Sodium fluoride
Other names: Sodium fluoride, NaF
Harm score: 2 (Derivatives of natural substances)
Sodium fluoride, also known as sodium fluoride or in chemical terminology as NaF, is an inorganic chemical compound. On the chemical surface it appears as a white crystalline powder or colourless crystals. It is usually odourless and its taste may be described as salty. Its main use is in the medical sector, specifically in the field of dentistry. It is also used in the manufacture of certain types of glass and insecticides.
Sodium fluoride is mainly used in toothpastes and mouthwashes. Its main importance lies in the prevention of tooth decay, as it protects the enamel of the teeth. It works by strengthening the remineralisation of the teeth, thereby increasing the resistance of the teeth to the acidic effects that cause tooth decay. It is also included in fertilisers or added to drinking water in areas where there is a lack of natural fluoride. In the glass industry it is used for its properties in lowering the melting point of glass and increasing its resistance. In the field of pesticides, it is used as a poison for pests, specifically rodents. But care must be taken, as excessive consumption can cause health problems such as dental or bone fluorosis.