Toothbleaching with over the Counter Mouthwashes Containing Hydrogen Peroxide

2018 • Volume 12 • Issue 2

Rosa Josefina Roncal Espinoza & Lidia Yileng Tay Chu Jon



The objective of this in vitro study was to evaluate the efficacy in dental toothbleaching of three mouthwashes containing hydrogen peroxide in different periods of immersion compared to 10 % carbamide peroxide. Forty samples of human premolars were randomly divided into four groups according to the agent to which they were exposed: G1: Colgate Plax®Whitening, G2: Listerine®Whitening Extreme and G3: Oral B® 3D White ™ were immersed two minutes a day during 28 days and G4: 10 % carbamide peroxide, eight hours a day for 14 days. The color measurement was performed with a Vita Easyshade spectrophotometer using the CIELab scale initially, at 14, 28 and 35 days of evaluation. The comparisons between the groups were made using the Kruskal-Wallis and U Mann-Whitney tests. While between the times the tests Friedman and Sign-Range of Wilcoxon. The results revealed that at 14 days, the four groups showed color changes, but no greater effectiveness was shown of one over the other (p>0,05). However, at 28 and 35 days a clear efficacy of carbamide peroxide was observed on the rinses (p<0,05). Mouthwashes clear the teeth after 28 days, with the indicated protocols; however, they do not reach similar results to a professional clarification with 10 % carbamide peroxide gel.

KEY WORDS: toothbleaching, tooth-bleaching agent, hydrogen peroxide, mouthwashes, spectrophotometry.


How to cite this article

RONCAL, R. J. & TAY, L. Y. Toothbleaching with free-sale mouthwashes containing hydrogen peroxide. Int. J. Odontostomat., 12(2):121-124, 2018.


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