A dental crown is a custom-made cap that covers a damaged tooth, restoring its shape, strength and appearance. On average, crowns last about 5 to 15 years, and with good care many last longer. The exact number depends on the material, where the tooth sits in your mouth, and what your daily habits look like.
If you already have a crown, or you've been told you need one, this guide explains what affects how long it lasts, how to spot problems early and what you can do to get the most from your investment.
Key takeaways
- Most dental crowns last 5 to 15 years. Some last 20 years or more.
- Material, grinding habits, oral hygiene and bite forces all affect lifespan.
- Decay at the edge of the crown is the most common reason crowns fail.
- Regular check-ups catch small problems before the crown needs replacing.
- A night guard can protect crowns if you grind your teeth.
What is a dental crown, and why would you need one?
A crown fits over the entire visible portion of a tooth, like a cap. Dentists recommend crowns to:
- Protect a weak tooth from breaking, such as one with a large filling
- Restore a cracked, broken or badly worn tooth
- Cover a tooth after a root canal
- Hold a dental bridge in place
- Cover a dental implant
- Improve the shape or color of a tooth
If you have a broken tooth, early treatment can often save it. Learn more about our broken tooth treatment options.
How long do crowns last by material?
The material your crown is made from affects both its look and its durability. Here is a general guide, though individual results vary.
Porcelain-fused-to-metal
- Typical strengths: Strong, with a natural look; a thin dark line can show at the gum over time
- General lifespan: About 10 to 15 years
All-ceramic or porcelain
- Typical strengths: The most natural color and translucency; often chosen for front teeth
- General lifespan: About 10 to 15 years
Zirconia
- Typical strengths: Very strong and fracture resistant; good for back teeth
- General lifespan: Often 15 years or more
Gold or metal alloys
- Typical strengths: Extremely durable and gentle on opposing teeth
- General lifespan: Often 15 to 20+ years
Resin
- Typical strengths: Lower cost, often used as a temporary solution
- General lifespan: Shorter, often a few years
Your dentist will recommend a material based on the tooth's location, how much force it takes, your gum health, your bite and your appearance goals. These figures are general ranges, not guarantees.
What affects how long a crown lasts?
Your oral hygiene
A crown can't decay, but the tooth underneath can. Plaque that builds up where the crown meets the gum line can cause decay at the margin, the most common reason a crown needs replacing. Brushing twice a day and flossing daily around the crown helps protect it.
Teeth grinding and clenching
Bruxism puts heavy pressure on teeth and can chip or crack even strong materials. Many people grind at night without realizing. A custom night guard can reduce the strain.
Habits that damage crowns
Chewing ice, biting your nails, using your teeth to open packages and chewing very hard foods can crack or loosen a crown.
Location in the mouth
Crowns on back teeth handle more chewing force than front teeth, so they are more prone to wear and fracture.
Gum health
Gum disease and recession can expose the edge of the crown and the tooth root, making decay more likely. Healthy gums help keep the crown stable.
Quality of fit and workmanship
A well-fitted crown seals tightly against the tooth, leaving little room for bacteria. Precision matters, which is why a careful fit and bite check at placement are so important.
Signs your crown may need attention
See your dentist if you notice:
- Pain or sensitivity when you bite or when you have hot or cold drinks
- A crown that feels loose or moves
- A chip, crack or visible wear on the crown
- A dark line or gap at the edge near the gum
- Swollen, red or receding gums around the crown
- A bad taste or odor, which can suggest decay or infection underneath
- A rough or uneven bite
If a crown comes off, keep it safe, avoid chewing on that side and contact us promptly. Dental emergencies, including broken or lost restorations, are part of the care we provide.
How to make your dental crown last longer
- Brush twice a day with fluoride toothpaste and floss daily, including around the crown.
- See your dentist every six months for check-ups and cleanings, so small issues are caught early.
- Wear a night guard if you grind or clench your teeth.
- Avoid chewing hard objects such as ice, pen caps and hard candy.
- Don't use your teeth as tools.
- Limit sugary snacks and drinks to protect the tooth under the crown.
- Treat gum health seriously. Healthy gums support a lasting restoration.
Can a crown be repaired or does it need replacing?
Minor chips can sometimes be polished or repaired. Larger cracks, decay under the crown or a poor fit usually mean the crown needs to be replaced.
If the tooth underneath is badly damaged, your dentist may discuss other options, such as a root canal, or in some cases extraction and replacement with an implant or bridge. We cover those choices in our guides on dental implants vs. bridges and on when tooth extraction is necessary.
What to expect at Manassas Dental Smiles
Our team takes time to explain why a crown is recommended, which material suits your tooth and how to care for it. We believe in anticipating problems, not waiting for them, which is why we pay close attention to the health of the tooth beneath each crown at every visit.
Frequently asked questions
Do dental crowns last forever?
No. Even well-cared-for crowns eventually wear down or need replacing, but many last a decade or longer.
Can a tooth with a crown get a cavity?
Yes. The crown itself won't decay, but the natural tooth underneath can, especially at the edge near the gum line.
Does getting a crown hurt?
The tooth is numbed during preparation, so you shouldn't feel pain. Mild sensitivity can occur for a few days afterward.
How many visits does a crown take?
Traditionally two visits: one to prepare the tooth and take impressions, and a second to place the permanent crown.
What is the best material for a crown?
It depends on the tooth. Zirconia and metal alloys are very durable for back teeth, while porcelain can look most natural on front teeth. Your dentist will advise.
How do I know if my crown needs replacing?
Pain when biting, looseness, cracks, a dark line at the gum or gum swelling are all warning signs. Have it checked promptly.
Concerned about a crown, or think you need one?
Call Manassas Dental Smiles at (571) 350-9292 or book online. We'll check your tooth, explain your options and help you protect your smile for the long term.
Manassas Dental Smiles
8559 Sudley Road, Manassas, VA 20110
Monday to Friday, 9:00 AM to 5:00 PM. Alternate Saturdays, 9:00 AM to 1:00 PM.