Inlays and onlays are often referred to as partial crowns. They
use the existing tooth as a base and fit the inlay or onlay onto
the tooth. This is done to strengthen the tooth, restore its
shape, and prevent further damage. An inlay is done when there
is no damage to the cusps of the tooth and the inlay can be
placed right on the tooth. An onlay is used when the damage is a
little more extensive.
The decayed area of the tooth is first removed during the
procedure. A mold of the tooth is then taken and sent to a
dental lab. They create a restoration made from porcelain, gold,
or a composite resin. The restoration takes about 2-3 weeks to
make, so a temporary inlay or onlay will be placed on the tooth
for that time. During your next visit the inlay or onlay will be
placed into your mouth and set with cement. Your tooth will look
natural and you or anyone else won't be able to tell the
difference.