Zirconia crowns are porcelain structures reinforced with Zirconium oxide, which makes them more durable and more resistant to wear and damage. Zirconia is the strongest, most advanced dental ceramic material available. Zirconia, or zirconium dioxide, is a white crystalline oxide made from the metal zirconium, the same material that forms the basic structure of fake diamonds.
Many dentists consider zirconia an ideal, highly-effective restorative solution because it combines the aesthetics patients are hoping for and the strength the dentist demands. In many laboratory tests, zirconia outperformed metal and ceramic in its superior strength and resistance to fractures.