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  • Title: Microleakage of crowns cemented with glass ionomer cement: effects of preparation finish and conditioning with polyacrylic acid.
    Author: Tjan AH, Peach KD, VanDenburgh SL, Zbaraschuk ER.
    Journal: J Prosthet Dent; 1991 Nov; 66(5):602-6. PubMed ID: 1804996.
    Abstract:
    This study compared the marginal leakage of cast gold complete crowns cemented with glass ionomer and with zinc phosphate cement. The effect of polishing the preparations and conditioning with polyacrylic acid was also evaluated for glass ionomer cement. The cast gold crowns cemented with glass ionomer cement demonstrated significantly lower marginal leakage than did those with zinc phosphate cement. The extent of microleakage was not substantially different between crowns when the preparations were polished and conditioned with polyacrylic acid.
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