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Related Experiment Videos

Light augments tooth whitening with peroxide.

Mary Tavares1, Jacyn Stultz, Margaret Newman

  • 1The Forsyth Institute, Boston, Mass 02115, USA.

Journal of the American Dental Association (1939)
|March 15, 2003
PubMed
Summary

Adding light to peroxide gel significantly enhances in-office tooth whitening results. This combined treatment offers superior shade improvement with minimal, temporary tooth sensitivity for effective dental procedures.

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Area of Science:

  • Dentistry
  • Cosmetic Dentistry
  • Dental Materials

Background:

  • Investigated the efficacy of a single-visit, in-office tooth whitening system using a 15 percent peroxide gel combined with light.
  • Assessed the adjunctive use of light to peroxide gel for dental esthetics.

Purpose of the Study:

  • To evaluate the effectiveness of combining light with peroxide gel for tooth whitening.
  • To compare the whitening efficacy of light and peroxide versus peroxide alone and light alone.

Main Methods:

  • 87 subjects with stained anterior teeth were randomized into three groups: peroxide and light, peroxide only, or light only.
  • Treatment duration was one hour, with evaluations of tooth shade, color, and subject response at baseline, post-treatment, and at three and six months.

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Main Results:

  • The combined light and peroxide treatment yielded the greatest shade reduction (8.4 units) compared to peroxide alone (5.9) or light alone (4.9).
  • Approximately 88% of the whitening effect persisted for six months, with significant increases in lightness and decreases in yellowness.
  • Tooth sensitivity was transient, occurring in 20% of the test group one week post-treatment, with no sensitivity or gingival redness at three or six months.

Conclusions:

  • Peroxide and light significantly enhance tooth color lightening more than either agent alone.
  • The combination of light with peroxide gel increases the overall effectiveness of tooth whitening procedures.
  • The adjunctive use of light with peroxide gel offers a safe and effective in-office tooth whitening solution with transient side effects.