Mercury-Free Dentistry
In short
Alternatives to amalgam and safe removal of mercury restorations.
What mercury free dentistry means
A mercury free dentist does not place new amalgam fillings. Instead the practice uses tooth colored composite resin, porcelain, and other materials that contain no mercury. The term describes the materials a practice chooses to work with going forward, rather than a single procedure.
Mercury free is not the same as mercury safe
This distinction matters when you are choosing a dentist. Mercury free refers to not placing new amalgam. Mercury safe refers to how a dentist removes existing amalgam, using the protective steps known as the SMART protocol. A practice can be one, the other, or both. If your goal is to have old fillings taken out carefully, look for a mercury safe dentist and ask specifically about SMART. You can read the full protocol in our guide to the SMART amalgam removal protocol.
Why dentists choose to go mercury free
Dentists make the switch for several reasons. Some are concerned about mercury exposure for patients and staff. Some are responding to patient demand. Many prefer the natural appearance of tooth colored materials, and many follow a whole body philosophy that favors avoiding metals in the mouth where a good alternative exists.
What they use instead
For most fillings a mercury free dentist uses composite resin, which bonds to the tooth and matches its color. For larger restorations and crowns they often use ceramic or porcelain. To replace a missing tooth, some offer metal free implants made of zirconia, which you can read about in our guide to ceramic and zirconia implants.
Is mercury free more expensive
A composite filling can cost a little more than an amalgam filling, and insurance coverage varies by plan. For a standard filling the difference is usually modest. Larger restorations and implants are priced on their own, independent of the mercury question.
Common questions
Is amalgam dangerous?
Dental amalgam is roughly half mercury. Health authorities consider it acceptable for most adults, and in 2020 the Food and Drug Administration recommended non mercury alternatives for more sensitive groups such as pregnant women, nursing mothers, and young children. Whether to avoid or remove it is a personal decision to discuss with your dentist.
Does mercury free mean metal free?
Not always. Mercury free means no new amalgam. A practice that is also metal free avoids other metals too, such as metal crowns and titanium implants, in favor of ceramic options. If avoiding all metal matters to you, ask the practice directly.
Can I keep my old fillings?
Yes. Many dentists recommend leaving stable fillings that are not cracked, leaking, or causing symptoms exactly where they are, since every removal carries some exposure. Removal is usually considered when a filling is failing or you are choosing to switch materials.
Are composite fillings as strong?
Modern composite resin performs well for most fillings and bonds directly to the tooth. Very large restorations may call for a ceramic inlay or crown instead. Your dentist will match the material to the size and location of the repair.
Is mercury free dentistry covered by insurance?
Coverage varies. Many plans cover composite fillings, though some reimburse only at the lower amalgam rate and leave you to pay the difference. Check your specific plan before treatment.
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Find a Dentist →This article is educational information only and is not medical or dental advice. Always consult a qualified healthcare professional about your own care.
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