In the past, most crowns and bridges had a porcelain-fused-to-metal (PFM) substructure. These restorations, built on a dark metal alloy base, often look opaque and monochromatic, with a darker grayness at the gum line.All ceramic dental restorations made with zirconia have the natural look and translucency of natural teeth. Zirconia crowns and bridges have proven to be twice as strong as PFM restorations and up to five times stronger than other all-ceramic restorations used in dentistry.
Zirconia is 100% biocompatible because the body does not reject zirconia. This material is the preferred modern material for medical applications. Amalgams and metal alloys used in dentistry can cause allergic reactions not to mention mercury contamination. The body accepts zirconia as a natural material, so you don’t have to worry about allergies or adverse reactions.
Zirconia is a modern dental replacement for the metal substructures used under conventional crowns and bridges. Because of its stronger-than-metal properties, zirconia has been used for decades in many industrial applications, such as the space shuttle and on the new high-tech brakes on German sports cars. Sometimes called “white metal,” zirconia is the material of choice for creating substructures in cosmetic dentistry to give crowns and bridges a whiter brighter more translucent quality.