Uses of teeth

1. Teeth help in chewing of food.

2. Teeth help in phonation

3. They offer support to the facial tissues and therefore are important in facial appearance.

4. Presence of teeth helps maintain the health of the jaws.

Milk teeth and permanent teeth

Humans exhibit two sets of teeth. At birth no teeth are visible in the oral cavity. Soon the primary or the milk teeth appear in the oral cavity. These primary teeth are later shed off and are replaced by the permanent teeth.