Enamel & Fluoride
Enamel is the visible outer layer of our teeth and it is made up mostly of minerals. Minerals are the things that make up rocks, so you can think of enamel like a smooth rock, which may be hard, but it can still be damaged. Have you ever known anyone with a kitchen countertop made of marble? Marble is a lot like our teeth. It is a hard rock that can be made into a [...]