1. Primary teeth are also called baby teeth
2. By age 3 years, there are usually 20 primary teeth.
3. The spacing between children’s baby teeth is
important because it allows enough room for the
bigger, permanent teeth.
4. Primary teeth have thinner enamel and appear whiter than permanent teeth.
5. Disease may progress more quickly in primary teeth.
6. The biting surfaces of molars are grooved
7. Permanent teeth have wavy edges
when they erupt, which smooth out with normal
wear and tear.