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Abrasion of eroded dentin caused by toothpaste slurries of different abrasivity and toothbrushes of different filament diameter


Wiegand, Annette; Kuhn, Mirjam; Sener, Beatrice; Roos, Malgorzata; Attin, Thomas (2009). Abrasion of eroded dentin caused by toothpaste slurries of different abrasivity and toothbrushes of different filament diameter. Journal of Dentistry, 37(6):480-484.

Abstract

OBJECTIVE: This study aimed to evaluate the impact of toothpaste slurry abrasivity and toothbrush filament diameter on abrasion of eroded dentin in vitro. METHODS: Eroded dentin samples (hydrochloric acid, pH 2.6, 15s) were brushed with 40 strokes in an automatic brushing machine using manual toothbrushes with different filament diameter (0.15, 0.20 or 0.25 mm). The toothbrushes were applied with a control slurry free of abrasive particles (RDA-value 10) or toothpastes slurries with different abrasivity (RDA-values 20, 50 or 100). Each erosive-abrasive cycle was followed by storage of the dentin samples in artificial saliva for 3h. After each 4 cycles, the samples were stored in artificial saliva for 15 h. After 60 cycles, dentin loss was measured by profilometry and statistically analysed by ANOVA and linear regression analysis. RESULTS: Dentin loss increased along with the RDA-value of the toothpaste slurries. The impact of the filament diameter on dentin loss was less evident compared to the RDA-value. However, toothbrushes with smaller filament stiffness caused higher dentin wear in all toothpaste slurry groups (RDA 20, 50 and 100) except for the paste-free control group (RDA 10). CONCLUSION: Abrasion of eroded dentin increased along with the RDA-value of the toothpaste slurry and with decreasing filament diameter of the toothbrush.

OBJECTIVE: This study aimed to evaluate the impact of toothpaste slurry abrasivity and toothbrush filament diameter on abrasion of eroded dentin in vitro. METHODS: Eroded dentin samples (hydrochloric acid, pH 2.6, 15s) were brushed with 40 strokes in an automatic brushing machine using manual toothbrushes with different filament diameter (0.15, 0.20 or 0.25 mm). The toothbrushes were applied with a control slurry free of abrasive particles (RDA-value 10) or toothpastes slurries with different abrasivity (RDA-values 20, 50 or 100). Each erosive-abrasive cycle was followed by storage of the dentin samples in artificial saliva for 3h. After each 4 cycles, the samples were stored in artificial saliva for 15 h. After 60 cycles, dentin loss was measured by profilometry and statistically analysed by ANOVA and linear regression analysis. RESULTS: Dentin loss increased along with the RDA-value of the toothpaste slurries. The impact of the filament diameter on dentin loss was less evident compared to the RDA-value. However, toothbrushes with smaller filament stiffness caused higher dentin wear in all toothpaste slurry groups (RDA 20, 50 and 100) except for the paste-free control group (RDA 10). CONCLUSION: Abrasion of eroded dentin increased along with the RDA-value of the toothpaste slurry and with decreasing filament diameter of the toothbrush.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Epidemiology, Biostatistics and Prevention Institute (EBPI)
04 Faculty of Medicine > Center for Dental Medicine > Clinic for Preventive Dentistry, Periodontology and Cariology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2009
Deposited On:22 Jun 2009 16:08
Last Modified:05 Apr 2016 13:16
Publisher:Elsevier
ISSN:0300-5712
Publisher DOI:https://doi.org/10.1016/j.jdent.2009.03.005
PubMed ID:19346053
Permanent URL: https://doi.org/10.5167/uzh-19374

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