Dental crowns usually last about 5 to 15 years, but some can remain functional for 20 years or longer with proper care. The lifespan of a crown depends on several factors, including the crown material, oral hygiene, bite pressure, teeth grinding, eating habits, and the health of the tooth underneath.
At Central Valley Dentistry in Mesa, Arizona, dental crowns are used to protect and restore teeth that are weak, cracked, worn, broken, or damaged by decay. Our team evaluates the condition of your crown and supporting tooth to determine whether it is still healthy or needs repair or replacement. This guide explains how long dental crowns last, how different crown materials compare, what can shorten their lifespan, how to make them last longer, and the signs that may mean your crown needs attention. Understanding these factors can help you protect your investment and maintain your smile.
How Long Do Dental Crowns Last?
There is no fixed expiration date for a dental crown. Dentists usually evaluate a crown based on its condition rather than replacing it simply because it reaches a certain age. A crown may continue working well as long as it fits properly, remains stable, and the natural tooth underneath stays healthy. During routine dental visits, your dentist can check the crown edges, bite, surrounding gums, and supporting tooth for signs of wear, decay, looseness, or damage.
A newer crown may sometimes need early replacement if it cracks, becomes loose, or develops decay underneath it. On the other hand, an older crown that remains comfortable and healthy may continue functioning for many years. Because crown materials wear differently, lifespan can also vary significantly by type. The next section explains how long metal, porcelain, zirconia, ceramic, and composite resin crowns may last.
How Long Do Different Types of Dental Crowns Last?
Different crown materials have different strengths and uses. The following lifespan ranges are general estimates. Individual results can vary.
Metal and Gold Crowns
Metal and gold crowns are among the most durable types of dental crowns. They can often last 15 to 20 years or longer with good dental care. Metal crowns can withstand strong chewing forces and are less likely to chip than porcelain materials.
This makes them useful for molars and other teeth toward the back of the mouth. The main drawback is appearance. Their metallic color does not look like a natural tooth, so some patients prefer tooth-colored materials for visible areas.
Porcelain-Fused-to-Metal Crowns
Porcelain-fused-to-metal crowns combine a strong metal base with an outer layer of tooth-colored porcelain. These crowns commonly last around 10 to 15 years, although some can last longer. They provide a balance between strength and appearance.
One possible problem is that the porcelain layer can chip or wear over time. The metal underneath may then become visible. Gum changes can also sometimes expose a dark line near the crown edge.
All-Ceramic and Porcelain Crowns
All-ceramic and porcelain crowns are often chosen because they closely match the color and appearance of natural teeth. They may last around 10 to 15 years or longer when properly cared for. Their lifespan depends on the type of ceramic, the location of the tooth, and the amount of pressure placed on it.
These crowns are often preferred for front teeth because appearance is important in that area. Modern ceramic materials can also be strong enough for many other teeth.
Zirconia Crowns
Zirconia is a strong dental ceramic that can handle heavy chewing pressure. Zirconia crowns often last 10 to 15 years or longer with proper care. Because of their strength, they are commonly considered for molars and other back teeth.
Zirconia is also tooth-colored, which allows it to provide both strength and a natural appearance. The exact type of zirconia used may depend on the tooth location and the patient’s bite.
Lithium Disilicate Crowns
Lithium disilicate is another type of ceramic used for dental crowns. It is known for combining strength with a natural appearance. These crowns may last 10 to 15 years or more when the tooth remains healthy and the crown is properly maintained. They may be used on both front and back teeth depending on the patient’s dental needs, bite, and the amount of remaining tooth structure.
Resin Composite Crowns
Resin and composite crowns generally do not last as long as metal or ceramic crowns. They may last around 3 to 5 years, although the actual lifespan varies. Resin is more likely to wear, stain, or fracture under strong chewing pressure. Because of these limits, resin materials are commonly used for temporary crowns while a permanent restoration is being prepared.
What Factors Affect How Long a Dental Crown Lasts?
The same type of crown may last much longer for one person than another. Several factors can make a major difference.
Crown Material and Quality
The material used for the crown affects how it responds to chewing, grinding, and everyday wear. A material that works well for a front tooth may not be the best option for a back molar.
Back teeth usually handle stronger chewing pressure. Your dentist considers the tooth location, bite, appearance, and remaining tooth structure when recommending a crown material.
Oral Hygiene
The crown itself cannot develop tooth decay, but the natural tooth underneath it can. Plaque can collect along the area where the crown meets the gum. Bacteria may eventually reach the tooth and cause decay around the crown edge. Brushing twice a day and flossing or cleaning between your teeth daily can help protect the crowned tooth.
Bite Force and Chewing Habits
Dental crowns are designed to handle normal chewing. However, repeated excessive force can cause damage. Chewing ice, biting hard candy, or biting directly on very hard foods can chip or crack some crowns. You should also avoid using your teeth to open packages, cut materials, or hold hard objects.
Teeth Grinding and Clenching
Grinding and clenching can place heavy pressure on both natural teeth and crowns. Over time, this pressure may wear down the crown, cause small cracks, or even lead to a fracture. It can also affect the tooth supporting the crown. If you grind your teeth at night, your dentist may recommend a nightguard to help reduce pressure.
Condition of the Underlying Tooth
A crown depends on the natural tooth beneath it for support. If that tooth develops decay, cracks, or infection, the crown may need to be removed even if the restoration itself still looks fine. This is why regular dental examinations are important. Problems underneath a crown are not always easy to see or feel during the early stages.
Dental Work and Crown Fit
A crown should fit closely around the prepared tooth. A poor fit can create spaces where plaque and bacteria collect. This can increase the chance of decay or gum irritation. Your bite also needs to be checked. If the crown sits too high, it may receive more pressure than nearby teeth.
Diet and Daily Habits
Your eating habits can affect your crown and the tooth underneath it. Frequent sugary foods and drinks can increase the risk of decay. Sticky foods may pull on a loose crown, while very hard foods can cause chips or cracks. Habits such as nail biting, chewing pens, or biting ice can also shorten crown lifespan.
How to Make Your Dental Crown Last Longer
Good dental habits can help protect your crown and the natural tooth supporting it.
Brush and Floss Every Day: Brush your teeth twice each day with fluoride toothpaste. Floss or clean between your teeth daily, especially around the crowned tooth. Pay attention to the gum line where the crown meets the natural tooth. Keeping this area clean can reduce plaque buildup and the risk of decay.
Keep Up With Regular Dental Checkups: Regular dental appointments allow your dentist to examine the crown and surrounding tooth. A dentist can check for cracks, loose edges, gum irritation, decay, and changes in your bite. Finding a small problem early may help prevent more serious damage.
Avoid Biting Hard Objects: Do not use your crowned tooth to chew ice, hard candy, pens, fingernails, or other hard objects. Dental crowns are strong, but they are not impossible to damage.
Be Careful With Hard and Sticky Foods: You can usually eat normally with a permanent crown, but very hard and sticky foods require some care. Hard foods may crack certain crown materials. Sticky foods can sometimes pull on a restoration that has already become loose. Cutting hard foods into smaller pieces may reduce pressure on the crown.
Manage Teeth Grinding and Clenching: If you grind or clench your teeth, talk with your dentist. A nightguard may help protect crowns and natural teeth from repeated pressure while you sleep.
Follow Your Dentist’s Care Instructions: Different crown materials and dental situations may require different care. Follow the instructions your dentist gives you after the crown is placed. Contact the dental office if the crown begins to feel loose, painful, rough, or different from normal.
What Are the Signs a Dental Crown Needs to Be Replaced?
Crowns do not always fail suddenly. In many cases, there are warning signs before replacement becomes necessary.
You should schedule a dental evaluation if you notice:
- Pain around the crowned tooth
- New or increasing tooth sensitivity
- A crown that feels loose
- Cracks or chips in the crown
- A worn crown surface
- Dark areas near the crown edge
- Gum redness or swelling
- A bad taste around the tooth
- Changes in your bite
- Sharp or rough crown edges
- A crown that falls off
Not every problem means the crown must be replaced. Minor issues may sometimes be repaired, but a dentist needs to examine the tooth before deciding.
When Should a Dental Crown Be Replaced?
Dental crowns should be replaced based on their condition rather than their age alone. A crown may need replacement if it becomes badly cracked, loose, worn, or damaged. Replacement may also be needed if decay develops underneath the crown or if the supporting tooth becomes weak. A crown that is 15 years old but remains healthy may continue to work normally.
A newer crown may require replacement if it develops a serious problem. Ignoring a damaged crown can allow bacteria to reach the natural tooth. Over time, this may lead to more decay, pain, infection, or additional damage. Regular dental checkups help your dentist decide whether an older crown is still doing its job.
What Happens When a Dental Crown Needs to Be Replaced?
Replacing an old crown usually involves several steps.
Dental Examination
The dentist begins by examining the crown, tooth, gums, and bite. Dental X-rays may be needed to look for decay, infection, or other problems that cannot be seen from outside the crown.
Removing the Old Crown
The old crown is carefully removed so the dentist can examine the natural tooth. The way it is removed depends on the crown material and how securely it is attached.
Checking the Underlying Tooth
After removing the crown, the dentist checks the tooth for decay, cracks, or other damage. Any decay or damaged material must be treated before a new crown can be placed. If the tooth has lost more structure, it may need to be rebuilt to provide enough support.
Preparing for the New Crown
The tooth is prepared so the replacement crown can fit properly. Your dentist may take a traditional impression or a digital scan to record the tooth’s shape and bite.
Placing the Replacement Crown
The new crown is checked for fit, appearance, and bite. Once the dentist is satisfied with the fit, the crown is secured in place. Some crown systems may allow suitable patients to receive the restoration in a shorter treatment process.
Do Dental Crowns Last Longer Than Veneers?
Crowns and veneers are different dental restorations, so comparing their lifespan alone does not tell you which treatment is better. A dental crown covers most or all of the visible part of a tooth. It is often used when a tooth is weak, cracked, badly worn, or has lost a large amount of structure.
A veneer is a thin layer placed over the front surface of a tooth. Veneers are mainly used to change cosmetic concerns such as color, shape, small gaps, or minor chips. Both can last many years with proper care. However, a crown generally provides more coverage and protection to a damaged tooth. The best option depends on the condition of your tooth, not simply which restoration may last longer.
Can Dental Crowns Go on Dental Implants?
Yes. Dental crowns are commonly used as the visible replacement tooth on dental implants. A traditional crown is placed over a prepared natural tooth. An implant crown attaches to a dental implant that has been placed in the jawbone. The implant itself and the crown are separate parts.
This means the implant may remain healthy while the crown above it eventually becomes worn, chipped, loose, or damaged. The lifespan of an implant crown depends on crown material, bite pressure, oral hygiene, grinding habits, and regular dental care.
Conclusion
Dental crowns usually last around 5 to 15 years, but their lifespan can vary depending on the material, daily care, bite pressure, teeth grinding habits, crown fit, and the condition of the natural tooth underneath. Some crowns may last 20 years or more when they are properly maintained.
Taking care of your crown with regular brushing, flossing, dental checkups, and avoiding damaging habits like chewing ice or hard objects can help extend its life. Metal, zirconia, porcelain, ceramic, and composite resin crowns all have different durability levels, so the best option depends on your specific dental needs.
If your crown becomes loose, cracked, painful, worn, or feels different when you bite, it may need to be checked by a dentist. Central Valley Dentistry in Mesa, AZ can examine your crown and recommend the right solution to protect your tooth and maintain your smile.
Protect Your Crown With Central Valley Dentistry in Mesa, AZ
Is your dental crown old, loose, chipped, painful, or starting to feel different? Central Valley Dentistry in Mesa, AZ can examine the crown and the natural tooth underneath it to determine whether the restoration is still healthy or may need repair or replacement. Contact a dental crown evaluation with Central Valley Dentistry to check your restoration, protect the supporting tooth, and discuss the right next step for your smile.
Frequently Asked Questions
How long do dental crowns last on average?
Dental crowns usually last about 5 to 15 years, although many can last longer. Crown material, oral hygiene, bite pressure, grinding habits, and the condition of the supporting tooth can all affect lifespan. Regular dental care can help identify problems before they become serious.
Can a dental crown last 20 years?
Yes, some dental crowns can last 20 years or longer with good care. Brushing, flossing, regular dental visits, and avoiding damaging habits can help extend crown life. However, no dentist can guarantee that every crown will last for a specific number of years.
Do crowns last longer on front or back teeth?
There is no simple rule because both areas face different types of pressure. Back teeth handle strong chewing forces, while front teeth may experience stress from biting or injuries. Crown material, bite, grinding, and oral care often matter more than tooth location alone.
Which type of dental crown lasts the longest?
Metal and gold crowns are known for their long-term durability and resistance to wear. Zirconia and other modern ceramic crowns can also provide strong results. Your dentist will recommend a material based on tooth location, bite pressure, appearance, and dental needs.
Can a dental crown last a lifetime?
A crown may last for several decades, but dental crowns are not considered lifetime restorations. Crowns can wear, chip, loosen, or develop other problems over time. The natural tooth underneath can also develop decay even when the crown itself remains strong.
Why does my dental crown hurt after several years?
Pain around an older crown may be caused by decay, a cracked tooth, gum problems, bite changes, or teeth grinding. Sometimes the problem develops underneath the crown where you cannot see it. New or ongoing pain should be examined by a dentist.
How often should dental crowns be replaced?
There is no fixed schedule for replacing dental crowns. A crown should usually be replaced when it becomes damaged, loose, poorly fitting, worn, or when the tooth underneath develops a problem. A healthy older crown may continue working for many years.
Can a damaged dental crown be repaired instead of replaced?
Small chips or rough areas may sometimes be repaired or polished. Larger fractures, severe wear, a loose crown, or decay underneath may require full replacement. A dental examination is needed to determine which option is appropriate.
How long do composite resin crowns last?
Composite resin crowns may last around 3 to 5 years, although lifespan varies based on crown location, bite pressure, oral hygiene, and daily habits. Resin is more prone to wear and fracture than many ceramic or metal crown materials, so it is commonly used for temporary crown.
