Surface hardness change of restorative filling materials stored in saliva.

@article{Okada2001SurfaceHC,
  title={Surface hardness change of restorative filling materials stored in saliva.},
  author={Kazuhiro Okada and Shinya Tosaki and Koichi Hirota and Wyatt R. Hume},
  journal={Dental materials : official publication of the Academy of Dental Materials},
  year={2001},
  volume={17 1},
  pages={34-9}
}
OBJECTIVES This study was to investigate the effect of saliva used as storage liquid and the length of storage effect on surface hardnesses of Fuji IX (GP) (FIX), Dyract (DR), Z-100 and Estio LC (ELC). METHODS The materials were mixed according to the manufacturers' instructions and immersed in distilled water or human parotid saliva. Vickers hardness number (HVN) was measured 1, 7, 20 and 40 days after the materials were mixed. HVN was calculated from the indentation diameter after 100 or… CONTINUE READING

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