Minerals such as fluoride, calcium, and phosphate are redeposited (remineralization) to the enamel layer from the foods and waters consumed. Too much demineralization without enough to repair the enamel layer leads to tooth decay.
Read more
enamel
Why do i have tooth sensitivity ?
Teeth sensitivity is the taste of ice cream or a sip of hot coffee sometimes a painful experience for you? Does brushing or flossing make you wince occasionally? If so, you may have sensitive teeth. Possible causes include: