What is it ?
Fluoride is a natural mineral that is very effective in protecting teeth against decay.
How does it work?
Tooth decay begins with dental plaque, a soft, sticky substance that builds up on your teeth. Plaque is mostly made up of bacteria, which feed on sugar from food and drink, producing acids as a waste product. The acids attack the teeth by dissolving the minerals in the tooth structure. If this happens too often, tooth decay results.
Minerals in saliva can mend the teeth. If fluoride is present in the mouth, it helps teeth to repair themselves.
If fluoride is consumed in appropriate amounts by young children, it helps to make growing teeth more resistant to decay.
Source: BDA leaflet