Is It Time to Replace That Old Filling or Crown?

If you've had the same filling or crown for years, you may wonder whether it's still doing its job. That's a smart question to ask. Research has found that many dental restorations continue performing well for years. But larger restorations often require additional treatment sooner.

Restorative dental work plays an important role in protecting damaged teeth and helping you chew, speak, and smile comfortably. Even so, dental fillings, crowns, and other restorations don’t last forever. 

Years of chewing, everyday wear and tear, changes in your bite, and new decay can all affect how well they function. The good news is that many issues develop gradually. This allows your dentist to identify and address them before they become more serious.

In this article, you'll learn how long common restorations usually last, what causes them to wear out, and the signs that it may be time to visit the best dentist in Mountain View to replace your dental restorations. 

How Long Do Fillings, Crowns, and Other Dental Restorations Last?

One of the most common questions patients have is how long dental fillings, crowns, and other restorations last. The answer varies depending on the type of dental restoration, the filling material used, its location in your mouth, and your daily habits.

While every patient is different, these general timelines provide a helpful starting point:

• Composite Filling Lifespan: About 5 to 10 years
• Amalgam Filling Lifespan: Around 10 to 15 years or longer
• Dental Crown Lifespan: Approximately 10 to 15 years, though many last much longer with excellent care

It’s important to note that these numbers are averages. Some old fillings or crowns continue protecting teeth for decades, while others need attention much sooner.

Several factors influence dental restoration lifespan, including:

• Your oral hygiene habits
• Your diet
• Whether you grind or clench your teeth
• The location of the restoration
• How much pressure the tooth experiences when you chew

What Causes Dental Work to Wear Out?

Even the highest-quality dental restorations experience wear over time. Daily use, changes in your mouth, and certain habits can all shorten the lifespan of a filling, crown, or other restoration. Some of the most common causes include:

• Every Day Chewing and Biting: Every meal places pressure on your teeth and restorations. Over time, everyday chewing can gradually weaken dental restorations, increasing the likelihood of worn dental fillings, loose crowns, and other issues.
• Teeth Grinding and Clenching: Grinding your teeth, especially while you sleep, places excessive force on both natural teeth and restorations. Over time, this habit can contribute to cracked fillings and dental crown damage.
• New Decay Around Older Restorations: Fillings and crowns don't make teeth immune to cavities. Over time, bacteria can work their way beneath or around an aging restoration and begin damaging the underlying tooth. As that damage progresses, the restoration may no longer protect the tooth as intended and may need to be replaced.
• Changes in Your Bite or Tooth Structure: Teeth naturally shift over time, and the tooth supporting a restoration can change as well. Even small changes in your bite can place uneven pressure on a restoration, affecting how well it fits and functions.

Why Regular Dental Exams Matter for Older Restorations

A filling or crown can look and feel perfectly fine while problems develop beneath the surface. Small cracks, worn edges, or new decay around a restoration may not cause symptoms until the damage becomes more advanced.

That's why regular dental exams are so important. Your dentist can evaluate existing restorations for signs of wear, check that they still fit properly, and look for changes that could affect the health of the tooth. Dental X-rays can also reveal hidden decay or damage that isn't visible during a visual exam.

Routine checkups are a key part of preventive dentistry because they help identify problems with fillings, crowns, and other restorations before they require more extensive treatment.

Signs It May Be Time to Replace a Filling or Crown

Although only a dental exam can determine whether a restoration needs replacement, these signs may indicate it's time for a professional evaluation:

• Sensitivity to hot, cold, or sweets
• Pain when biting or chewing
• A cracked filling, chipped crown, or rough edges
• A loose crown or filling
• Food frequently getting trapped around the restoration
• Visible wear or darkening around the restoration
• A filling or crown that simply feels different from how it used to

Not every symptom means a filling or crown needs replacement, but an exam can help determine the most appropriate treatment option.

Best Dentist Mountain View: When to Have Your Dental Work Evaluated

Fillings, crowns, and other dental restorations can last for many years, but they won't last forever. Paying attention to changes in how your dental work looks or feels and scheduling regular checkups can help you avoid more serious dental problems later.

At Jennifer Silvers, DDS, Dr. Jennifer Silvers and Dr. Rafia Chaudhry are dedicated to helping patients protect and restore healthy smiles through personalized, high-quality dental care. Dr. Silvers earned her Doctor of Dental Surgery degree from the University of the Pacific, Arthur A. Dugoni School of Dentistry, where she currently serves as a faculty member teaching future dentists. Dr. Chaudhry graduated from Tufts School of Dental Medicine and brings years of private practice experience with a strong commitment to providing comfortable dental care.

If you're looking for the best dentist in Mountain View to evaluate old fillings, crowns, or other restorations, schedule an appointment at our dental office today.