fluoride

Fluorine in its various forms is the most active ingredient in toothpaste to prevent cavities. It is found in teeth in small amounts in plants and animals and in some natural water sources. Adding fluorine to toothpaste has positive effects, as it builds enamel and bone. Sodium fluoride is the most common source of fluorine. Clinical evidence found that toothpastes with a fluoride concentration of less than 1000 ppm are not protective for teeth [5], and the protective effect increases with concentration, so it is recommended to use highly concentrated fluoride toothpastes [6], as it was found to reduce the amount of plaque accumulated and with This has to be balanced with the increased risk of harm at higher concentrations. [7]