J Korean Acad Conserv Dent.  2011 Jul;36(4):306-312. 10.5395/JKACD.2011.36.4.306.

Clinical assessment of whitening efficacy and safety of in-office tooth whitening system containing 15% hydrogen peroxide with or without light activation

Affiliations
  • 1Department of Conservative Dentistry, Seoul National University School of Dentistry and Dental Research Institute, Seoul, Korea. kum6139@snu.ac.kr

Abstract


OBJECTIVES
This clinical study evaluated the effect of light activation on the whitening efficacy and safety of in-office bleaching system containing 15% hydrogen peroxide gel.
MATERIALS AND METHODS
Thirty-three volunteers were randomly treated with (n = 17, experimental group) or without light activation (n = 16, control group), using Zoom2 white gel (15% H2O2, Discus Dental) for a total treatment time of 45 min. Visual and instrumental color measurements were obtained using Vitapan Classical shade guide and Shadepilot (DeguDent) at screening test, after bleaching, and 1 month and 3 month after bleaching. Data were analyzed using t-test, repeated measure ANOVA, and chi-squared test.
RESULTS
Zoom2 white gel produced significant shade changes in both experimental and control group when pre-treatment shade was compared with that after bleaching. However, shade difference between two groups was not statistically significant (p > 0.05). Tooth shade relapse was not detected at 3 months after bleaching. The incidence of transient tooth sensitivity was 39.4%, with being no differences between two groups.
CONCLUSIONS
The application of light activation with Zoom2 white gel system neither achieved additional whitening effects nor showed more detrimental influences.

Keyword

Hypersensitivity; In-office bleaching; Light activation; Shadepilot; Zoom2 white gel; 15% hydrogen peroxide
Full Text Links
  • JKACD
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2021 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr