If you look in the mirror and are discouraged by the unsightly gray fillings that have dulled your once youthful smile, then it is time to consider their replacement with tooth-colored restorations. Very small fillings can be restored with tooth-colored bonding materials.
A popular alternative is porcelain inlays and onlays that not only look natural, but at the same time strengthen the remaining tooth structure. Tooth-colored porcelain restorations are extremely durable and require two visits. The result in your mouth could be one with no more dark shadows, but instead a bright, healthy smile.