We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
Oral Health and Preventive Dentistry



Forgotten password?


Oral Health Prev Dent 14 (2016), No. 6     12. Dec. 2016
Oral Health Prev Dent 14 (2016), No. 6  (12.12.2016)

Page 547-553, doi:10.3290/j.ohpd.a36465, PubMed:27351730

Effect of Whitening Toothpastes on Dentin Abrasion: An In Vitro Study
Vieira, Gustavo Henrique Apolinario / Nogueira, Marcia Bessa / Gaio, Eduardo Jose / Rosing, Cassiano Kuchenbecker / Santiago, Sergio Lima / Rego, Rodrigo Otavio
Purpose: To compare the effect of toothbrushing abrasion with hydrated silica-based whitening and regular toothpastes on root dentin using contact profilometry.
Materials and Methods: Ninety dentin specimens (4 x 4 x 2 mm) were randomly divided into five experimental groups (n = 18) according to the toothpaste: three whitening (W1, W2 and W3) and two regular toothpastes (R1 and R2) produced by two different manufacturers. Using a brushing machine, each specimen was brushed with a constant load of 300 g for 2500 cycles (4.5 cycles/s). The toothpastes were diluted at a ratio of 1:3 w/w (dentifrice:distilled water). The brush diamond tip of the profilometer moved at a constant speed of 0.05 mm/s with a force of 0.7 mN.
Results: The average value of brushing abrasion in μm (mean ± SD) was obtained from five consecutive measurements of each specimen: W1 = 8.86 ± 1.58, W2 = 7.59 ± 1.04, W3 = 8.27 ± 2.39, R1 = 2.89 ± 1.05 and R2= 2.94 ± 1.29. There was a significant difference between groups (ANOVA, p<0.0001). Post-hoc Tukey's test for multiple comparisons showed differences between all the whitening and regular toothpastes, but not among the whitening nor among the regular toothpastes.
Conclusion: The whitening toothpastes tested can cause more dentin abrasion than the regular ones.

Keywords: bleaching agents, dentifrice, tooth abrasion, toothbrushing