silver amalgam

silver amalgam

Etymology: AS, seolfor + Gk, malagma

an alloy of silver, tin, copper, mercury, and zinc used in dentistry to fill prepared tooth cavities.

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amalgam (mal´gm),

n (dental amalgam alloy), an alloy, one of the constituents of which is mercury.

amalgam, bonded,

n 1. a composite of tooth-colored acrylic resin and finely ground glass-like particles that is bonded or adhered to the tooth during dental restoration. The advantage is that less of the tooth structure needs to be removed during the restoration, resulting in a smaller filling compared with traditional amalgams.
2. a composite filling.

amalgam carrier,

n See carrier, amalgam.

amalgam carver,

n See carver, amalgam.

amalgam condenser,

n See condenser, amalgam.

amalgam, copper,

n an alloy composed principally of copper and mercury. See also amalgam.

amalgam, dental,

n an amalgam used for dental restorations and dyes.

amalgam matrix,

n See matrix, amalgam.

amalgam pigmentation,

n See amalgam tattoo.

amalgam plugger,

n See condenser, amalgam.

amalgam, silver,

n a dental amalgam, the main constituent of which is silver. The ADA composition specifications are as follows: silver, 65% minimum; tin, 25% minimum; copper, 6% maximum; zinc, 2% maximum.

amalgam squeeze cloth,

n a piece of linen used to hold plastic amalgam from which excess mercury is to be squeezed. Used with hand trituration.

amalgam tattoo,

n a solitary discrete gray, blue, or black discoloration of tissue usually located in the gingiva, alveolar ridge, or buccal mucosa caused by small amounts of dental amalgam that became embedded under the surface. The asymptomatic lesion is static and requires no treatment. If doubt exists about the lesion or if the lesion is unsightly, excisional biopsy is recommended.

Amalgam tattoo.

amalgam well,

n a small, bowl-shaped container that holds mixed amalgam prior to its being loaded into the amalgam carrier.

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silver (Ag),

n a whitish precious metal occurring mainly as a sulfide. Its atomic number is 47, and its atomic weight is 107.88. It is quite soft and is usually alloyed with small amounts of copper to increase its durability. It is used extensively in photography, radiography, and dentistry.

silver amalgam,

n See amalgam, silver.

silver cones,

n an endodontic filling material used in conjunction with gutta-percha points and sealing agents to effect a seal of the pulp chamber and canal. Also known as
master cones.

silver halide crystals,

n See crystal, silver halide.

silver nitrate, ammoniacal

n (ammoniated silver nitrate, Howe's silver nitrate), an ammonium compound of silver nitrate that is more readily reduced to silver and silver proteinates than is the usual silver nitrate; formerly used to disclose carious tooth structure and immunize incipient carious lesions of the enamel. It is highly irritating to the pulp and can permanently stain the oral mucosa.

silver nitrate, Howe's,

n.pr See silver nitrate, ammoniacal.

silver points,

n See silver cones.

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silver

1. a chemical element, atomic number 47, atomic weight 107.870, symbol Ag. See Table 6. It is used in medicine for its caustic, astringent and antiseptic effects. Experimental poisoning with silver salts causes myopathy.

2. a coat color in dogs, foxes.

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silver amalgam

see amalgam.

silver collie syndrome

see canine cyclic hematopoiesis.

silver grass

aristidacontorta.

silver halide

any of the silver salts with halogens including bromine, chlorine, iodine used in photographic emulsion.

silver iodide

soluble silver salt used in cloud seeding but presents no toxicological risk to local grazing cattle.

silver-leaf ironbark

eucalyptusmelanophloia.

silver-leafed nightshade

solanumelaeagnifolium.

silver nitrate

colorless or white crystals, used as a caustic and local anti-infective.

silver nitrate (toughened)

a mixture of silver nitrate with hydrochloric acid, sodium chloride or potassium nitrate, occurring as white crystalline masses molded into pencils or cones, called caustic pencils; a convenient means of applying silver nitrate locally. Called also lunar caustic.

silver protein

silver made colloidal by the presence of, or combination with, protein; an active germicide with a local irritant and astringent effect.

silver stain

a method of demonstrating flagella on bacteria, or for visualizing very thin bacteria, such as leptospires.

silver sulfadiazine

the silver salt of sulfadiazine, having bactericidal activity against many gram-positive and gram-negative organisms, as well as being effective against yeasts; used as a topical anti-infective for the prevention and treatment of wound sepsis in patients with second and third degree burns.

silver weed

see potentilla anserina.