How Long Do Fillings Last on Teeth?

If you have ever had a cavity treated, you have likely wondered at some point: How long do fillings last on teeth? Is it something you will need to replace in a few years, or can it last decades?

The truth is that fillings are strong, but they are not permanent. Over time, daily chewing, temperature changes, and normal wear affect every restoration. Some fillings last many years without issue. Others may need attention sooner.

At Amber Hills Dental in Henderson, NV, Dr. Aimee Villamayor and Dr. Kevin Le evaluate existing fillings during routine exams to ensure they remain secure and sealed. Understanding what affects the lifespan of a filling can help you take simple steps to extend its longevity.

The Average Lifespan of Dental Fillings

The material used plays a significant role in how long fillings last on teeth.

In general:

• Tooth-colored composite fillings last about seven to ten years
• Silver amalgam fillings often last ten to fifteen years, and sometimes longer
• Larger fillings tend to wear out sooner than smaller ones

These are averages, not guarantees. Some patients have fillings that last twenty years. Others may need replacement earlier due to bite pressure, grinding, or decay forming around the edges.

Location also matters. Fillings placed in molars endure more chewing force than those in front teeth. As a result, back teeth restorations often experience more stress over time.

Why Fillings Eventually Need Replacement

Fillings typically fail gradually, not suddenly. They may weaken, crack, or develop small gaps along the edges.

Several factors influence their lifespan:

• Constant chewing pressure
• Teeth grinding or clenching
• Large cavity size
• Diet high in sugar or acid
• Inconsistent oral hygiene
• Natural aging of dental materials

Every time you chew, your teeth flex slightly. Over years, that movement can cause microscopic wear. For patients who grind their teeth at night, this stress increases significantly.

Another common issue is recurrent decay. Even though the filling itself cannot decay, the natural tooth around it can. If bacteria accumulate along the margins, a new cavity can develop underneath or around the restoration.

Routine exams help detect these changes early.

Signs a Filling May Be Wearing Out

Many failing fillings do not cause immediate pain. That is why regular checkups are important. However, there are certain signs that may indicate a problem.

You may notice:

• Sensitivity to hot, cold, or sweets
• Pain when biting down
• A rough or chipped edge
• Darkening around the filling
• Food frequently getting stuck in one spot

In some cases, a filling may loosen or fall out completely. If that happens, the exposed tooth should be evaluated promptly to prevent further damage.

The earlier a worn filling is addressed, the simpler the treatment tends to be.

Can Fillings Last Longer With Good Care?

While no filling lasts forever, you can absolutely influence how long yours remains intact.

Daily habits matter. Brushing twice a day and flossing consistently help prevent decay from forming around the edges. Keeping the surrounding gum tissue healthy also protects the foundation of the tooth.

It also helps to:

• Avoid chewing ice or hard objects
• Limit sugary beverages
• Wear a nightguard if you grind your teeth
• Keep up with routine dental visits

For patients who grind or clench, a custom nightguard can significantly extend the life of fillings by reducing excessive pressure during sleep.

Small preventive steps often make a meaningful difference over time.

How Long Do Fillings Last on Teeth at Amber Hills Dental in Henderson, NV?

Every patient is different. Some fillings remain strong for well over a decade. Others may require replacement sooner depending on wear and oral habits.

At Amber Hills Dental in Henderson, NV, Dr. Aimee Villamayor and Dr. Kevin Le carefully monitor existing fillings during routine exams to ensure they remain secure and functional. If a filling shows signs of wear, early intervention can prevent more extensive treatment later.

If you are experiencing sensitivity, notice changes in an older filling, or simply have not had your restorations checked recently, contact Amber Hills Dental in Henderson, NV to schedule an appointment. Regular evaluations help protect your teeth and keep your smile healthy for years to come.

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Categorised in: Dental Fillings