Effect of reduced exposure times on the microhardness of nanocomposites polymerized by QTH and second-generation LED curing lights.

@article{Marchan2011EffectOR,
  title={Effect of reduced exposure times on the microhardness of nanocomposites polymerized by QTH and second-generation LED curing lights.},
  author={Shivaughn M. Marchan and David R. White and William A. J. Smith and Vedarajan Raman and Larry Coldero and Virendra B Dhuru},
  journal={Operative dentistry},
  year={2011},
  volume={36 1},
  pages={98-103}
}
This study investigated the effectiveness of polymerization of various curing regimes on five nanocomposite restorative materials—Z350, Grandio, Clearfil Majesty Esthetic, Ice and Tetric EvoCeram—by utilizing microhardness measurements. Five (n=5) disc-shaped specimens of each material were subjected to one of three curing regimes: curing with a halogen light for 20 seconds, curing with an LED light for 20 seconds and curing with an LED light for 10 seconds. Immediately following curing… CONTINUE READING

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