Many dental bridges last 10 years or more, and some last well beyond that with good care. A widely cited research review estimated that about 89% of conventional tooth-supported bridges were still in place after 10 years. How long a dental bridge lasts depends on the bridge type, the health of the supporting teeth, your cleaning habits and whether you grind your teeth.
A bridge replaces one or more missing teeth by joining a false tooth, called a pontic, to crowns on the teeth or implants either side of the gap. Because it depends on those supporting teeth, keeping them healthy matters as much as the bridge itself. This guide from Barton Dental covers average dental bridge lifespan, how bridge types compare, what affects longevity, why bridges fail, warning signs, repair options and how to make your bridge last, with details for patients at our office in Hamilton.
What Is the Average Dental Bridge Lifespan?
The average dental bridge lifespan is commonly quoted as 5 to 15 years, and research supports the upper end for many patients. A summary of systematic reviews found about 94% of conventional bridges still functioning at 5 years and about 89% at 10 years. Some bridges last 20 years or longer; others fail sooner.
Those figures come from Pjetursson and Lang, writing in the Journal of Oral Rehabilitation. “Survival” means the bridge is still in the mouth, even if it has needed minor repairs. Your own bridge may last a shorter or longer time than average depending on the factors below, which is why regular check-ups matter. Newer all-ceramic and zirconia bridges are widely used, but they have shorter follow-up in research than porcelain-fused-to-metal bridges, so long-term comparisons are less certain.
How Long Do Different Types of Bridges Last?
Different bridge designs have different track records. Conventional bridges supported by crowns on both sides show strong long-term survival, and implant-supported bridges perform similarly. Cantilever bridges, supported on one side, and resin-bonded bridges, bonded behind neighbouring teeth, show lower survival over 10 years.
| Bridge Type | Support | Estimated 5-Year Survival | Estimated 10-Year Survival |
| Conventional | Crowns on teeth either side | 93.8% | 89.2% |
| Cantilever | Crown on one neighbouring tooth | 91.4% | 80.3% |
| Implant-supported | Implants | 95.2% | 86.7% |
| Resin-bonded (Maryland), newer review | Wings bonded behind teeth | 91.4% | 82.9% |
Sources: Pjetursson and Lang 2008 for the first three rows; Thoma et al. 2017 in Clinical Oral Implants Research for resin-bonded bridges. These are averages across many studies, mostly of established materials such as porcelain fused to metal.
What Affects the Lifespan of a Dental Bridge?
The main factors affecting a bridge’s lifespan are the material, your oral hygiene, the bridge’s position in the mouth, the health of the supporting teeth and habits such as grinding. Several of these are within your control.
Material used
Porcelain-fused-to-metal and all-ceramic bridges, including zirconia, are widely used for their strength and appearance. The best material depends on the bridge’s position and your bite.
Oral hygiene
Plaque collects around the supporting crowns and under the pontic. Without daily cleaning, decay and gum disease can develop around the supporting teeth and shorten the bridge’s life.
Location in the mouth
Back-tooth bridges take heavier chewing forces than front bridges and may experience more wear and stress over time.
Condition of the supporting teeth
A bridge is only as strong as the teeth holding it. Decay, nerve problems or gum disease in those teeth are among the common reasons bridges fail.
Lifestyle habits
Grinding (bruxism), nail-biting, chewing ice and using teeth as tools can chip or loosen a bridge. A night guard can help protect it if you grind.
Why Do Dental Bridges Fail?
Bridges often fail because of problems with the supporting teeth rather than the bridge itself. For conventional bridges, decay at the crown edges and loss of pulp vitality, where the nerve of a supporting tooth dies, are among the most common biological complications. Mechanical failures include loosening, chipping and fracture.
| Cause | What Happens |
| Decay at the crown edge | Bacteria undermine a supporting tooth beneath the crown |
| Nerve damage in a support tooth | The tooth may need root canal treatment |
| Gum disease and bone loss | Support for the bridge weakens |
| Loss of cement or bond | The bridge loosens or comes off |
| Fracture or chipping | Porcelain chips, often from grinding |
What Are the Signs a Bridge Needs Attention?
Signs that a bridge needs attention include new sensitivity or pain, a bridge that feels loose or moves, a bad taste or odour, bleeding or receding gums around the supporting teeth, and visible chips or cracks. Early assessment often allows a simpler fix.
| Sign | Possible Cause |
| Persistent discomfort or sensitivity | Decay or nerve problems in a support tooth |
| Looseness or shifting | Cement failure or decay underneath |
| Bad taste or smell | Food trapped under the pontic, or decay |
| Receding or bleeding gums | Gum inflammation around the supports |
| Visible damage or wear | Chipping, often from grinding |
Some problems cause no symptoms, so X-rays at regular check-ups help find decay under a crown edge before it becomes serious.
Can a Bridge Be Repaired Instead of Replaced?
Sometimes. A bridge that has come loose but has healthy supporting teeth can often be cleaned and re-cemented, and small porcelain chips can sometimes be smoothed or repaired. Significant decay under a supporting crown, a fractured supporting tooth or major damage usually means the bridge needs replacing.
If a replacement is needed, the plan may change. A supporting tooth may need a root canal, a longer bridge or an implant. If your bridge comes off, keep it, avoid chewing on that side and book an appointment. Our guide to dental bridge cost in Ontario explains what affects the cost of a new bridge.
How Do You Make a Dental Bridge Last Longer?
You can help a bridge last longer by cleaning under the false tooth every day, brushing twice daily with fluoride toothpaste, keeping regular check-ups and cleanings, wearing a night guard if you grind, avoiding hard objects and addressing problems early.
- Clean under the pontic daily with a floss threader, superfloss, interdental brushes or a water flosser.
- Brush along the gumline where the crowns meet the gums.
- Use fluoride toothpaste to help protect crown edges from decay.
- Keep regular check-ups so margins and supporting teeth can be monitored.
- Avoid chewing ice, pens or packaging.
- Wear a night guard if you clench or grind; see our TMJ Therapy page.
How Does a Bridge’s Lifespan Compare With Implants and Dentures?
A conventional bridge and an implant-supported crown have similar 10-year survival in research reviews, both close to 90%. Removable partial dentures usually need relining and eventual replacement as the gums and bone change, and their clasps rest on neighbouring teeth. The best option depends on your teeth, bone and priorities, not lifespan alone.
| Option | Typical Long-Term Picture | Depends On |
| Conventional bridge | About 89% at 10 years in reviews | Health of the supporting teeth |
| Single implant and crown | About 89% at 10 years in the same review | Bone, gums and implant maintenance |
| Partial denture | Relines and replacement over time | Fit, clasps and gum changes |
What Happens When a Bridge Is Replaced?
When a bridge needs replacing, your dentist removes it, treats any decay or problems in the supporting teeth, then takes new impressions or scans for a new bridge. A temporary bridge protects the teeth while the lab works. Sometimes the plan changes, for example to a longer bridge or an implant, if a support tooth is no longer strong enough.
- Assessment: exam and X-rays of the supporting teeth, gums and bone.
- Removal: the old bridge is sectioned or lifted off.
- Treatment: decay is removed; a root canal or core build-up may be needed.
- Records: new impressions or scans, with a temporary bridge in place.
- Fitting: the new bridge is checked for fit and bite, then cemented.
Replacing a bridge before decay spreads is usually simpler and less costly than waiting until a supporting tooth is lost.
Dental Bridges at Barton Dental in Hamilton
At Barton Dental, at 100-1130 Barton St. E, our general dentists provide traditional and implant-supported bridges in zirconia, all-ceramic (E-max) and porcelain-fused-to-metal materials. At each visit we examine the crown margins, surrounding gums and bite, and digital X-rays help us check the supporting teeth and bone. If you would like help choosing floss threaders or interdental brushes for cleaning under your bridge, ask at your next appointment. You receive a complete written cost breakdown before any treatment, and we direct bill most insurance providers.
Learn more on our Crowns & Bridges page, read What Are Crowns and Bridges?, or see how long dental crowns last. If you are comparing a bridge with an implant, our Dental Implants page explains that option.
Frequently Asked Questions
How long does a dental bridge usually last?
Many dental bridges last 10 years or more. Research reviews estimate that about 89% of conventional tooth-supported bridges are still in place after 10 years, and some last 20 years or longer. Lifespan depends on the bridge type, the health of the supporting teeth, how well you clean under the bridge and whether you grind your teeth. Regular check-ups help catch problems early.
Do implant bridges last longer than regular bridges?
Not necessarily. In the reviews summarized here, implant-supported bridges had about 87% survival at 10 years, similar to conventional bridges at about 89%. The main advantage of implant bridges is that they do not rely on natural neighbouring teeth, which are often the weak point in a conventional bridge. The better option depends on your bone, health and the condition of the teeth beside the gap.
What is the most common reason a bridge fails?
For conventional bridges, common problems involve the supporting teeth: decay where the crown meets the tooth, and nerve damage that may need a root canal. Mechanical issues such as loosening or chipped porcelain also occur, often linked to grinding. Daily cleaning under the bridge and regular check-ups with X-rays are the best ways to help prevent these problems or catch them while they are simple to treat.
Can a bridge that came off be glued back on?
Often, if the bridge is intact and the supporting teeth are healthy. Your dentist will clean the bridge and teeth, check for decay and re-cement it. If there is decay or damage underneath, the teeth may need treatment and the bridge may need replacing. Keep the bridge safe, avoid chewing on that side and book an appointment promptly, because exposed teeth can become sensitive or shift.
Why does food get stuck under my bridge?
A small space under the false tooth is normal so that you can clean it, and food can collect there. Daily cleaning with a floss threader, interdental brush or water flosser keeps the area healthy. If food traps more than before, or the gum feels sore or bleeds, ask your dentist to check the fit and the gums, as it can be an early sign of a problem.
Book a Bridge Check in Hamilton
How long dental bridges last depends largely on the supporting teeth and your daily care, and many bridges serve well for 10 years or more. Regular check-ups and early attention to small problems are effective ways to protect yours.
If your bridge feels different, or you are considering a new one, request an appointment online or call 905-524-3835. We will check your bridge and supporting teeth and explain your options clearly.
This article is general information, not dental advice for your situation. Speak with a dentist about your own bridge and teeth.