It is well known everywhere that Fluoride is a mineral known to be anti-cariogenic, so it prevents caries and cavity formation. But this always is not a correct fact.

The people in U.S. are more prone to caries formation, just due to the fact that they have higher consumption of fluorine through food and water. A minimal amount of Fluorine is OK to prevent caries, but when it goes into excess, then it’s harmful.

Fluorine is just like some drugs, which taken in normal concentration help in a good way. But when taken in higher concentration, they go just against what we are using it for.