Docstoc

Skeleton mouth teeth MB

Document Sample
Skeleton mouth teeth MB Powered By Docstoc
					The mouth and teeth

All about the mouth and teeth.
 Taking care of your teeth.
Taking Care of Your Teeth
 There's a lot more to taking
 care of your teeth than
 breath mints and mouth
 sprays. Read this article to
 learn the facts on flossing,
 how to give plaque the
 brush-off, and much more.
 link
                      The teeth.
• What's the difference between "baby" teeth
  and permanent teeth? At between six and
  ten months of age, most infants begin to
  get their "baby" teeth.
• The Central Incisors (front middle teeth)
  usually come in first, and then teeth begin
  appearing on either side and work their
  way back to the second molars. By the
  time a child has reached three years old,
  most of the "baby" teeth should be present.
• The process begins to repeat itself when
  the child is about seven years old. The
  Central Incisors fall out first and are
  replaced by permanent teeth. By the age
  of 21, most people have all of their
  permanent teeth. link
           The parts of teeth
• A tooth is basically made
  up of two parts: the crown
  and the root.
• The crown is what you
  see when you smile or
  open your mouth. It's the
  part that sits above your
  gumline.
• The root is below the
  gumline. It makes up about
  2/3rds of the tooth's total
  length. link
    Parts of your teeth and gums.
•   A tooth is a bit like a tree —
    only part of it is visible, and the
    roots lie beneath the surface.
•   The roots of your teeth extend
    into your gums and beyond into
    the jaw bones. Your tooth has
    many layers. The outer layer
    (enamel) is made of hard
    crystal.
•    The next layer (dentin) is
    softer. The pulp in the middle of
    the tooth contains nerves that
    conduct sensations of hot, cold
    and pain. The pulp also
    contains blood vessels. link

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:5
posted:10/7/2011
language:English
pages:5