Teeth break down food mechanically.
- A child has 20 deciduous teeth, while an adult has 32 permanent teeth.
- They erupt at different age and mature when they reach around age 13.
- There are four types of teeth: Incisors, canines, premolars, and molars.
Source: Science Olympiad, © 2020.
Teeth consist of crown, neck and root.
- The crown is the upper surface. Bumps on the crown are called cusps.
- The neck is the region under the crown, but above the alveolar bone.
- The root is the region inside the alveolar bone.
Source: Science Olympiad, © 2020.