When looking at Zirconium Crowns from an aesthetic point, it provides a natural appearance even allowing light to pass through the tooth in a natural way, as opposed to (PFM) porcelain fused to metal crowns.
Zirconia is the strongest all-ceramic coping material available today. Due to its strength there is no possibilities for erosion to occur.
It is also known for its “Biocompatible” aspects. Zirconia is recognised as a Non-Allergic element as the body does not reject it unlike mercury/amalgam fillings and metal alloys. The human body accepts Zirconia as a natural material so there is no concerns of allergies or adverse reactions.