FAQ Category: Amalgam Fillings

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  • FAQ Category: Amalgam Fillings
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When is it appropriate to use composite fillings?

Composite fillings are typically made of a resin and glass mixture, tinted to the color of your tooth, and commonly referred to as “white” or “tooth-colored” fillings. They serve an important purpose for teeth that are visible when smiling, providing an aesthetic benefit not afforded by silver fillings. While resin composite fillings undoubtedly look better than amalgam ones, they are generally considered to be less durable, and therefore may not be ideal for teeth that are subject to extreme chewing and biting forces. It is worth noting, however, that composite materials continue to benefit from technological advancements, contributing to enhanced durability. The ADA supports composite materials in small or mid-size fillings on teeth that are exposed to moderate pressure from chewing, and acknowledges that they are a good choice for a more natural-looking filling.

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What is the ADA’s position regarding the use of silver amalgam fillings?

A thorough summary of evidence ranging from 2004-2010 led the ADA to reaffirm its position that amalgam is a valuable and safe choice for patients.

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Why is amalgam still used to fill teeth when composite materials are available?

While composite (or “tooth colored”) fillings are more durable than ever thanks to advancements in technology, there are still many cases where amalgam fillings perform better (and longer). This is often the case with teeth that are naturally subjected to extensive chewing force, such as molars. Mercury is an important part of the amalgam mixture as it contains unique elements that allow it to be manipulated with ease during placement and then harden quickly after. In addition to the benefits of longevity, amalgam fillings are also more affordable than composites.

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Sarah Taylor

Obstetrics & Gynaecology

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