White fillings (composite restorations) are a great solution when restoring teeth with mild to moderate damage, however, stronger material should be considered for fractured teeth or very large cavities. Inlays and onlays are custom made for your tooth in a dental laboratory and are bonded in place. Onlays are frequently made from a new porcelain material called Emax, which has the life like look of traditional porcelain but is incredibly strong. These Emax onlays fit into the tooth covering the weak areas and seal the tooth from further bacterial damage.