A zirconia crown does not cause allergic reactions to metal because it does not contain any metals.
Do zirconia crowns cause discoloration in future?
No plaque is deposited because of its smooth and slippery porcelain surface. Therefore, it is not affected by coloring agents such as coffee, tea and smoking. Its color stays the same.
Does it cause taste change or malodor in my mouth?
It will not create any taste change or cause malodor as it contains no metals at all.