amalgam


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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 ?
Discoloration - amalgam fillings can create a grayish hue to the surrounding tooth structure.
Subjects who answered "yes" (indicating presence of RLS) to the 4 consecutive questions had a significantly higher number of amalgam dental fillings (2.3 vs.
Amalgam surfaces treated with laser produced higher shear bond strength compared to sandblasting technique.8 Use of different intermediate resins and adhesive does not increase the mean shear bond strength of orthodontic brackets as compared to etched enamel even with different surface treatments.
Dr Hame shared that she no longer uses mercury amalgams with children.
This data mining included looking at restorative materials (amalgam vs composite) being placed, replaced, and treatment planned within the past 2 years; the age, gender, and caries risk of the patient; restoration location; and the size (number of surfaces) of the restorations.
The collection directly reflects the Amalgam Collection's long-term licensing agreement with Ferrari in addition to nearly every luxury sports car manufacturer including; Bugatti, McLaren, Aston Martin, Lamborghini and more.
All safety procedures related to the storage of Hg and amalgam waste should be rigorously followed in dentistry since some studies have shown that no solution completely prevents the release of the mercury vapor to the environment (Moreira & Jesus, 2013).
26 May 2016 - US-based online sports information provider Motorsport Network has acquired UK-based handmade large-scale model maker Amalgam Holdings Ltd, the company said.
The RAMVAC brand of vacuums and compressors are manufactured by DentalEZ[R], while Solmetex is the premier manufacturer of the Hg5 line of amalgam separators.
found that symptoms associated with amalgam toxicity match those that characterize chronic fatigue syndrome (CFS) and fibromyalgia (FM) including abnormal fatigue after physical exertion, muscular discomfort and pain, impaired memory and concentration, impaired sleep, depression, and GI problems.
It covers nomenclature and classification of lesions and cavities, general principles of cavity preparation, instruments and materials, isolation of the operatory field, adhesion to dental tissues, composite resin, polymerization of composites, light, color, and characterization of restorations, dental amalgam, direct composite restorations, direct restorations using amalgam, and indirect restorations like root posts, veneers, and crowns.