Are Silver Amalgam Fillings Still Safe and Effective?

When it comes to dental fillings, few materials have stood the test of time like silver amalgam. Used for over 150 years, silver amalgam fillings have helped restore the smiles of millions. But in an age where aesthetics and health concerns are at the forefront of dentistry, many patients are asking the question: Are silver amalgam fillings still safe and effective?
What Are Silver Amalgam Fillings?
Silver amalgam is a mixture of metals, primarily silver, tin, copper, and mercury. The combination creates a durable, long-lasting material, but it is limited in that it’s not nearly as strong as a natural tooth. It is helpful for the filling to be small enough so that there is enough solid tooth structure around it to withstand the forces of chewing and grinding. Because of its affordability, amalgam has long been a good option for posterior (back) teeth where cosmetic appearance is less of a concern.
Advantages of Silver Amalgam
- Durability: In certain situations, Amalgam fillings can last 10 to 15 years (and often longer) with proper oral hygiene.
- Strength: With small to medium fillings it is good for molars and other teeth that endure moderate chewing pressure.
- Cost-Effective: Generally, more affordable than composite (tooth-colored) fillings.
- Quick Application: The procedure is typically faster and less technique-sensitive than composite placement.
Disadvantages of Silver Amalgam
These are some of the reasons Dr. Murdoch has not placed silver fillings for nearly 30 years:
- Mercury poisoning: Mercury vapor from amalgam fillings can be inhaled and absorbed, potentially leading to mercury poisoning.
- Neurological Problems: Exposure to mercury can affect the nervous system, causing symptoms like headaches, tingling in hands and feet, muscle weakness, insomnia, and memory problems.
- Allergic Reactions: Some individuals may be allergic to the metals in amalgam, leading to symptoms like rashes, itching, or inflammation in the mouth.
- Other Potential Issues: Some studies have also linked amalgam fillings to kidney problems, digestive issues and reproductive problems.
- Medium to large fillings do not withstand the force of moderate to heavy chewing.
- Over time, silver amalgam fillings do corrode in the mouth and placing and removing amalgam fillings have always been a concern.
Should You Replace Your Silver Fillings?
Unless your amalgam filling is cracked, leaking, or otherwise compromised, replacement isn’t usually necessary. However, if you’re interested in a healthier and/or cosmetic option, such as composite resin or ceramic, we would be happy to discuss the pros and cons at your next dental visit.
Modern Alternatives
Today’s dental patients have options, including:
- Composite Resin Fillings: Tooth-colored and ideal for small to mid-sized restorations.
- Ceramic or Porcelain Inlays/Onlays: Excellent for aesthetics and durability.
- Gold Fillings: Long-lasting and biocompatible, though more costly.
- Gold or Ceramic Crowns: Excellent to restore as much strength for the tooth as possible.
Conclusion
While the American Dental Association (ADA), U.S. Food and Drug Administration (FDA), and World Health Organization (WHO) considers silver amalgam fillings generally safe, reliable, and cost-effective choice for many dental patients. However, Dr. Murdoch does not offer silver amalgam as an option. Our goal is to help you make the most informed decisions about your oral health. Whether you are considering a new filling or exploring replacement options, we help you determine what’s best for you!
Ready to Discuss Your Filling Options or Have Questions? Schedule an appointment with Dr. Murdoch and our caring team today. Call us at (303) 355-6340 or go to https://www.murdochdds.com
April 30, 2025