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Benefits of Mercury Free Fillings

Posted by Well Being Dentistry 2023-02-03

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As the name indicates, mercury free fillings do not have mercury or any other traces of metal. They are made from highly customizable and biocompatible composite resin. The material blends in well with the rest of the teeth and provides better protection against oral bacteria. This article talks about the benefits of mercury free fillings.

The benefits of mercury free fillings

Although the ADA has determined that the percentage of mercury in amalgam fillings is safe, dentists are still turning to a more durable substitute called mercury-free fillings (or tooth-colored fillings). The benefits of choosing mercury free fillings include the following.

Aesthetic appeal

Created from metals, the amalgam filling is conspicuous on naturally white teeth. The fillings will stand out when the person speaks or laughs. Tooth-colored fillings are customized to match the shade of the patient’s natural tooth shade, to make the tooth restoration blend in for a smile that is aesthetically appealing.


Mercury-free fillings are fixed to the tooth structure with adhesive to protect it against further decay and strengthen the tooth. The bond can make the composite filling last between seven to 10 years, which is almost how long amalgam fillings last. Also, dental amalgams do not create the same bond; they only serve as a mechanical barrier against decay. Therefore, over time, the treated tooth may weaken, turning into a liability for long-term oral health.

Better protection

Composite fillings provide better and lasting protection against bacterial invasion. After the bonding procedure, the filling will not deform or wear down, irrespective of the powerful forces generated by biting and chewing. Bacteria and food particles cannot penetrate the tooth. However, silver amalgam placed on biting or chewing surfaces can deform from the forces of eating. Small cracks in the filling or between the material and the tooth structure will create a path for bacterial reinvasion, which may turn into a worse decay issue.

Conservative procedure

Conservation in dentistry is based on the concept of saving as much of the natural tooth structure as possible. Amalgam fillings need more removal of the natural tooth structure than composite resin fillings. This means that amalgam is not the ideal choice for patients seeking a conservative way to fill tooth cavities.

A point to consider

Dental amalgams have been used for several decades as tooth fillings, but times have changed and more options are available. Nowadays, patients can choose from materials like resin, porcelain and metals. It is important for patients to stay up to date with the available options. Those who have amalgam fillings can have them changed to tooth-colored, mercury-free fillings. However, it is advisable to consult an experienced and certified dentist for the procedure.

The holistic and natural dentist’s choice of using mercury free fillings shows a commitment to conservative dentistry and the connection between the mouth and the body. To learn more about the benefits, book an appointment with the dentist.

Request an appointment here: or call Well Being Dentistry at (408) 244-0590 for an appointment in our Santa Clara office.

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