Dental crowns are used to protect and restore teeth that have broken down heavily. They are also required after a tooth has needed a root canal treatment. This will then allow you to be able to chew and eat without fear of the tooth breaking.
They cover the entire tooth to replicate the original tooth as much as possible. Crowns can be made from many materials including porcelain, zirconia and gold. With modern day dentistry
Virtually indestructible crowns for the back teeth are now available. These are made from zirconia and look just like teeth. They are also completely metal free.
For front teeth, advances have meant that we can use highly aesthetic all ceramic crowns which look completely natural.