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In vitro efficacy of sodium perborate preparations used for intracoronal bleaching of discolored non-vital teeth.

Abstract
Bleaching materials containing 30% hydrogen peroxide have been used successfully for the treatment of discolored non-vital teeth. Intracoronal application of these materials was occasionally associated with the development of external root resorption. Extracted human teeth with intact crowns were discolored in vitro and bleached with three preparations of sodium perborate. These preparations included: sodium perborate with 30% hydrogen peroxide, sodium perborate with 3% hydrogen peroxide and sodium perborate with water. The bleaching materials were placed in the pulp chamber of the discolored teeth and sealed with IRM for 14 days. They were replaced with fresh preparations after 3 and 7 days. The coronal tooth shades were evaluated after 3, 7 and 14 days and a comparison of the bleaching success of the groups was made at each interval. It was found that after 14 days and three bleachings there was no significant difference in success between the groups. It is therefore recommended that sodium perborate be used in combination with water rather than with hydrogen peroxide to reduce the risk of post-bleaching external root resorption.
AuthorsI Rotstein, M Zalkind, C Mor, A Tarabeah, S Friedman
JournalEndodontics & dental traumatology (Endod Dent Traumatol) Vol. 7 Issue 4 Pg. 177-80 (Aug 1991) ISSN: 0109-2502 [Print] Denmark
PMID1915131 (Publication Type: Comparative Study, Journal Article)
Chemical References
  • Borates
  • Hydrogen Peroxide
  • sodium perborate
Topics
  • Borates (therapeutic use)
  • Dental Pulp Devitalization
  • Humans
  • Hydrogen Peroxide
  • Tooth Bleaching
  • Tooth Discoloration (therapy)

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