With the introduction of newer porcelains, inlays and onlays are being used more frequently now to rebuild damaged teeth.
The benefit of onlays is that there is less preparation of your tooth involved, are cost-effective and can be tailored to precisely match the existing colour of your teeth leaving your smile with a natural appearance. In fact, they are virtually indistinguishable to the naked eye.
White onlays can be used to replace larger fillings which have been bonded to your teeth and their amalgam predecessors, as they can distort in divergent temperatures, possibly fracturing and damaging the tooth.
Onlays also restore the biting surface of the teeth as well as replacing the old filling that was in the tooth. These restorations are fused onto the remaining tooth.