There's no reason to put up with gaps in your teeth or
with teeth that are stained, badly shaped or crooked. Today a veneer
placed on top of your teeth can correct nature's mistake or the results
of an injury and help you have a beautiful smile. Veneers are thin,
custom-made shells crafted of tooth-colored materials designed to cover
the front side of teeth. They're made by a dental technician, usually in
a dental lab, working from a model provided by your dentist. You should
know that this is usually an irreversible process, because it's
necessary to remove a small amount of enamel from your teeth to
accommodate the shell. Your dentist may recommend that you avoid some
foods and beverages that may stain or discolor your veneers such as
coffee, tea or red wine. Sometimes a veneer might chip or fracture. But
for many people the results are more than worth it.
Composite Veneers
The major advantage of composite veneers is treatment
time. If composite is used, the veneers can be done in one appointment.
The dentist will actually make the veneer directly on the prepared
tooth. The veneer is then smoothed and polished to look like your
natural teeth. Since it takes only one appointment, you can leave your
dentist's office with a brand new smile. One of the disadvantages of
composite veneers is that they are not as strong as those made of
porcelain and therefore are more prone to fracture. However, if a
fracture does occur, they can be easily repaired because the same
material that was used initially to make the veneer can be added in the
same manner to fix it. Another disadvantage is that the color, although
stable, is not as stable as the same restoration made with porcelain.
This means that over time the veneers may get darker or turn yellow.
Eventually, this change in color can warrant the replacement of the
veneers.
Porcelain Veneers
A porcelain veneer requires a longer treatment time. At
the first appointment, your teeth are prepared and an impression is made
of them. Temporary veneers are made out of plastic and placed on your
teeth. They are used to protect your teeth while the real veneers are
being fabricated. You can also use them to evaluate the look and feel of
your teeth so that any changes you desire can be incorporated into your
real veneers. At the second appointment, the temporary veneers are
removed and the porcelain veneers are bonded to your teeth. Although
they are thin, porcelain veneers are much stronger than composite
veneers, so the risk of fracture as compared with composite veneers is
much less. However, if a fracture does occur, repairing it is more
difficult and may result in the veneer having to be remade. In general,
porcelain veneers can be used in a greater variety of situations with a
higher level of predictability. Since they are made outside the mouth,
the shape and color can be easier to control, thus enhancing the final
result.