Crowns and bridges are two of the most common ways to repair and replace teeth, but the words get used interchangeably and it is not always clear what you are actually getting. Here is the plain-English version.
This article focuses on how long restorations last and how to care for them. For the full explanation of the procedure, materials and what it costs, see our main page on dental crowns and bridges.
A crown is a cap that covers a whole tooth to restore its shape, strength and appearance. It is used when a tooth is too broken down, cracked or heavily filled to be fixed with a normal filling, and it is almost always fitted after a root canal to protect the weakened tooth. Crowns can be made from porcelain, ceramic or metal-ceramic blends depending on where the tooth sits.
A bridge replaces one or more missing teeth by joining crowns on the teeth either side of the gap to a false tooth in the middle. It literally bridges the space. Bridges are fixed in place, so unlike a denture they do not come out, but they do rely on the neighbouring teeth for support.
A well-made crown or bridge typically lasts 10 to 15 years, and often longer with good brushing, flossing and regular check-ups. What wears them out is usually decay creeping in at the edge or grinding, so looking after the supporting teeth matters just as much as the crown itself.
If the tooth is still there but damaged, a crown is usually the answer. If the tooth is missing, the choice is between a bridge and a dental implant. A bridge is quicker and does not need surgery, while an implant does not touch the neighbouring teeth and tends to last longer. We will talk you through which suits your situation and budget.
Crowns and bridges are classed as major dental, so many extras policies contribute once you have served any waiting period. It is worth checking your annual limit before you start, and we can give you a written quote with item numbers so you can confirm your rebate.
No. The tooth is numbed with local anaesthetic while it is prepared and while the crown is fitted. You may feel mild sensitivity for a few days between the preparation and the final crown, which settles quickly.
Traditionally two: one to prepare the tooth and take an impression, and one to fit the finished crown a couple of weeks later. You wear a temporary crown in between.
Yes, crowns and bridges are usually classified as major dental. Most extras policies cover them in part once any waiting period has been served, so check your limit and rebate first.
Keep the crown if you can, avoid chewing on that side and book in promptly. In many cases the same crown can be re-cemented; if it is damaged, a new one is made.