Analysis of luting cement powders and liquids.

Analyses were performed on the chemical composition of zinc phosphate, polycarboxylate , and glass ionomer cement. The results showed that powders of zinc phosphate and polycarboxylate cements contained mainly alumino-silicate glass, AlPO4 and CaF2. The main component of the liquid of zinc phosphate cement was approximately 56% aqueous solution of orthophosphoric acid with a small amount of aluminum and zinc. On the other hand, liquids of both polycarboxylate and glass ionomer cements were composed of approximately 42.1-59.3% aqueous solution of poly-carbolic acid.

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