Quantitative analysis of lead in polysulfide-based impression material
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ABM, ABC, ABPol
FapUNIFESP (SciELO)
FapUNIFESP (SciELO)
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Acesso aberto
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Resumo
Permlastic® is a polysulfide-based impression material widely used by dentists in Brazil. It is composed of a base paste and a catalyzer containing lead dioxide. The high toxicity of lead to humans is ground for much concern, since it can attack various systems and organs. The present study involved a quantitative analysis of the concentration of lead in the material Permlastic®. The lead was determined by plasma-induced optical emission spectrometry (Varian model Vista). The percentages of lead found in the two analyzed lots were 38.1 and 40.8%. The lead concentrations in the material under study were high, but the product’s packaging contained no information about these concentrations.
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Inglês
Citação
Materials Research. São Carlos, SP, Brazil: ABM, ABC, ABPol, v. 10, n. 2, p. 161-163, 2007.
