Produção Nacional
Revisado por pares
Effect of green tea as a protective measure against dental erosion in coronary dentine
2016; Brazilian Society of Dental Research; Volume: 30; Issue: 1 Linguagem: Inglês
10.1590/1807-3107bor-2016.vol30.0013
ISSN1807-3107
AutoresMaria Denise Rodrigues de Moraes, J R M Carneiro, Vanara Florêncio Passos, Sérgio Lima Santiago,
Tópico(s)Dental materials and restorations
ResumoThe aim of this study was to evaluate the effect of green tea as a protective measure on eroded dentin. Disks of human coronary dentin were selected based on surface hardness and randomly assigned to 3 groups (n = 10): DW - distilled water, CHX - 0.2% chlorhexidine digluconate, and GT - green tea. The disks were allowed to acquire pellicle for 2 hours and were then subjected to 3 cycles per day of demineralization (C6H8O7 0.05 M, pH 3.75, 60 s), treatment (DW or CHX or GT, 5 min) and remineralization (artificial saliva, 60 min) over a period of 3 days. Changes in the dentin were determined by loss of surface hardness (%SHL) and mechanical profilometry analysis at the end of each day. Data were analyzed by two-way ANOVA followed by Tukey's test for %SHL and profilometry (p < 0.05). Significant reductions in dentin hardness loss were observed only for the CHX group when compared to the DW group (p < 0.05). However, there was no significant difference between the CHX and GT groups (p > 0.05). A significant difference was observed between DW and GT treatments for wear and roughness measurements (p < 0.05). The green tea extract solution was able to reduce the wear and roughness caused by dentin erosion under the conditions of this study.
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