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Randomized Controlled Trial
. 2015 Feb;13(1):25-9.
doi: 10.1111/idh.12090. Epub 2014 Jul 21.

Comparison of Effectiveness of Abrasive and Enzymatic Action of Whitening Toothpastes in Removal of Extrinsic Stains - A Clinical Trial

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Randomized Controlled Trial

Comparison of Effectiveness of Abrasive and Enzymatic Action of Whitening Toothpastes in Removal of Extrinsic Stains - A Clinical Trial

P A Patil et al. Int J Dent Hyg. .

Abstract

Objective: To compare the effectiveness of abrasive component (perlite/calcium carbonate) and enzymatic component (papain and bromelain) of whitening toothpaste in removal of extrinsic stains.

Methods: This study is a randomized, triple blind and parallel group study in which 90 subjects aged 18-40 years were included. At baseline, stains scores were assessed by Macpherson's modification of Lobene Stain Index and subjects were randomly assigned to two groups with 45 subjects in each. Group 1 used whitening toothpaste with enzymatic action and group 2 with abrasive action. After 1 month, stain scores were assessed for the effectiveness of the two toothpastes and 2 months later to check the stain prevention efficacy. Wilcoxson's test was used to compare between baseline 1 and 2 months stain scores, and Mann-Witney U-test was applied for intragroup comparison.

Results: The mean baseline total stain score for the subjects allocated to the enzymatic toothpaste was 37.24 ± 2.11 which reduced to 30.77 ± 2.48 in 1 month, and for the abrasive paste, total stain reduced from 35.08 ± 2.96 to 32.89 ± 1.95. The reductions in total stain scores with both the pastes were significant compared with baseline stain scores (at 1 month Group 1, P = 0.0233 and Group 2, P = 0.0324; at 2 months, Group 1 P = 0.0356). Both the toothpastes proved to be equally good in removal of extrinsic stains; however, the enzymatic paste showed better results as compared to abrasive toothpaste.

Conclusion: Whitening toothpaste with abrasive action and enzymatic action are equally effective in removal of extrinsic stains; however, whitening toothpaste with abrasive action needs to be used with caution.

Keywords: Macpherson's Lobene stain index; bromelain; papain; perlite; whitening toothpaste.

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