are restorations that cover the entire chewing surface of a tooth. They can be
made of gold or porcelain and are much more expensive than fillings.
why have a crown?
Sometimes a tooth has been filled so many times or has been so extensively
decayed that not much is left. Science tells us that if a tooth is over 60%
restored the remaining tooth structure will eventually crack without
protection. Sometimes these cracks will extend deep into the gum or bone and
the dentist will need to operate to remove all the broken fragments of tooth
from your jaw. If a long term solution is desired for a heavily filled tooth
only crowning it will give protection against cracking or fracture.