Today there are things, if you want to study the recipe for teeth cleaning, if you look for the chemical formula of toothpaste. Toothpaste contains calcium carbonate, which can be a friction agent to help remove fouling, and its chemical formula is $CaCO_ {3} $. Or silica, also used as a friction substance, chemical formula $SiO_ {2} $. Sodium fluoride is always present in it, which protects teeth and prevents moths, and its formula is $NaF $. In addition, moisturizing agents, such as glycerin, chemical formula $C_ {3} H_ {8} O_ {3} $, can keep toothpaste moist and easy to use. Fragrance adds its fragrance, which increases the user's pleasure. Foaming agent helps to generate foam for cleaning effect. All kinds of ingredients, prepared according to scientific methods, together form a toothpaste to protect oral health.