Porcelain crowns also need to be fused to a metal base and the metal is that black unsightly line above the gums of people with porcelain crowns.
Ceramic or zirconia crowns.
These crowns are chosen over conventional pfms porcelain fused to metal or full gold crowns due to their superior strength durability and excellent aesthetics.
Your geographic location can also affect.
Some dentists exclusively use zirconia over all ceramic restorations particularly when restoring a single tooth.
Zirconia crown vs porcelain crown.
Advancements are being made to improve the color and look of zirconia crowns so in the future the appearance may be a non issue.
The basic technique for porcelain and zirconia crowns are fundamentally the same regardless of the materials used to make each crown.
The only thing left to consider is zirconia crowns vs porcelain fused to metal if your budget allows you would be best advised to go with the zirconia crown.
Since zirconium crowns are milled from a chunk of crystal they are guaranteed to be at least 5 times stronger than porcelain and it metal fuse.
Zirconia as a material is not as translucent allowing light as porcelain crowns so patients may not like the appearance of them says dental economics.
Zirconia crowns typically cost more than other types of dental crowns such as ceramic metal and porcelain.
Clinicians who wish to provide patients with excellent dental restorations often choose zirconia crowns.