What is a crown?
A dental crown is a restorative appliance, which is used when a tooth is damaged, decayed, infected or broken. Crowns are slotted over the top of the tooth to make them stronger and reduce the risk of further injury. Crowns are sometimes called caps.
You may be advised to have a crown if you have extensive decay, you’ve broken or damaged your tooth as a result of a sports injury or an accident or your tooth is infected and the infection has reached the pulp tissue. This is the part of the tooth, which contains the nerves and blood vessels. In the case of infection, the crown is usually placed once root canal treatment has been carried out; this procedure removes the decayed tissue and seals the tooth roots to stop the infection from spreading. We may also fit a new crown to an implant to replace a missing tooth.
What are crowns made from?
There are various materials, which can be used to make a crown, including precious metals, such as gold and ceramics, such as porcelain. Often, we use ceramic fused to metal, as this produces a strong crown, which also looks very natural.
How long does a crown last?
In most cases, a crown should last for around 10 years provided that it well cared-for. When you have your regular check-ups, we will take a look at the crown to check that it is in good condition.