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polyacid
polyacid, a. and n. Chem. (pɒlɪˈæsɪd) Also poly-acid. [f. poly- + acid.] † A. adj. Applied to a base which requires more than one equivalent of acid for neutralization, and to a salt of such a base; of an alcohol, polyhydric. Obs.1858 Proc. R. Soc. IX. 152 It became extremely probable that the actio...
Oxford English Dictionary
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Polyelectrolyte
Polyacid
In polymer terminology, a polyacid is a polyelectrolyte composed of macromolecules containing acid groups on a substantial fraction of the constitutional
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polybase
polybase Chem. (ˈpɒlɪbeɪs) [f. poly- 2 + base n.1] A compound which contains more than one basic group. Cf. polybasic a.1920 [see polyacid n.]. 1956 Nature 24 Mar. 586/1 This polybase, {b1}[{b1}CH2{b1}CH2{b1}NH2{b1}]n{b1}, has the advantage of being stained by naphthalene black 12B as well as by sud...
Oxford English Dictionary
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Polylactic acid
The name "polylactic acid" is potentially ambiguous or confusing, because PLA is not a polyacid (polyelectrolyte), but rather a polyester.
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Trichrome staining
Trichrome staining is a histological staining method that uses two or more acid dyes in conjunction with a polyacid. In "one-step" methods, all the dyes—with or without a polyacid—are combined in a single solution.
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poly-
poly- (pɒlɪ) repr. Gr. πολυ-, combining form of πολύς, πολύ, much, in pl., πολλοί, -αί, ά many, forming the first element in a large number of words, mostly scientific or technical. The second element of such compounds is properly of Greek origin, but in recent formations is often of Latin; occasion...
Oxford English Dictionary
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Enamel hypoplasia
In decayed teeth with enamel defects, only bonded restorations (e.g. glass ionomer, polyacid-modified composite resin and not amalgam) should be placed
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Dental compomer
Dental compomers, also known as polyacid-modified resin composite, are used in dentistry as a filling material. The setting reaction is similarly a polymerisation process of resin monomers (e.g. urethane dimethacrylate) which have been modified by polyacid groups
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Dental sealant
made up of bis-GMA
Polymerised by light
These sealants can be colourless, tinted or white
Glass-ionomer (GI)
Has fluoride releasing properties
Polyacid-modified
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Dental material
The reaction consists of an acid base reaction with zinc oxide reacting with the acid groups in polyacid.
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