Extended bleaching of tetracycline-stained teeth: a 5-year study

Oper Dent. 2006 Nov-Dec;31(6):643-51. doi: 10.2341/06-6.

Abstract

Bleaching tetracycline-stained teeth is the most challenging form of tooth lightening. This article reports on 44 subjects who bleached their tetracycline-stained teeth for 6 months using trays with reservoirs overnight in a half-mouth designed study and 2 of 3 different concentrations of carbamide peroxide (10%, 15% or 20%). The subjects were followed for 5 years. The area evaluated was the middle third of the teeth. More than 55% of tooth lightening occurred within 1 month; after 5 years, more than 65% of the maximum tooth whitening remained for all 3 gel concentrations. Tooth whitening can be accomplished with any of the 3 concentrations used.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Analysis of Variance
  • Anti-Bacterial Agents / adverse effects*
  • Carbamide Peroxide
  • Colorimetry
  • Dental Devices, Home Care
  • Dentin Sensitivity / chemically induced
  • Dose-Response Relationship, Drug
  • Drug Combinations
  • Humans
  • Longitudinal Studies
  • Oxidants / administration & dosage
  • Oxidants / adverse effects
  • Patient Satisfaction
  • Peroxides / administration & dosage
  • Peroxides / adverse effects
  • Surveys and Questionnaires
  • Tetracycline / adverse effects*
  • Tooth Bleaching / adverse effects
  • Tooth Bleaching / instrumentation
  • Tooth Bleaching / methods*
  • Tooth Cervix / pathology
  • Tooth Discoloration / chemically induced*
  • Tooth Discoloration / drug therapy*
  • Urea / administration & dosage
  • Urea / adverse effects
  • Urea / analogs & derivatives

Substances

  • Anti-Bacterial Agents
  • Drug Combinations
  • Oxidants
  • Peroxides
  • Carbamide Peroxide
  • Urea
  • Tetracycline