Explanation

Human teeth have two sets of teeth during their life i.e, one temporary set of milk and one permanent set.

Additional information:

The first set, deciduous teeth, also called "primary teeth"

It eventually contains 20 teeth.

They usually grow in by the age of 2.

The second set is called permanent teeth.

These are the teeth that grow between the ages of 6 and 12.

You start with 20 primary teeth

and end with 32 permanent teeth,

including the four wisdom teeth.