By Joseph Brier, DMD, FAGD, Dental Care of Lucas

Many people have questions about the mercury found in silver, or amalgam, fillings and it’s completely understandable. Amalgam fillings have been used for well over a century, and while they remain durable and effective, concerns about mercury exposure have become more common in recent years. Fortunately, scientific research and guidance from major health organizations provide clear reassurance.

Amalgam fillings do contain mercury, but it’s important to understand how it’s used. The mercury in these fillings is mixed and chemically bonded with other metals, such as silver, tin, and copper. This bonding stabilizes the material and significantly limits the amount of mercury vapor released. According to extensive studies reviewed by the American Dental Association (ADA), the U.S. Food & Drug Administration (FDA), and the World Health Organization (WHO), amalgam fillings are considered safe for adults and for children over the age of six. These organizations continuously review new data, and their stance remains that amalgam poses no proven health risk for the general population.

What many people don’t realize is that removing amalgam fillings unnecessarily can actually create more exposure than leaving them alone. When a dentist removes a silver filling, especially one that is otherwise functioning well, the process can generate additional mercury vapor due to drilling and friction. For this reason, most dental professionals recommend keeping existing amalgam fillings in place unless there’s a clear dental reason to replace them. Common reasons to remove or repair a filling include cracks, leakage, new decay forming underneath, or discomfort.

That said, modern dentistry offers several excellent alternatives. If you are concerned about mercury or simply prefer the appearance of tooth-colored restorations, your dentist can discuss composite resin fillings or, in some cases, porcelain or gold options. These materials blend naturally with your teeth and are commonly used in both new fillings and safe replacement procedures when needed. Your dentist can help you weigh the benefits and potential risks of swapping out an old filling, taking into account your oral health, medical history, and personal preferences.

Regular dental checkups are the best way to monitor your existing fillings, whether silver or tooth-colored. Your dentist will evaluate their condition, make sure they are functioning properly, and recommend treatment only when necessary.

For most people, silver fillings are safe, stable, and effective. Unnecessary removal is not recommended and may cause more harm than good. With routine dental care and open communication with your dentist, you can feel confident that your smile, and your overall health, are well protected.

For more information, visit us at dentalcareoflucas.com.