How can I prevent dental caries?
Balanced meals, regular oral hygiene, which means brushing your teeth after every meal and using dental floss or interdental brushes in the evening, and fluoride-containing mouthwash can help re-mineralize lesions of enamel and stop beginning tooth decay. Enamel which is damaged by bacterial acids can be significantly repaired by using a re-mineralizating mouthwash containing aminofluoride twice a day. This effect has been proven in a double-blind study at the university dental hospital of Freiburg.
Source: dentalreport DFZ 11.2009