Extraradicular diffusion of hydrogen peroxide and pH changes associated with intracoronal bleaching of discoloured teeth using different bleaching agents.

@article{Lee2004ExtraradicularDO,
  title={Extraradicular diffusion of hydrogen peroxide and pH changes associated with intracoronal bleaching of discoloured teeth using different bleaching agents.},
  author={G P Lee and Meng Yit Lee and Stephanie Y. Lum and R S C Poh and K. Lim},
  journal={International endodontic journal},
  year={2004},
  volume={37 7},
  pages={500-6}
}
AIM To evaluate the extraradicular pH and hydrogen peroxide (HP) diffusion when either 35% carbamide peroxide (CP), 35% HP or sodium perborate (SP) is used for intracoronal bleaching of artificially discoloured teeth. METHODOLOGY Single rooted extracted human premolars were stained with whole blood cells. After shaping and cleaning, they were root filled… CONTINUE READING