Basically it is the outer layer of a tooth that can get broken down by grinding your teeth and chewing hard candies.
Enamel is called the dentine part of the tooth
Enamel.
It's Dentin
The part of the tooth that is covered with enamel is the crown.
Enamel
enamel
crown , enamel
Enamel hopefully.
the enamel!
pulp does
It is the enamel, usually. There could be dentin exposed if there is decay.
Fluoride strengthens the enamel of the tooth, which is the outermost layer that helps protect it from decay and acid erosion.