What makes teeth so hard? The hardest part of the tooth is the outer covering called enamel. It is made mostly of a chemical called calcium phosphate. This is different from the chemical that makes up ...

Much rarer are more severe cases, which cause pits in the enamel. Cleaning your teeth is more difficult when you wear braces, making it easier for plaque to build up. It’s little wonder ...

According to Cleveland Clinic, protecting your enamel will prevent the inner layers ... too hard or with specific dental ...