zirconia crowns are highly biocompatible, as the smooth surface helps to reduce plaque accumulation. Layered zirconia crowns are highly durable. Even though the porcelain used for layering does not have the strength of solid zirconia, they are designed to bond with the zirconium substructure, making chipping or fracturing extremely rare. The material also promotes a healthy tissue response.
A bridge replaces missing teeth without the use of a denture or dental implant. A false tooth is held in place by being attached to a neighboring tooth. In order to fabricate a bridge, crowns are made for the teeth on either side of the space and a false tooth is placed in between the crowns, as a support.