Effects of bleaching gels on the surface microhardness of tooth-colored restorative materials in situ.

@article{Yu2008EffectsOB,
  title={Effects of bleaching gels on the surface microhardness of tooth-colored restorative materials in situ.},
  author={Hao Yong Yu and Qing Li and Manal Hussain and Yi-ning Wang},
  journal={Journal of dentistry},
  year={2008},
  volume={36 4},
  pages={261-7}
}
OBJECTIVES The purpose of this study was to evaluate the effects of a home bleaching gel containing 15% carbamide peroxide on the surface microhardness of four tooth-colored restorative materials in situ. METHODS Four types of tooth-colored restorative materials, including a nanocomposite resin (Filtek Z350), a packable composite resin (Filtek P60), a polyacid-modified composite (Dyract AP), and a glass-ionomer cement (Ketac Molar Easymix), were used in this study. Each material was divided… CONTINUE READING

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Hydrogen peroxide bleaching induces changes in the physical properties of dental restorative materials: Effects of study protocols.

Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] • 2018
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