Effectiveness of fluoride in prevention of tooth decay

During the initial stage of dental caries, an appropriate amount of fluoride can enhance the saliva to replenish the lost minerals, promote the remineralization of teeth and repair the early caries.
Animation showing the longitudinal section of a tooth at its initial stage of tooth decay. An appropriate amount of fluoride has been applied to the decay resulting in the remineralization of the decayed portion.

Fluoride strengthens teeth and increases their resistance to acid attacks.
Animation of a tooth becoming very strong to resist acid attacks after fluoride absorbs onto it.

Fluoride inhibits the growth of dental plaque and reduces its acid--producing capability.
Animation of a tooth being protected by fluoride that reduces acid-producing capability of dental plaque.