Zirconium Crowns
ZIRCONIA
A zirconia crown is a popular type of all-ceramic crown which is worn to improve the appearance of a tooth which has become stained or disfigured over the years. They are durable, easy to wear and long lasting.
Plus zirconia crowns have a translucent appearance which means that they are indistinguishable from your own teeth. It is hard to spot a zirconia crown amongst natural teeth.
Are zirconia crowns safe?
From a radiation safety point of view, both porcelain and zirconia crowns are safe. The amount of radioactivity in these crowns is small and in low concentrations, just like the amount of radioactivity that is naturally in your body
Which is better zirconia or porcelain crown?
A layered zirconium crown has a more natural appearance, but it is not as strong. It is, however, still stronger than a porcelain crown with a metal base (Porcelain Fused to Metal – PFM). The better translucence makes it ideal for front teeth. Zirconia can also be made to match the color of your existing teeth
Is zirconium stronger than porcelain?
In fact, zirconium is five times as strong as porcelain! Zirconium crowns are milled in a way that they are nearly indestructible. They are also resistant to extreme hot and cold temperatures, which lowers the frequency of tooth hypersensitivity that can be common with other types of crowns.
Are zirconia crowns more expensive than porcelain?
They look natural, but are very prone to damage. Some of the most expensive dental crowns are made of pure zirconia. Zirconia crowns are extremely durable, “biocompatible”, and require less reshaping than porcelain crowns. This means your total tooth restoration costs may be lower than ceramic
What are the disadvantages of dental crowns?
- cost.
- preparation of the crown portion of the tooth.
- potential sensitivity and/or need for root canal treatment.
- potential for recurrent decay.
- potential for crown remake at some time in future.
- gum recession from crown margin.
- change in color of natural teeth which will then not “match” color of crown.
- fracture of porcelain.