How Long Do Dental Fillings Last? Signs Your Filling Needs to Be Replaced

Dental fillings are designed to restore teeth affected by decay, but they are not intended to last forever. Daily chewing, normal wear, and changes in your enamel can cause fillings to weaken over time. Understanding how long fillings typically last and the signs that they need to be replaced can help you protect your oral health and avoid more serious dental problems.

How Long Do Dental Fillings Usually Last?

Most dental fillings last anywhere from five to fifteen years, depending on the type of material, your oral hygiene routine, and your everyday habits. Composite fillings often last between five and ten years, while amalgam fillings may last slightly longer. Even with excellent care, all fillings eventually reach the point where replacement is necessary.

What Causes a Filling to Wear Out?

Fillings naturally deteriorate as they are exposed to constant pressure and temperature changes. Certain habits can make fillings wear out more quickly, including:

• Teeth grinding
• Chewing on hard foods or ice
• Clenching your jaw
• Inconsistent brushing or flossing
• Delaying routine dental visits

When a filling begins to break down, the tooth becomes more vulnerable to bacteria and decay.

Signs Your Filling Needs to Be Replaced

Even if you do not feel discomfort, a worn filling can lead to serious issues. Look for these common signs that it may be time for a replacement:

1. Increased Sensitivity

If you notice sensitivity to cold, heat, sweets, or pressure, the filling may have weakened or pulled away from the tooth.

2. A Visible Crack or Chip

Fillings can fracture as they age. Even a small crack allows bacteria to enter and puts the tooth at risk for decay.

3. Pain When Chewing

If biting down causes discomfort, your filling may be damaged or no longer properly bonded to the tooth.

4. A Rough or Worn Texture

Run your tongue across the filling. If it feels sharp or uneven, the material may be wearing down.

5. Dark Spots Around the Edges

Discoloration around a filling may indicate decay has formed underneath it.

Why Replacing a Filling Matters

A worn or damaged filling cannot fully protect the tooth. Leaving it untreated may lead to:

• New cavities
• Tooth fractures
• Infection
• The need for a crown or root canal

Replacing a filling at the right time helps preserve your tooth structure and prevents more complex treatment.

How Your Dentist Evaluates Your Fillings

During your regular appointments, your dentist checks your fillings for signs of wear, leakage, or gaps. Dental X-rays can reveal issues you may not see or feel, making routine visits essential for long term oral health.

The Bottom Line

Dental fillings are strong and reliable, but they do not last forever. Watching for changes and maintaining regular dental checkups helps ensure that fillings are replaced before problems develop. If you have concerns about tooth sensitivity or think a filling may be failing, a simple evaluation can give you clarity and peace of mind.

Book Your Appointment at Espire Dental

If you think a filling may need attention or want a professional evaluation, schedule your visit at Espire Dental today. Our team is here to keep your smile healthy and comfortable for years to come.

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