amalgam

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Related to Amalgams: dental amalgam alloy

amalgam

(əmăl`gəm), alloyalloy
[O. Fr.,=combine], substance with metallic properties that consists of a metal fused with one or more metals or nonmetals. Alloys may be a homogeneous solid solution, a heterogeneous mixture of tiny crystals, a true chemical compound, or a mixture of these.
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 containing mercurymercury
or quicksilver
[from the Roman god Mercury], metallic chemical element; symbol Hg [Lat. hydrargyrum=liquid silver]; at. no. 80; at. wt. 200.59; m.p. −38.842°C;; b.p. 356.58°C;; sp. gr. 13.55 at 20°C;; valence +1 or +2.
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. The alloy may be liquid or solid, depending on the proportion of mercury, although all naturally occurring amalgams, i.e., those of gold and silver, are solid. Amalgams are widely used. Silver, gold, and copper amalgams are used in dentistry, and tin amalgam is used in making mirrors.

amalgam

[ə′mal·gəm]
(metallurgy)
An alloy of mercury.
(mineralogy)
A silver mercury alloy occurring in nature.

amalgam

1. an alloy of mercury with another metal, esp with silver
2. a rare white metallic mineral that consists of silver and mercury and occurs in deposits of silver and cinnabar
References in periodicals archive ?
5% participants considered the use of amalgam as safe during pregnancy, 36.
The result of all the amalgams within the allowable limit set by the ADA and the dimensional change of amalgam stabilized with increasing (Zr[O.
Although they have not totally banned mercury amalgams, Germany and Canada forbid their use in pregnant women and children--a path that US Food and Drug Administration (FDA) was prepared to follow in January 2012.
On July 28, 2009, FDA issued its final rule on encapsulated dental amalgam and reaffirmed the agency's position that the material is a safe and effective restorative option for patients.
Ten-year clinical assessment of three posterior resin composites and two amalgams.
Cumulative and incident failure of restorations at 12 and 24 months was calculated for dentists who placed ART or amalgam restorations, while the same was generated for auxiliaries who placed ART restorations only at 12 months as no follow-up was possible after 2 years in this group.
Mercury reactions in the human mouth with dental amalgams.
Maternal amalgam dental fillings as the source of mercury exposure in developing fetus and newborn.
Food and Drug Administration's position on dental amalgam, which is made of elemental mercury combined with a powder alloy made of silver, tin, and copper, is that the level of mercury released by amalgam is not high enough to cause harm to patients.
NaturalNews) Effective January 1st of this year, Norway has become the first nation to legislate a sweeping ban on the use of amalgam fillings in dental work.
She believes the treatment caused themercuryin her fillings (the silver coloured amalgam mix) to leach into her body.
Mercury also can leak from amalgams directly into gum tissues, causing periodontal (gum) disease.