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How Long Do Dental Fillings Last? When to Replace Them

Fillings are one of the most common dental restorations, but they’re not meant to last forever. At Inspire Dental in Tigard, patients often ask, “How long will my filling last?” The answer depends on several key factors, including the material used, your oral habits, and your overall dental health.

Let’s break down what you need to know to get the most from your dental fillings—and how to recognize when it’s time for a replacement.

Average Lifespan of Dental Fillings

Different materials have different durability. Here’s a quick overview:

Filling MaterialTypical LifespanComposite (tooth-colored)5–10 yearsAmalgam (silver)10–15 yearsGold or Ceramic15–30 yearsGlass Ionomer5 years or lessTemporary FillingsA few weeks to a few months

While some fillings may last well beyond these averages, many factors can shorten their life—like grinding your teeth, consuming acidic or sugary foods, or neglecting regular dental care.

You can learn more about the materials we use and our approach to quality restorations on our Dental Fillings page.

Signs a Filling Needs Replacing

It’s not always obvious when a filling is starting to fail. Be on the lookout for:

• Tooth sensitivity to hot, cold, or sweet foods

• Pain or discomfort when chewing

• A crack, chip, or missing piece in the filling

• Dark spots around the edges of the filling

• Rough or uneven texture on the tooth surface

• Visible gaps between the tooth and filling

A worn or damaged filling can allow bacteria to sneak in, potentially leading to decay or infection beneath the surface.

Why Fillings Fail Over Time

Even with the best materials and placement, fillings undergo a lot of stress:

• Chewing forces wear them down over time

• Exposure to temperature changes causes tiny expansions and contractions

• Oral bacteria can gradually weaken the bond between filling and tooth

• Teeth grinding (bruxism) accelerates wear and can lead to cracks

Regular checkups with your Tigard dentist are the best way to catch these issues early—before a small repair turns into a root canal or crown.

How to Help Your Fillings Last Longer

Protect your investment in your dental health by following these habits:

• Brush twice a day and floss daily

• Avoid hard objects like ice or pens that can crack fillings

• Minimize sugary and acidic foods

• Wear a nightguard if you grind your teeth

• Visit Inspire Dental for regular cleanings and exams

The better your oral care routine, the longer your fillings will serve you.

Time for a Checkup?

If it’s been a while since your last dental visit—or you’re noticing any of the signs mentioned above—schedule an appointment with our friendly team. At Inspire Dental Tigard, we’ll evaluate your existing fillings and help you decide whether repair or replacement is needed.

We use advanced materials and precise techniques to ensure your restorations are strong, natural-looking, and built to last.

Conclusion

Dental fillings are a durable solution for cavities, but they don’t last forever. Composite fillings typically last 5–10 years, while other materials may last longer with proper care. By staying proactive with your dental health, you can avoid painful surprises and keep your smile healthy for years to come.

Book your appointment today.