How Long Do Dental Crowns Last? Lifespan, Materials, and Care

How long do dental crowns last? Many crowns serve well for a decade or longer, and research shows high survival in the first five years: a 2015 systematic review estimated 5-year survival of about 95% for metal-ceramic crowns and about 97% for lithium disilicate glass-ceramic crowns. How long your crown lasts depends on the material, the tooth, your bite and grinding habits, and how well you care for the tooth underneath. This guide explains dental crown lifespan by material, what shortens it, warning signs, and how to make a crown last.

Dental Crown Lifespan: What the Research Shows

A 2015 systematic review in Dental Materials pooled 67 studies of more than 14,000 single crowns and estimated 5-year survival rates by crown type:

The review found that most types of all-ceramic crowns performed similarly to metal-ceramic crowns, while some ceramics had lower survival in back teeth. Five-year figures describe averages across many patients. Many crowns last well beyond five years, especially with good care and regular checkups.

What Is a Dental Crown?

A dental crown is a custom cap that covers the visible part of a tooth. Crowns are used to:

•        Protect a weak or cracked tooth

•        Cover a tooth with a large filling and little natural structure left

•        Restore a broken or worn tooth

•        Protect a tooth after root canal treatment

•        Improve the appearance of a discoloured or misshapen tooth

•        Anchor a bridge or cover a dental implant

Learn more about crowns and bridges in Thunder Bay at Sky Dental Centre.

What Affects How Long a Crown Lasts?

Crown Materials Compared

Porcelain and ceramic crowns

Porcelain and ceramic crowns closely match the colour of natural teeth, which makes them a common choice for visible teeth. Sky Dental Centre offers porcelain crowns. Reinforced glass-ceramics such as lithium disilicate have shown high 5-year survival in research.

Porcelain-fused-to-metal crowns

These combine a metal base for strength with a porcelain outer layer for appearance. They have a long track record but can show a dark line at the gumline over time.

Zirconia crowns

Zirconia is very strong and often used for back teeth or for people who grind. Veneered zirconia crowns can chip in the outer layer; your dentist will explain the options.

Gold and metal alloy crowns

Metal crowns are very durable and gentle on opposing teeth, but their colour makes them less suitable for visible teeth.

Composite crowns

Composite crowns are usually temporary or used in specific situations; they tend to wear and stain more quickly than ceramic.

What Are Same-Day Crowns?

Same-day crowns are designed and milled in the office using CAD/CAM technology, so the crown can be placed in one visit without a temporary crown. Sky Dental Centre offers same-day crowns using CEREC technology. A published review of CAD/CAM dentistry describes how CAD/CAM has made the fabrication of restorations more precise and efficient. Not every tooth is suited to a same-day crown; your dentist will explain whether it fits your situation.

How Is a Crown Placed?

1. Assessment: the tooth is examined, often with X-rays, to confirm a crown is the right option.

2. Preparation: the tooth is shaped to make room for the crown. Root canal therapy may be needed first if the nerve is affected.

3. Impression or scan: used to design the crown.

4. Temporary or same-day crown: a temporary crown protects the tooth while a lab crown is made, or a same-day crown is milled in the office.

5. Placement: the crown is checked for fit, bite, and appearance, then bonded or cemented.

Learn more about root canal therapy in Thunder Bay at Sky Dental Centre.

Signs a Crown Needs Attention

•        Pain or sensitivity around the crown

•        A dark line, gap, or rough edge at the gumline

•        A loose crown, or one that has come off

•        Chips or cracks in the crown

•        Swelling or bleeding gums around the crown

•        A bad taste or smell near the crown

•        Your bite feels different

Can a Crown Be Repaired Instead of Replaced?

Sometimes. Small chips in porcelain may be smoothed or repaired with tooth-coloured material. A loose crown can often be re-cemented if the tooth underneath is healthy. A crown usually needs replacing if there is decay underneath, a large fracture, or a poor fit at the edges. Your dentist will assess the crown and tooth before recommending repair or replacement.

What to Do If a Crown Falls Off

Keep the crown in a safe container and call the office. Avoid chewing on that side, and keep the area clean. Pharmacy dental cement can protect the tooth temporarily, but do not use household glue. Sky Dental Centre offers same-day emergency appointments for new and existing patients. Learn more about emergency dental care in Thunder Bay.

How to Make Your Crown Last Longer

•        Brush twice a day with a soft toothbrush and fluoride toothpaste, paying attention to the gumline.

•        Clean between your teeth daily, including around the crown.

•        Use a fluoride rinse if your dentist recommends it.

•        Limit sugary and sticky snacks and drinks.

•        Avoid chewing ice, hard candy, and pens.

•        Wear a night guard if you grind or clench. Learn about TMJ therapy in Thunder Bay.

•        Wear a sportsguard for contact sports.

•        Keep up regular checkups and cleanings.

The tooth under a crown can still decay at the edges, so home care and checkups matter as much as the crown itself.

Does Insurance Cover Crowns?

Many dental plans cover crowns under major services, often at a lower percentage than basic care, with annual maximums and sometimes waiting periods. Check your plan booklet for “major restorative” coverage, or ask the front desk to help. Sky Dental Centre bills most insurance providers directly. The Canadian Dental Care Plan covers crowns for eligible members with pre-authorization; check the official CDCP coverage page. For larger treatment, Sky Dental Centre offers payment plans through Beautifi®.

Crowns vs Veneers vs Fillings

Learn about same-day veneers in Thunder Bay and whether you need a crown or a bridge.

Crowns on Front Teeth vs Back Teeth

Front teeth take lighter chewing forces, so appearance usually drives material choice; all-ceramic crowns such as lithium disilicate are common. Back teeth take heavier forces, so strength matters more; metal-ceramic, zirconia, or reinforced ceramics are often chosen. The 2015 review found that some ceramic types had lower survival in back teeth, which is one reason your dentist matches the material to the tooth.

Crowns on Implants and Root-Canal-Treated Teeth

Crowns on dental implants follow the same care principles: clean around the gumline daily and keep up checkups, since inflammation around implants can affect the bone. A root-canal-treated back tooth usually needs a crown to protect it from cracking. Learn about dental implants in Thunder Bay.

How Often Should a Crown Be Checked?

Your dentist checks crowns at each regular visit, looking at the edges, bite, gum health, and any wear or chips. X-rays may be used to check for decay under the crown. Catching small problems early often means a repair rather than a replacement.

Myths About Dental Crowns

•        “A crown makes a tooth indestructible.” The tooth under a crown can still decay or crack.

•        “All crowns last the same amount of time.” Survival varies by material, tooth, and habits.

•        “Crowns never need checking.” Edges and bite should be checked at regular visits.

•        “A crown that doesn’t hurt is fine.” Decay at the edge can be painless until advanced.

Questions to Ask About Your Crown

•        Which material do you recommend for this tooth, and why?

•        Is a same-day crown suitable for my tooth?

•        How long can I expect this crown to last with good care?

•        Do I need a night guard?

•        What will insurance likely cover?

Dental Crown Lifespan in Thunder Bay

Local factors do not change how crowns perform, but lifestyle does. Contact sports such as hockey, chewing ice in winter, and grinding during stressful periods can all shorten a crown’s life. A sportsguard and a night guard are simple ways to protect crowns and natural teeth alike.

Replacing an Old Crown

When a crown is replaced, the dentist removes the old crown, treats any decay underneath, rebuilds the tooth if needed, and places a new crown. Replacement is a chance to improve fit, appearance, and material choice. If the tooth underneath cannot support a new crown, alternatives such as an implant may be discussed.

What Affects the Cost of a Crown?

Crown cost depends on the material, whether a build-up or post is needed, lab fees, and whether the crown is made in the office or at a lab. Many dental plans cover crowns under major services. Sky Dental Centre provides a written cost breakdown before treatment and helps you understand your coverage. Read our guide to the cost of a dental crown in Ontario.

Signs a Tooth May Need a Crown

•        A large or failing filling

•        A crack or broken cusp

•        A tooth that has had root canal treatment

•        Severe wear from grinding

•        A discoloured or misshapen tooth that other options cannot fix

Dental Crown Lifespan: The Bottom Line

Most crowns provide many years of service, and research shows about 95% to 97% survival at five years for common crown types. Choosing the right material for the tooth, protecting crowns from grinding and hard foods, cleaning carefully at the gumline, and attending regular checkups all help your crown last as long as possible.

When to Call About a Crown

Call the office if a crown feels loose, if you notice a gap or dark line at the gumline, if biting hurts, or if the crown chips. Early attention often allows a simpler fix and protects the tooth underneath.

Key Takeaways

•        Many crowns last a decade or longer; research shows about 95% to 97% survival at five years for common crown types.

•        Material, tooth position, grinding, and hygiene affect dental crown lifespan.

•        Decay at the crown edge is a common reason for replacement.

•        Some problems can be repaired; others need a new crown.

•        Regular checkups and good home care help crowns last.

Frequently Asked Questions

Can a dental crown last a lifetime?

Some do, but most eventually need repair or replacement. Good care and regular checkups help crowns last as long as possible.

Can decay happen under a crown?

Yes. Decay can start at the edge of the crown along the gumline. Brushing, cleaning between teeth, and checkups help prevent it.

What should I do if my crown falls off?

Keep the crown safe, avoid chewing on that side, and contact the office. It may be possible to re-cement it.

Are same-day crowns as strong as lab crowns?

Same-day crowns are made from durable ceramic materials. Your dentist will advise whether a same-day crown suits your tooth.

Does the CDCP cover crowns?

Yes, for eligible members, with pre-authorization.

Book a Crown Assessment

If you have a crown that needs attention or a tooth that may need one, book an appointment online or through the contact page. Sky Dental Centre, 2817 Arthur St E in Thunder Bay, welcomes new patients.

*This article is general information, not dental advice for your situation.*