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Leaching from glass ionomer cements
Author(s) -
BAPNA M.S.,
MUELLER H.J.
Publication year - 1994
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1994.tb01172.x
Subject(s) - glass ionomer cement , cement , leaching (pedology) , zinc phosphate , zinc , nuclear chemistry , dental cement , phosphate , chemistry , materials science , metallurgy , composite material , adhesive , organic chemistry , soil water , geology , layer (electronics) , soil science
Summary This study compared the electrical conductivities, pH and leached ion (F − , Ca, Al, Si) concentrations in supernatant liquids obtained from four glassionomer cements, a buffered ionomer cement, a polycarboxylate cement and a zinc phosphate cement, at three different levels of settings. The result indicated that the measured parameters are highest for the unset condition of cements and decreases as the set condition is approached, except for pH, which shows the opposite trend. Two pulp sensitive glassionomer cements, Chem Bond and Ketac Cem showed high Ca : F ratios as well as high Ca and F concentrations. Further, it is suggested that the cytotoxicity of leached F − , Si, Al and Zn at high concentration and at low pH may induce sensitivity in tooth structure.