too much lettuce causes causes testicular cancer, but there are always so many different things happening in a system as complex as a biological, living organism that science as we know it is only scratching the surface of understanding the interaction between different bodily systems.
To sum it up: don't worry so much.