Remineralisation of teeth
![Example: Demineralisation and remineralisation of dental enamel in the presence of acid and fluoride in saliva and plaque fluid.[1] Remineralisation is a natural process and does not have to involve fluoride.](/uploads/202502/16/Enamel-fluoride-remineralization.svg0901.png)
Remineralisation of teeth is defined as the process whereby calcium and phosphate ions supplied from external sources are supplied to the tooth in order to promote ion deposition in demineralized enamel. The process of demineralization begins at the crystal surface found inside the enamel or dentine and may progress into cavitation unless halted by remineralisation. The remineralized crystals found on the tooth surface are acid resistant and are therefore less soluble than the original mineral.