If you’ve had your crown for years, you may rarely think about it. Then it feels different when you bite down. You might wonder: how long do dental crowns last, and is mine still doing its job?
With this guide from our team at Ivory Dental Co in Maroubra, it will give you an idea what shapes a crown’s lifespan and the signs yours may need attention. It also covers what happens if a crown needs replacing.
How long does a crown last?
There’s actually no single answer to this question. Many dental crowns last 10 to 15 years, and some last longer. That said, there really is no definite answer to how long it’s going to last. However, others need attention sooner. A crown is a long-term restoration, but it isn’t permanent.
Research offers a useful starting point. A 2015 systematic review found about 95% of metal-ceramic single crowns were still in place after five years. Most types of all-ceramic crowns did about as well. That figure covers five years only, so it isn’t a promise for your crown.
If you’ve searched “how long does a crown last”, you’ve likely seen many different numbers. That’s because every mouth is different. Your dentist can give you a clearer idea after checking your crown and the tooth underneath.
The Australian Dental Association also reminds patients that having a crown doesn’t mean the tooth will never need treatment again. Crowns can chip, fracture or stop matching your other teeth. The natural tooth underneath can still develop decay.
What affects how long dental crowns last?
- Material. Crowns can be made from porcelain, zirconia, or porcelain bonded to metal. Each wears in its own way, so your dentist will have to talk through the options that suit your tooth and bite.
- Tooth position. Back teeth take more biting force than front teeth. Front teeth face more knocks and sports injuries.
- Daily cleaning. A crown can’t decay, but the tooth at its edge can. Brush twice a day with fluoride toothpaste and floss around the crown every day.
- Grinding and clenching. Teeth grinding adds extra pressure to a crown. Your dentist can talk with you about protective options, such as a custom night splint.
- Habits. Chewing ice, biting your nails or opening packets with your teeth can chip a crown.
- Gum health. Healthy gums help hold a crown steady. Gum disease can affect the tissue and bone that support the tooth.
- Regular check-ups. Visits let your dentist spot small problems early, before they grow.
Also read: Composite Bonding vs Porcelain Veneers: Which Smile Makeover Is Right for You?
Signs your dental crown may need attention
Part of knowing how long dental crowns last is knowing when to have them checked. It’s important to know that a crown rarely fails overnight. It happens gradually with small hints, and it’s usually because of various reasons. Watch for these signs:
- Pain or sensitivity. The tooth aches when you bite, or reacts to hot and cold drinks.
- A loose crown. It feels like it moves, or you notice a gap at the edge.
- A cracked crown. Even a small chip or crack can grow. You might feel a sharp edge with your tongue.
- Tooth decay under the crown. Signs can include a bad taste, bad breath or tenderness around the tooth. This kind of decay is hard to see, so your dentist may use an X-ray.
- Gum changes. Swollen, sore or receding gums can expose the edge of the crown.
- An uneven bite. The crown feels high, or your teeth no longer meet the way they used to.
- A colour mismatch. Your natural teeth can darken over time, so the crown may start to stand out.
One sign doesn’t always mean the crown has failed. Some changes are minor, and a quick check will tell you for sure.
When should you see a dentist?
Book a visit soon if you have pain or swelling. The same goes for a crown that feels loose or has come off. If it comes off, keep it in a clean container and bring it with you. Please don’t glue it back yourself.
If you’re in pain, our team also offers emergency dental care in Maroubra.
For smaller changes, such as a slight colour mismatch, a regular check-up is a good time to mention it. The Australian Dental Association says most Australians do well to see a dentist at least once a year.
What happens during dental crown replacement?
Dental crown replacement starts with a check of the crown and the tooth underneath. Your dentist may also take an X-ray.
First, if the tooth is healthy enough, the old crown is removed and a new one is made. If there’s decay or damage, that may need treatment before a new crown. A tooth with serious damage may also need root canal treatment first.
A replacement usually follows the same steps as the first crown. That typically means two appointments, with a temporary crown in between. A digital scan or impression helps the new crown fit well.
Preparing a tooth for a crown involves removing some tooth structure, and a replacement may need a little more shaping. Your dentist will explain the steps and what to expect before you decide.
Caring for your crown over the long term
So, how long do dental crowns last? It depends on the material, the tooth, your daily habits and your regular check-ups. Pain, a loose crown, a crack or gum changes are all worth having checked.
If you’re unsure about your dental crown, our team at Ivory Dental Co is happy to take a look. We will also check the condition of your teeth to determine whether a crown or a replacement suits you appropriately.
Book your appointment or call our team to schedule.
Frequently Asked Questions
How long do dental crowns last on average?
Many crowns last 10 to 15 years, and some last longer. They don’t last forever, though. A crown can chip, wear or come loose, and the tooth underneath can still decay. Regular check-ups help your dentist catch changes early.
How long do crowns last on back teeth?
Back teeth take more biting force, so crowns on molars may wear sooner than those on front teeth. That said, every case differs. Grinding and clenching can add to this. Your dentist can check how your crown is holding up.
Can a crown get a cavity?
The crown material itself can’t decay. However, the natural tooth under the crown can, especially near the gum line. That’s why daily cleaning and check-ups still matter.
Can you whiten a dental crown?
Porcelain and zirconia crowns usually keep their original shade, so teeth whitening is unlikely to change them. Whitening can change the shade of your natural teeth, which may make an older crown stand out.
Talk with your dentist before whitening if you have crowns.
