Review of the current status of tooth whitening with the walking bleach technique.

  title={Review of the current status of tooth whitening with the walking bleach technique.},
  author={Thomas Attin and Frank Paqu{\'e} and Fateme Ajam and Aine M Lennon},
  journal={International endodontic journal},
  volume={36 5},
Internal bleaching procedures such as the walking bleach technique can be used for whitening of discoloured root-filled teeth. The walking bleach technique is performed by application of a paste consisting of sodium perborate-(tetrahydrate) and distilled water (3% H2O2), respectively, in the pulp chamber. Following a critical review of the scientific literature, heating of the mixture is contra-indicated as the risk of external cervical resorption and the formation of chemical radicals is… 

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Effect of intracoronal bleaching on external cervical root resorption.

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