Introduction
If you’ve been told you need a dental crown, you might be wondering, “How long do dental crowns last?” or “How long should a crown last?”
The answer depends on several factors, including the crown material and your daily habits and oral hygiene. With proper care, crowns can last 10–30 years, and in some cases, a lifetime. In this guide, you’ll learn what affects crown lifespan, how to make them last longer, and answers to the most common patient questions.
Average Lifespan of a Dental Crown
Most dental crowns last 10–30 years when well-maintained. Crowns made of stronger materials, such as gold or zirconia, often last longer than those made of porcelain or ceramic. Crowns on back molars usually endure more wear and may have a shorter lifespan compared to crowns on front teeth.
How long should a crown last? On average, a high-quality crown placed by an experienced dentist should last 15 years or more before needing replacement.
Factors That Affect How Long a Crown Lasts
Dental crowns can last for decades, but how long dental crowns last comes down to how you care for them and the everyday habits you keep. Here are the biggest things that make a difference:
Oral Hygiene
Your crown may be strong, but the tooth underneath still needs care. If you let plaque build up around the edges, it can cause decay or gum problems that weaken the crown’s support.
In simple terms — brush twice a day, floss every night, and don’t skip your checkups. It’s the easiest way to keep both your crown and the rest of your smile healthy for years.
Bite Habits
If you clench your teeth when you’re stressed or grind them at night, you’re putting your crown through a lot of extra pressure. Over time, this can cause it to chip or crack.
If you’ve ever woken up with a sore jaw or your partner says they hear you grinding, talk to your dentist about a night guard. It’s a small thing that can save you a lot of trouble down the road.
Diet
Chewing ice, crunching on hard candies, or tearing into sticky snacks can all put your crown at risk. Even things like biting pens or opening packages with your teeth can do damage.
If you want your crown to last, stick to using your teeth for eating — and choose foods that won’t crack, chip, or pull on it.
Placement
Where your crown is in your mouth matters.The back teeth do most of the heavy chewing, so crowns there usually wear out faster than those in the front.
If your crown is on a molar, be a little extra mindful about how you chew, and let your dentist keep a close eye on it during your regular visits.
Crown Material
- Porcelain or ceramic – Most natural-looking, often used for front teeth; average lifespan 10–15 years.
- Porcelain-fused-to-metal (PFM) – Durable but may show a metal line near the gums over time; 10–20 years.
- Gold or metal alloys – Extremely durable; can last 20+ years.
- Zirconia – Very strong and aesthetic; 15–20 years.
Eating and Lifestyle Habits
Avoid chewing ice, biting pens, or eating very hard candies. If you grind or clench your teeth, wearing a night guard can prevent cracks and chips.
Placement in the Mouth
Crowns on back molars endure more pressure from chewing and may wear faster than crowns on front teeth. Learn more about on Dental Crowns.
Signs Your Crown May Need Replacement
- Persistent tooth sensitivity or pain.
- Visible cracks, chips, or fractures.
- Looseness or movement when chewing.
- Gum recession around the crown’s edge.
How to Make Your Dental Crown Last Longer
- Brush twice daily with a soft-bristled toothbrush.
- Floss daily, sliding the floss gently along the crown’s edges.
- Schedule regular dental checkups every 6 months.
- Wear a night guard if you grind or clench your teeth.
- Avoid sticky, hard, or overly chewy foods that can loosen or damage the crown.
FAQs About Dental Crown Lifespan
Q: How long should a crown last?
Most crowns last 10–30 years with proper care. Many patients keep theirs for 15+ years before replacement.
Q: How long should a temporary crown last?
Temporary crowns are designed for short-term use — usually 2 to 4 weeks until your permanent crown is ready.
Q: How long should a dental crown last?
A well-made crown, maintained with good oral hygiene, should last at least a decade, often longer.
Q: How often do crowns need to be replaced?
Only when they become damaged, loose, or the underlying tooth develops decay. This may happen every 10–15 years for most patients.
Q: How common is decay under a crown?
It’s uncommon if you maintain excellent oral hygiene, but poor brushing and flossing can lead to decay around or under the crown.
Q: How do I know if my crown is coming off?
If it feels loose, rocks when you chew, or causes discomfort, see your dentist immediately.
Q: How many times can a tooth be crowned?
As long as enough healthy tooth structure remains, it can be crowned again. However, repeated replacements may require a root canal or extraction.
Q: What is the longest a dental crown can last?
With excellent care, some crowns last 40+ years.
Q: What percent of crowns fail?
Studies suggest around 5–15% may fail within 10 years, often due to poor oral care or biting habits.
Q: Is there a limit to how many crowns you can have?
No set limit — some patients have crowns on multiple teeth. It depends on oral health and treatment needs.
Q: How many crowns can you do at a time?
Several can be done in one visit if needed, though your dentist may stage them for comfort.
Conclusion
So, how long do dental crowns last? For most patients, a crown can last 10–30 years — and sometimes a lifetime — with the right care. By practicing good oral hygiene, visiting your dentist regularly, and protecting your crown from damage, you can maximize its lifespan and enjoy a healthy, confident smile for decades.
If you think your crown might need attention, book a checkup today and keep your investment in top condition.