TEETH

Teeth are used to help break down food

Humans form 2 sets of teeth over the course of their lives.

The first set features 20 teeth.(child teeth)

The second set (adult teeth) features 32 teeth.

Baby teeth are usually replaced by adult teeth between the ages of 6 and 12.

Humans have a variety of teeth including molars, premolars, canines and incisors.

Incisors help bite pieces from food.

Canines help hold and tear food apart.

Molars help grind food.

Teeth are covered in a hard substance called enamel.

Teeth are surrounded by gums.

Cavities can damage a tooth if its left harmed.

Braces are often used to help straighten or align teeth.

Teeth are used to help break down food.

http://www.sciencekids.co.nz/sciencefacts/humanbody/teeth.html

What types of teeth do we have?