Dental Materials Journal
Online ISSN : 1881-1361
Print ISSN : 0287-4547
ISSN-L : 0287-4547
Original Paper
Effect of alcoholic beverages on surface roughness and microhardness of dental composites
Marcos Aurélio Bomfim DA SILVARafael Pino VITTIMário Alexandre Coelho SINHORETIRafael Leonardo Xediek CONSANIJosé Ginaldo da SILVA-JÚNIORJosealdo TONHOLO
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2016 Volume 35 Issue 4 Pages 621-626


The aim of this study was to evaluate the microhardness and surface roughness of composite resins immersed in alcoholic beverages. Three composite resins were used: Durafill (Heraeus Kulzer), Z250 (3M-ESPE) and Z350 XT (3M-ESPE). The inital surface roughness and microhardness were measured. The samples were divided into four groups (n=30): G1-artificial saliva; G2-beer; G3-vodka; G4-whisky. The samples were immersed in the beverages 3× a day for 15 min and 30 days. The surface roughness and microhardness assays were repeated after immersion period. The data were statistically analyzed by two-way ANOVA and Tukey-HSD test (p<0.05). Surface roughness increased for all composite resins immersed in beer and whisky. Microhardness of all groups decreased after immersion in alcoholic beverages. The effect of these beverages on dental composites is depended upon the chemical composition, immersion time, alcohol content and pH of solutions.

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© 2016 The Japanese Society for Dental Materials and Devices
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