how does fluoride protect your teeth from acids
1 Fluoride can protect teeth from demineralization that is caused by the acid. 2  Remineralization-if there is already some damage to teeth caused by acid, fluoride accumulates in the demineralized areas and begins strengthening the enamel, a process called remineralization.luoride, the 13th most abundant element on the earth's crust, is a chemical ion of the element fluorine-fluoride has one extra electron that gives it a negative charge. Fluoride is found naturally in soil, water, foods, and several minerals, such as fluorapatite and fluorite.