If you have large cavities or are looking to replace your old metal fillings, porcelain inlays and onlays offer a more natural look and feel. Porcelain inlays are custom manufactured to match the look and feel of your own teeth. Porcelain inlays are strong and durable. Inlays are not merely cosmetic. Once porcelain inlays are bonded they can prevent further tooth decay.
Porcelain onlays are made similarly to porcelain inlays, but function more like a crown; they cover the top teeth that are too decayed to be fixed by a filling alone. Unlike a crown, porcelain onlays only cover the weakened part of the tooth and do not extend all the way down to the gum line.