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 ...

Led by hydroxyapatite, which is the primary natural mineral of tooth enamel and bone, this toothpaste restores the foundation of tooth enamel. Add in sodium fluoride to prevent cavities and decay, and ...