About Dental Crowns
A crown is like a cap that fits over a tooth. Think of it like a helmet over a tooth, it protects the tooth from breaking or cracking. Your dentist may recommend a crown for your tooth.
Why you may need a crown?
There are many situations where it might be deemed necessary to recommend that a crown is required. Your dentist will discuss this with you. The most common reasons as listed below.
- If you have a tooth that is weak and is at risk of fracture or breaking further
- If a tooth has less enamel and dentine and more filling
- To support a dental bridge and keep it in place
- To cover up a dental implant that you’ve had fitted
- To improve the colour or shape of a tooth
What is a crown made out of?
There are 4 main materials for crowns. Each crown has its advantages and disadvantages depending on the patient, tooth and situation. Your dentist will discuss the material of the crown with you in your appointment.
Non precious metal crown
Metal and ceramic crown
All ceramic crown
Gold crown
What is the procedure for getting a crown?
Normally, a crown is done in two visits. On the first visit, local anaesthetic is often used to numb the tooth. The tooth is prepared so the crown fits snugly onto the remaining tooth once it is ready. After the preparation, an impression (mould) is taken of the tooth which is sent to the lab. Then a temporary filling/crown is used to cover the tooth whilst the lab makes the custom made crown.
The second appointment is usually a shorter appointment where the temporary crown is removed and the crown is fitted. An adhesive cement is used to give maximum retention.
How long do crowns last?
How long a crown lasts depends on many factors such as the type of crown used, the amount and health of the remaining natural tooth and the quality of oral hygiene. For a better understanding, please discuss this with your dentist.
