Signs Your Amalgam Fillings Should Be Replaced

Amalgam, also known as silver fillings, was once the standard for repairing cavities. While durable, these fillings often bring long-term problems that affect both appearance and oral health. Knowing when to replace amalgam fillings can help you avoid complications and restore confidence in your smile.

At Cosmetic Dentistry by Dr. Ned Shimizu in Houston, TX, patients receive care from one of only 85 Accredited Fellows of the American Academy of Cosmetic Dentistry (AACD) worldwide, and one of only three in the state of Texas. Dr. Shimizu holds dual DDS degrees from Hiroshima University in Japan and Loma Linda School of Dentistry in California. With advanced training in veneers, cosmetic bonding, and full-mouth rehabilitation, as well as recognition from the AACD’s People’s Choice Award, he blends scientific precision with artistic vision to restore smiles using safe, natural-looking composite fillings.

Cracks or Fractures in Teeth

Amalgam expands and contracts in response to temperature changes, placing stress on the surrounding tooth. Over the years, this stress can cause tiny fractures that gradually worsen. Left untreated, these cracks may lead to pain, tooth sensitivity, and even the loss of the affected tooth. Replacing worn amalgam with composite can help preserve the tooth’s long-term health.

Discoloration Around the Filling

Silver fillings can leach into nearby enamel, leaving the tooth with a dark, grayish hue. This staining not only makes the smile less appealing but can also indicate that the filling has begun to break down. Discoloration often signals the need for a replacement that restores both appearance and function.

Increased Sensitivity or Pain

When amalgam fillings no longer fit tightly, gaps form, allowing bacteria and food debris to enter. This breakdown can cause sensitivity to hot, cold, or pressure and may result in discomfort while chewing. Ongoing pain or sensitivity should be evaluated promptly to prevent further decay or infection.

Wear and Tear Over Time

The average lifespan of an amalgam filling is 10 to 15 years. Beyond this point, the material often weakens and no longer protects the tooth effectively. Worn fillings may chip, corrode, or loosen, leaving the underlying tooth vulnerable to damage. Regular dental checkups help determine when replacement is necessary.

Metal Allergies or Health Concerns

Amalgam contains metals such as nickel and mercury that can trigger sensitivities in certain patients. Symptoms may include oral irritation, a metallic taste, or broader health concerns related to mercury exposure. Choosing composite fillings eliminates these risks while delivering a stronger, more natural-looking restoration.

Restore Your Smile with Dr. Ned Shimizu

If you notice cracks, discoloration, or pain around your amalgam fillings, it may be time for an upgrade. Contact Cosmetic Dentistry by Dr. Ned Shimizu in Houston, TX, at 281-531-0710 to learn how replacing silver fillings with composite can protect your teeth and revitalize your smile.