Tin(II) fluoride is widely used in dental care products, particularly in toothpastes, due to its ability to prevent tooth decay and strengthen enamel. It works by promoting the remineralization of tooth surfaces and reducing the solubility of enamel in acidic environments. It also exhibits antibacterial properties that help inhibit the growth of plaque-forming bacteria. This makes it effective in reducing cavities and improving overall oral health. Its use is especially common in formulations designed for cavity protection and sensitivity relief.