Demineralization is the process of removing minerals, in the form of mineral ions, from dental enamel. For example, if you feel something like a toothache, but the dentist says you don't have a cavity, chances are good you are feeling the results of a severely demineralized spot on your tooth that hasn't yet formed a cavity. Dentists frequently recommend brushing with a prescription high-dose fluoride gel to retard demineralization. When too many minerals are dissolved from an area of the hydroxyapatite's latticework, you have a cavity.
Cavities are the loss of the hydroxyapatite's crystalline latticework structure.
Fortunately, the latticework can be strengthened and restored through the process of remineralization. Both remineralization and demineralization occur on the surface of the tooth. If you examine the cross-section diagram of a tooth, you will see there is no connection between the bloodstream and the enamel. Therefore, taking mineral supplements has virtually no impact on remineralizing the teeth. In your mouth, as in the rest of nature, acids dissolve minerals, transforming them from solid mineral molecules into mineral ions that exist only in solution.