enamel

Enamel is the hard, white outer layer of the teeth. It is the hardest substance in the body and protects the teeth from decay.

Enamel is made up of a mineral called hydroxyapatite. Hydroxyapatite is a very strong mineral that is resistant to acids. This is why enamel is so good at protecting the teeth from decay.

Enamel is formed in the early years of life. Once it is formed, it does not grow back. This means that it is important to take care of enamel and prevent it from getting damaged.

Some things that can damage enamel include:

• Tooth decay: Tooth decay is caused by bacteria that produce acids. These acids can dissolve the enamel, leading to cavities.
• Tooth grinding: Tooth grinding, also known as bruxism, can wear away the enamel.
• Acidic foods and drinks: Acidic foods and drinks, such as soda and citrus fruits, can weaken the enamel.

To enamel something is to coat it with enamel.