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Effect of intracoronal bleaching on external cervical root resorption.

AbstractThe purpose of this study was to examine histologically and radiographically the effect of a bleaching agent, a mixture of sodium perborate and superoxol (30% hydrogen peroxide), without a heat source on the cervical root surface and periodontal tissue of endodontically treated teeth of dogs. Endodontic treatment was performed on anterior teeth of dogs. The endodontically treated teeth were then divided into two groups. One group received walking bleach procedures, while the other group did not. The animals were killed at intervals of 1 and 3 months after bleaching for histological and radiographic examination. External cervical root resorption was only observed in bleached teeth at 3-month but not at 1-month observation.
AuthorsD Heller, J Skriber, L M Lin (Affiliation: University of Medicine and Dentistry of New Jersey, New Jersey Dental School, Newark.)
JournalJournal of endodontics (J Endod) Vol. 18 Issue 4 Pg. 145-8 (Apr 1992) ISSN: 0099-2399 UNITED STATES
PMID1402566 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Borates
  • sodium perborate
  • Hydrogen Peroxide
Topics
  • Animals
  • Borates (toxicity)
  • Dogs
  • Hydrogen Peroxide (toxicity)
  • Root Resorption (chemically induced)
  • Tooth Bleaching (adverse effects)