Last year, you may remember seeing in the news that the Department of Health and Human Services proposed changing the fluoride level in water. The reason for this was because they wanted to make sure the fluoride level in water was a healthy balance between the fluoride received in toothpaste.
The Food and Drug Administration allows over the counter toothpaste for adults to contain 1000 ppm or 1100 ppm of fluoride and allows it in three forms or compounds.
To meet the Food and Drug Administration regulations and be approved by the American Dental Association, over the counter toothpastes must have less than 276 mg of fluroride per tube.
You can read the full article to learn more about fluoride.