Dentistry has experienced substantial
advancements in the 20th Century; however, there still remain some
situations where teeth have been so damaged by decay that they must be
removed as shown in the 1st illustration above.
In the 2nd illustration, a crown has
been used to cover and protect a damaged tooth, since the roots of teeth
extend into the bone of the jaw.
A crown is often used to cover and protect
a damaged tooth. It fits over the part of the tooth located above
the bone, but it can not go below the bone. Thus, the more healthy tooth
structure your Dentist has available to work with above the bone, the more
successful the results.
This is an example of crowning a tooth
in a normal situation. The tooth has been damaged, but there is still an
adequate amount of healthy tooth structure for the dentist to work with.
In the 3rd illustration, approximately
half of the tooth has broken away. The Dentist barely has enough
remaining tooth onto which he can successfully place a crown.
It is almost always impossible for a
Dentist to save a tooth if an inadequate amount of healthy tooth structure
left above the bone. In those situations, the only choice remaining
is to remove the tooth.
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