A crown ('cap' or 'helmet') is a covering placed over the remaining part of a prepared tooth, making it strong and giving it the shape of a natural tooth. Crowns are an ideal way to rebuild teeth which have been broken, or have been weakened by decay or a very large filling. They can also be used to improve the appearance of teeth. In addition, teeth diagnosed as having an early crack can be crowned to prevent them from splitting.
All ceramic crowns have the most natural appearance and are produced by many layers of tooth coloured porcelain enabling them to resemble the appearance of natural teeth.
Porcelain bonded crowns have the same porcelain layering as ceramic crowns but are also reinforced by a metallic core, which is needed when placing crowns on the back teeth to withstand the large forces generated when chewing
Frequently Asked Questions
How long does a crown last?
Crowns should last for many years. This does heavily depend on how you care for them. Consider the daily habits that could be affecting your crowns, and you'll be able to extend their wear.
Will the dentist use an anaesthetic?
When the tooth has already been root treated it isn't necessary, but in most cases your dentist will need to anaesthetise the tooth before working on it so that you don’t feel anything.