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

• Noh YS
• Rho YJ
• Yoo YJ
• Lee HO
• Lim SM
• Kweon HJ
• Kim Y
• Park SY
• Yoon HY
• Lee JH
• Lee CH
• Oh SR
• Kum KY

• KMID: 1986693
• DOI: http://doi.org/10.5395/JKACD.2011.36.4.306

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

MeSH Terms

Humans
Hydrogen
Hydrogen Peroxide
Hypersensitivity
Incidence
Light
Mass Screening
Recurrence
Tooth
Tooth Bleaching
Hydrogen
Hydrogen Peroxide

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