Other ingredients also reduce plaque, but zinc citrate is one of the most common, he says. A small 2008 study compared adults who brushed with a toothpaste containing zinc citrate and those who ...
A common antimicrobial ingredient triclosan, found in hand soaps and toothpastes, may alter gut bacteria and increase the risk of colon cancer, a study has found. (Thinkstock) A common ...
Fluoride (pronounced floor-ride) is another common ingredient in toothpaste. Your teeth have tiny gaps on the surface that are so small you can only see them with a microscope. Fluoride fills ...