silicate cement

silicate cement

[sil′i·kāt]

Etymology: L, silex, flint + caementum, rough stone

a dental cement that is translucent and porcelainlike when set; formerly used for esthetic temporary and semipermanent restorations of anterior teeth.

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cement,

n a material that produces a mechanical interlocking effect on hardening.

cement, acrylic resin dental,

n a dental cement, dispensed as a powder and a liquid, that is mixed as is any other cement. The powder contains polymethyl methacrylate, a filler, plasticizer, and polymerization initiator. The liquid monomer is methyl methacrylate with an inhibitor and an activator.

cement, copper dental,

n a zinc phosphate cement to the powder of which has been added a copper oxide.

cement, dental,

n the materials used in dentistry as luting agents, bases, and temporary restorations. See also cement, acrylic resin dental; cement, zinc.

cement, dental base,

n an insulating layer of cement placed in the deeper portion of a prepared cavity to insulate the pulp.

cement dressing,

n a postoperative dressing applied after periodontal surgery.

cement dressing, dental, Kirkland,

n.pr See dressing, Kirkland cement.

cement, Kryptex dental,

n.pr See cement, silicophosphate.

cement line,

n See line, cement.

cement, polycarboxylate,

n a dental cement used for cementation of cast restorations and orthodontic appliances and as bases. Prepared by mixing a zinc oxide powder with a liquid of polycarboxylic acid.

cement, resin,

n See resin cement.

cement sealer,

n a compound used in filling a root canal; it is inserted in a plastic condition, solidifies after placement, and fills any irregularities in the surface of the canal.

cement, silicate,

n a relatively hard, translucent restorative material used primarily in anterior teeth. Prepared by mixing a liquid and a powder. The powder is an acid-soluble glass prepared by the fusion of CaO, SiO, Al₂O₃, and other ingredients with a fluoride flux. The liquid is a buffered phosphoric acid solution.

cement, silicious dental,

n See cement, silicate.

cement, silicophosphate

n (Kryptex cement), a combination zinc phosphate and silicate cement. Less translucent, less irritating, and less soluble than silicate and stronger than zinc phosphate cement.

cement, zinc oxide-eugenol dental

n the least irritating of the cements. The powder is essentially zinc oxide with strengtheners and accelerators. The liquid is basically eugenol.

cement, zinc phosphate,

n a material used for cementation of inlays, crowns, bridges, and orthodontic appliances; occasionally used as a temporary restoration. Prepared by mixing a powder and a liquid. The powders are composed primarily of zinc oxide and magnesium oxides. The principal constituents of the liquid are phosphoric acid, water, and buffer agents.