Teeth have two parts:
- The crown is the part of the tooth we can see in our mouths.
- The root of the tooth is ‘planted’ into the jawbone to keep the tooth steady while it is doing its job.
Teeth have three layers:
- Enamel, a hard protective outer layer covering the crown of the tooth.
- Dentine, a second protective layer covering the nerve of the tooth.
- Pulp (also called the nerve), the soft middle of the tooth that has a blood supply and nerve endings.


![Drop Crown.. [ Explore #1 ] Drop Crown.. [ Explore #1 ]](http://static.flickr.com/4059/4231438863_17461115ac_t.jpg)

