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

Young-Suk Noh; Young-Jee Rho; Yeon-Jee Yoo; Hyang-Ok Lee; Sang-Min Lim; Hyun-Jeong Kweon; Yeun Kim; Seong-Yeon Park; Hee-Young Yoon; Jung-Hyun Lee; Chan-Hee Lee; So-Ram Oh; Kee-Yeon Kum

doi:10.5395/JKACD.2011.36.4.306

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Noh, Rho, Yoo, Lee, Lim, Kweon, Kim, Park, Yoon, Lee, Lee, Oh, and Kum: Clinical assessment of whitening efficacy and safety of in-office tooth whitening system containing 15% hydrogen peroxide with or without light activation

Basic Research

Journal of Korean Academy of Conservative Dentistry

Journal of Korean Academy of Conservative Dentistry 2011; 36(4): 306-312.

Published online: 31 July 2011

DOI: https://doi.org/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

Young-Suk Noh, DDS, MS, Young-Jee Rho, DDS, MS, Yeon-Jee Yoo, DDS, MS, Hyang-Ok Lee, DDS, MS, Sang-Min Lim, DDS, MS, Hyun-Jeong Kweon, DDS, Yeun Kim, DDS, Seong-Yeon Park, DDS, Hee-Young Yoon, DDS, Jung-Hyun Lee, DDS, Chan-Hee Lee, DDS, So-Ram Oh, DDS, MS, Kee-Yeon Kum, DDS, PhD

Graduate student

Associate Professor

Department of Conservative Dentistry, Seoul National University School of Dentistry and Dental Research Institute, Seoul, Korea.

Correspondence to Kee-Yeon Kum, DDS, PhD. Associate Professor, Department of Conservative Dentistry, Seoul National University School of Dentistry, Dental Research Institute and BK21 Program, 28-2 Yeongun-dong, Jongro-gu, Seoul, Korea 110-749. TEL, +82-2-2072-2656; FAX, +82-2-2072-3459; kum6139@snu.ac.kr

Received 3 May 2011 Revised 21 June 2011 Accepted 21 June 2011

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.

Keywords: Hypersensitivity, In-office bleaching, Light activation, Shadepilot, Zoom2 white gel, 15% hydrogen peroxide

Figures and Tables

Table 1

Tab arrangement and numeric order for Vitapan Classical ('Value'scale)

Table 2

Shade change evaluated by Vitapan Classical shade guide and Shadepilot

SD, standard deviation; VC, shade change evaluated by Vitapan Classical shade guide.

Table 3

Survey results on tooth sensitivity

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