Dental crowns and bridges are popular restorative solutions for damaged or missing teeth, offering both functional and aesthetic benefits. However, like any dental restoration, they do not last forever.
If you’ve recently had a crown or bridge placed, or if you’re considering one, you might be wondering: How long do dental crowns and bridges last? The answer depends on several factors, including materials, oral hygiene habits, and lifestyle choices.
This guide will break down the expected lifespan of dental crowns and bridges, the factors that affect their longevity, and how to make them last as long as possible.
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TLDR – Quick Guide
- Crowns and bridges typically last 10–20 years, depending on materials and maintenance.
- Porcelain looks great but chips easier; gold and zirconia last longer under pressure.
- Grinding, poor hygiene, and hard foods can shorten their lifespan significantly.
- Regular brushing, checkups, and avoiding bad habits keep restorations going strong.
- If your crown feels loose or worn, it’s time to let your dentist take a closer look.
How Long Do Dental Crowns and Bridges Last?
Average Lifespan of Dental Crowns
- Porcelain Crowns: 10 to 15 years
- Porcelain-Fused-to-Metal (PFM) Crowns: 10 to 20 years
- Metal Crowns (Gold or Alloy): 20+ years
- Zirconia Crowns: 15 to 20 years
With proper care, some crowns can last even longer, but their longevity varies depending on oral habits and maintenance.
Average Lifespan of Dental Bridges
- Traditional Bridges: 10 to 15 years
- Implant-Supported Bridges: 15 to 20 years
- Cantilever and Maryland Bridges: 5 to 10 years
Bridges typically last a decade or more, but factors like bite pressure, gum health, and bridge material can impact their durability.
Factors That Affect the Longevity of Crowns and Bridges
1. Material Choice
Different materials offer varying levels of durability:
- Porcelain looks natural but is more prone to chipping.
- Porcelain-fused-to-metal (PFM) combines aesthetics with strength.
- Gold and metal alloys are extremely durable but less natural-looking.
- Zirconia offers both strength and aesthetics.
2. Oral Hygiene Habits
Good oral care is essential for preserving crowns and bridges. Neglecting brushing, flossing, and professional cleaningscan lead to decay, gum disease, and premature failure.
3. Bite Force and Teeth Grinding (Bruxism)
Excessive bite pressure, clenching, or grinding can wear down restorations. If you grind your teeth at night, wearing a custom nightguard can help protect them.
4. Gum and Bone Health
A bridge relies on adjacent teeth or implants for support. Gum disease, bone loss, or receding gums can weaken the structure and cause a bridge to fail sooner than expected.
5. Diet and Eating Habits
- Avoid hard, sticky, or chewy foods that can dislodge or crack restorations.
- Minimize sugar and acidic foods, which can lead to decay around the crown or bridge.
- Eating a balanced diet with plenty of calcium and vitamin D supports long-term dental health.
6. Dental Habits and Maintenance
- Regular dental checkups help detect early issues before they become major problems.
- Avoid using teeth as tools to open packages or bite hard objects like ice or pens.
- Smoking and excessive alcohol use can weaken oral health and gum support.
How to Extend the Life of Your Crowns and Bridges
1. Maintain Proper Oral Hygiene
- Brush twice a day with fluoride toothpaste.
- Floss daily, especially around the edges of crowns and under bridges.
- Use an antibacterial mouthwash to reduce plaque buildup.
2. Visit Your Dentist Regularly
Regular dental visits allow for early detection of wear, decay, or gum disease, ensuring restorations last longer.
3. Wear a Mouthguard if Needed
If you grind your teeth at night, a custom-fitted nightguard can prevent damage to your crowns and bridges.
4. Avoid Excessive Force on Restorations
- Do not chew ice, hard candies, or non-food objects.
- Be mindful of sticky foods like caramel or taffy, which can pull crowns loose.
5. Address Gum Health Issues Promptly
Healthy gums are essential for supporting crowns and bridges. If you notice bleeding, swelling, or recession, visit your dentist to address the issue early.
Key Takeaways
- Dental crowns typically last 10 to 20 years, depending on materials and care.
- Dental bridges last an average of 10 to 15 years but can last longer with proper maintenance.
- Material, oral hygiene, diet, and lifestyle choices significantly impact longevity.
- Regular dental checkups, good oral hygiene, and protective measures help extend the life of crowns and bridges.
- Grinding, poor gum health, or biting hard foods can shorten the lifespan of restorations.
FAQs
1. What happens if my dental crown or bridge becomes loose?
If your crown or bridge feels loose, schedule a dental visit immediately. Loose restorations can allow bacteria to enter, leading to decay or infection.
2. Can a dental crown or bridge be repaired if damaged?
Minor chips can sometimes be repaired, but severely damaged crowns or bridges may need to be replaced. Your dentist will assess the damage and recommend the best solution.
3. Do crowns and bridges require special cleaning?
Yes. Flossing under a bridge and using interdental brushes around crowns help maintain their longevity. Your dentist may recommend special cleaning tools.
4. Is it normal for a dental crown to fall out?
No, a properly placed crown should stay secure for many years. If it falls out, it may be due to decay, cement breakdown, or bite pressure. Visit your dentist to have it reattached or replaced.
5. How do I know when my dental bridge needs to be replaced?
Signs that a bridge needs replacement include:
- Looseness or movement
- Pain or sensitivity near the bridge
- Visible cracks or wear
- Gum recession or changes in bite alignment
If you experience any of these issues, consult your dentist for an evaluation.