The effect of early water contact on glass-ionomer cements.

@article{Um1992TheEO,
  title={The effect of early water contact on glass-ionomer cements.},
  author={Chung Moon Um and Gudbrand Oilo},
  journal={Quintessence international},
  year={1992},
  volume={23 3},
  pages={209-14}
}
The purpose of this study was to observe the effect of immersion in water at 3, 5, 7, and 10 minutes after mixing on the surface of three regular and one light-curing glass-ionomer cements by measuring penetration of a methylene blue solution. Early solubility of these cements was also measured and compared with that of a zinc phosphate and a polycarboxylate cement. A blue-stained zone was observed in all glass-ionomer cements, but an inner, opaque zone was observed in only two of the regular… CONTINUE READING

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