Crowns...
... are ideal to use in the
resoration of broken or badly decayed teeth and are also necessary to
cover a root-canal filling. They are made from a variety of materials,
and new materials are being introduced all the time. Here are some of
the options available at present: Porcelain bonded to precious metal...
This is what the majority of crowns are made from. A precious metal base
(usually an alloy of gold) is made and porcelain is then applied in
layers over it.
-
Porcelain... These
crowns are not as strong as bonded crowns but they can look very
natural and are most often used for front teeth.
-
Porcelain and
composite... Porcelain and composite resin materials can sometimes
look the most natural. However, these crowns are not as strong as
bonded metal crowns.
-
Glass... These crowns
look very natural and are used on both front and back teeth.
-
Precious metal (gold and
palladium)... These crowns are very strong and hard wearing, but are
usually used at the back of the mouth, where they are not visible.
Before... badly aligned or
decayed teeth can benefit from the fitting of crowns. |
After... Although a similar effect can be obtained with
veneers, the fitting of crowns can restore misaligned teeth.
|