the.com/enamel
the hardest thing your body makes, and it can never make it again.
hardest tissueHarder than bone, the toughest material in your body
no regrowthHas no living cells, so it never heals
mostly mineralAround 96 percent crystalline calcium phosphate
see-throughTranslucent; tooth color comes from dentin beneath
acid foeDissolves below pH 5.5, no exceptions