Inlays and onlays are used to reinforce an existing tooth that is too damaged to support a filling, but not damaged enough to need a crown. These restorations are usually fabricated from composite resin, porcelain or gold.
An inlay is placed on the chewing surface between the grooves (cusps) of a tooth, while an onlay covers one or more cusps. Once in place, they are basically undetectable and retain much of the natural structure of your teeth.
