Teeth play a very important role in a person's survival. Without a
decent set of teeth, a person cannot eat, and thus, survive. They also
give a lot of clues to a person's life history and cultural practices.
Dental disease starts out as the interaction between bacteria,
and carbohydrates. If left unchecked, the bacteria can cause the
deterioration of the tooth enamel, followed by the pulp, root, and
surrounding soft tissue. Infection of the teeth can lead to either
tooth loss or severe infection (abscess).
Enamel - really hard
Dentin - not so hard
Pulp - nerve endings