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Do crowns and bridges last forever?

Unfortunately, nothing lasts forever. In an ideal world your teeth should last for your lifetime.

Just as you may have problem with your natural teeth, bridges and teeth with single crowns are subject to problems. These problems include recurrent decay, recession and exposure of crown margins, fracture or porcelain, periodontal disease and fracture of the teeth, to name a few. Remember your teeth are still under the crowns, and therefore problems can develop in addition to actual problems with the crowns themselves.

Regular check-ups and evaluations can go a long way to maintain extensive dental "work", and excellent home care is also essential in maintaining crowns and bridges for as long as possible.

Just as your car requires regular maintenance, your teeth, gums and restorations require regular continuing care to maintain optimum health.
Sometimes crowns and bridges do last the lifetime of a patient. However, most dental restorations have a limited lifespan. The failure of these crowns and bridges is usually due to the formation of a cavity where the crown and tooth meet. Excellent dental hygiene, regular visits to the dentist and the fluoride treatments have all been show to reduce the risk of these types of cavities under crowns and bridges.
Very few procedures in dentistry will last a lifetime. The average crown or bridge should last about 5-7 years. A well done crown or bridge can last longer than 10 years provided that the person has good oral hygiene and comes to the dentist at least twice a year for examinations, cleaning, and follow-up care.
Hopefully, they will last you a lifetime. Unforturnately, a crown or bridge is susceptible to a cavity just like your natural teeth. So, if you have really good oral hygiene habits, crowns will last a very long time. If you don't take care of your teeth very well, a crown won't last very long.
Probably the greatest factors in the determination of how long crowns and bridges last are the quality of the dentistry and patient's compliance to the care and maintenance that is necessary. A Mercedes-Benz automobile, for example, is known for fine craftsmanship that is built to last. However, a major factor in how long that vehicle will last is the scheduled maintenance visits -- which are very thorough, in addition to the care that the owner extends -- such as how the car is driven and kept. Similarly, crowns and bridges that are quality-made, with excellent marginal fit and a proper balanced bite, still require regular scheduled dental hygiene maintenance, as well as proper home care taken by the patient. Another factor is nutrition -- avoiding sugars and refined carbohydrates which promote an acidic environment in the mouth. Instead, go for a diet which is alkalizing, anti-inflammatory and rich in antioxidants. That's probably your best chance of keeping your teeth and dental work for a lifetime.
Although crowns and bridges can last a lifetime, they typically do not last forever. The main reason for a shortened lifespan is poor oral hygiene. If you develop a cavity on a tooth adjacent to your crown or bridge, your prosthetic will fail. This means that it is important to brush and floss regularly. If you have a bridge, you need to floss the area underneath it as well. Simply brushing thoroughly twice a day and flossing once a day could significantly extend the life of your crown or bridge.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.