Abrasiveness of conventional and specific denture-cleansing dentifrices

Brazilian Dental Journal

Danilo Balero Sorgini¹  Claudia Helena Da Silva-lovato¹  Raphael Freitas De Souza¹  Letícia Resende Davi¹  Helena De Freitas Oliveira Paranhos¹ 

[1] ,University of São Paulo Ribeirão Preto Dental School Department of Dental Materials and Prosthodontics

关键词: abrasiveness;    toothbrushing;    surface roughness;    mass loss;   

DOI  :  10.1590/S0103-64402012000200011

来源: SciELO

【 摘 要 】

This study analyzed the weight loss and surface roughness caused in Plexiglass specimens by conventional dentifrices (Sorriso, Colgate and Close Up) and specific dentifrices used for cleaning of dentures (Corega and Dentu Creme). Plexiglass specimens were divided into 6 groups (n=6) including: a control (distilled water - DW) and experimental groups. Brushing was performed in a toothbrushing machine with a soft brush and a dentifrice suspension and DW according to different brushing times (50, 100, 200 and 250 min -18,000, 36,000, 72,000 and 90,000 cycles, respectively, calculated to correspond to 1, 2, 4 and 5 years of regular brushing). The results of weight loss and surface roughness were analyzed by ANOVA and Tukey’s test at 5% significance level. In all tested times, the effect of DW was insignificant. Dentifrices differed significantly from DW in the initial period. Corega dentifrice caused greater mass loss in all studied times, followed by Close Up. Dentifrices resulted in a surface roughness similar to the DW at 50 min. In the other times, Sorriso, Colgate and Corega caused more surface roughness than DW. In conclusion, specific dentifrices caused larger mass loss and lower surface roughness as conventional dentifrice.

【 授权许可】

CC BY   
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