How long do dental crowns last?

Dental crowns are designed to be long-lasting restorations, but they are not permanent. On average, dental crowns last between 10 and 15 years. With excellent oral hygiene and proper care, many crowns can last 20 years or longer. Their exact lifespan depends on the material used, your oral habits, and how well you maintain them.

Average lifespan of dental crowns

While every patient is different, dentists generally see these typical ranges:

Porcelain-fused-to-metal crowns: 10–15 years
All-ceramic / all-porcelain crowns: 10–15 years
Zirconia crowns: 15–20+ years (very durable)
Gold or metal crowns: 20+ years (often the longest-lasting)
Temporary crowns: A few weeks to a few months (short-term use only)

These are averages, not expiration dates. Some crowns may need replacement sooner due to damage or decay, while others can last decades with ideal care.

What affects how long dental crowns last?

Several factors influence crown longevity:

1. Crown material

Metal and gold crowns are extremely durable and resistant to chipping, making them ideal for back teeth where bite forces are strongest.
Porcelain-fused-to-metal crowns are strong but can sometimes chip at the porcelain layer.
All-porcelain or ceramic crowns look very natural and are great for front teeth but may be slightly more prone to chipping than metal.
Zirconia crowns combine strength with good aesthetics and are increasingly popular for both front and back teeth.

2. Oral hygiene habits

Good oral care helps protect the tooth under the crown and the surrounding gum tissue:

Brushing twice daily with fluoride toothpaste
Flossing once daily (including around the crown)
Using an antibacterial mouthwash if recommended
Seeing your dentist regularly for cleanings and exams

If plaque and bacteria build up at the margin where the crown meets the natural tooth, decay can form underneath, leading to crown failure.

3. Bite forces and habits

Excessive force can shorten the life of a dental crown:

Bruxism (teeth grinding or clenching) can cause cracks, chips, or loosen crowns
Chewing ice, hard candies, pens, or fingernails can damage the crown
Using teeth as tools (opening packages, biting off tags) stresses both crowns and natural teeth

If you grind or clench your teeth, your dentist may recommend a night guard to protect your crowns and other restorations.

4. Location in the mouth

Crowns on back teeth are exposed to higher chewing forces and may wear faster. Crowns on front teeth experience less pressure but must withstand biting into foods and possible trauma.

5. Quality of the dental work

The skill of the dentist and dental lab matters:

Proper tooth preparation and impression taking
Well-fitting crowns that seal the tooth effectively
Correct bite adjustment so the crown is not taking too much force

A crown that fits poorly or is constantly “high” in your bite is more likely to crack, loosen, or irritate surrounding teeth.

6. General health and lifestyle

Dry mouth (from medications or medical conditions) increases decay risk
High-sugar diets raise the chance of cavities around the crown
Smoking can impair gum health and overall oral stability
Gum disease can affect the tooth and bone supporting the crown

Signs your dental crown may need replacement

Even if your crown is within its expected lifespan, it’s important to watch for warning signs:

Pain or sensitivity around the crowned tooth
Pain when biting down or chewing
Visible cracks, chips, or fractures in the crown
Dark lines or spots at the gumline, suggesting decay
A loose or wobbly crown
Gum inflammation, recession, or bleeding around the crown
Crown falls off entirely (this is urgent and needs prompt dental attention)

If you notice any of these issues, schedule a dental visit as soon as possible. Early treatment can often save the tooth and allow for a new crown to be placed.

Can a dental crown last a lifetime?

Yes, some dental crowns do last a lifetime, especially:

Metal or gold crowns on back teeth
Crowns placed on teeth with minimal additional risk factors
Crowns maintained with outstanding oral hygiene and protected from grinding

However, it’s safer to view crowns as long-term restorations rather than permanent. Your bite, gums, underlying tooth, and general health can change over time, all of which affect crown longevity.

How to make your dental crowns last longer

You can significantly extend how long dental crowns last by following these steps:

1. Maintain excellent oral hygiene

Brush at least twice a day with fluoride toothpaste
Floss daily, gently sliding the floss under the crown’s contact point
Use interdental brushes or water flossers if standard floss is difficult
Consider fluoride rinses or products if your dentist recommends them

2. Protect your crowns from excessive force

Ask your dentist about a night guard if you grind or clench
Avoid chewing ice, hard candy, bones, or kernels
Don’t use your teeth to open bottles, packets, or cut plastic

3. Keep regular dental visits

Professional cleanings and exams every 6 months (or as recommended)
X-rays when needed to check for decay under or around the crown
Minor bite adjustments if your crown is taking too much pressure

4. Support your overall oral health

Reduce sugary snacks and acidic drinks
Stay hydrated to support saliva production
Avoid tobacco products
Manage conditions like diabetes that can impact oral health

Why dental crowns sometimes fail early

Although crowns are designed for durability, some fail sooner than expected. Common reasons include:

Decay under the crown due to poor hygiene or high sugar intake
Fractures from trauma, grinding, or biting hard objects
Cement washout, where the adhesive deteriorates and the crown loosens
Gum recession, exposing vulnerable tooth structure and causing sensitivity or decay
Root fractures in teeth that have had root canals
Improper fit or misaligned bite, putting undue stress on the crown

In many cases, these issues can be minimized with good home care and regular dentist visits.

Repairing vs replacing a dental crown

Whether a damaged crown can be repaired or needs replacement depends on the type and extent of the problem:

Minor chip or rough edge: Sometimes can be smoothed or repaired with filling material
Moderate porcelain fracture: May be repairable in select cases, but often replacement is recommended
Large crack, broken crown, or decay underneath: Usually requires full replacement
Loose crown: May be recemented if the underlying tooth is healthy and the crown is intact

Your dentist will examine the crown and underlying tooth, often with X-rays, to recommend the best approach.

How often should dental crowns be checked?

Every routine dental visit should include:

Visual inspection of your crowns
Evaluation of your bite
Checking your gums for inflammation or recession
Periodic X-rays to assess the tooth and bone under and around the crown

Even if your crowns feel fine, ongoing monitoring helps ensure they last as long as possible.

Key takeaways: how long do dental crowns last?

Most permanent dental crowns last 10–15 years on average
With excellent care, many crowns can last 20 years or more
Material, oral hygiene, bite forces, and general health all influence longevity
Regular dental checkups and daily home care are essential to protect your investment
If you notice pain, looseness, or damage, see your dentist promptly to prevent bigger problems

If you’re considering a dental crown—or already have one and are wondering about its lifespan—talk with your dentist about the best material for your needs and the specific steps you can take to help your crowns last as long as possible.