The basics
What is a dental crown, and when do you need one?
A crown is a custom cap that sits over the whole visible part of a tooth, from the gum line to the biting surface. Once cemented, it takes the chewing load off weakened tooth structure and gives the tooth a fresh outer surface with a natural shape and colour.
Our dentists usually suggest a crown when a filling alone can no longer hold a tooth together. Common reasons include:
- A large, ageing filling, especially an old metal one, that leaves thin walls at risk of cracking
- A cracked or broken tooth that needs to be held together
- Decay that has spread too far for a standard filling
- A back tooth after root canal treatment, which tends to become brittle
- A worn, misshapen or badly discoloured tooth you want to look right again
- A missing tooth replaced with a dental implant, where the crown becomes the visible new tooth
If you are missing a tooth and the neighbours are sound, a bridge may be the better fit. That treatment has its own page: dental crowns and bridges in Kallangur.








