DA Silva Marcos Aurélio Bomfim, Vitti Rafael Pino, Sinhoreti Mário Alexandre Coelho, Consani Rafael Leonardo Xediek, Silva-Júnior José Ginaldo da, Tonholo Josealdo
Department of Restorative Dentistry, School of Dentistry, Alagoas Federal University.
Dent Mater J. 2016;35(4):621-6. doi: 10.4012/dmj.2015-383.
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.
本研究的目的是评估浸泡在酒精饮料中的复合树脂的显微硬度和表面粗糙度。使用了三种复合树脂：杜拉菲尔（贺利氏古莎）、Z250（3M-ESPE）和Z350 XT（3M-ESPE）。测量了初始表面粗糙度和显微硬度。将样本分为四组（n = 30）：G1-人工唾液；G2-啤酒；G3-伏特加；G4-威士忌。样本每天浸泡在饮料中3次，每次15分钟，共浸泡30天。浸泡期结束后重复进行表面粗糙度和显微硬度测定。数据采用双向方差分析和Tukey-HSD检验进行统计学分析（p<0.05）。浸泡在啤酒和威士忌中的所有复合树脂的表面粗糙度均增加。浸泡在酒精饮料中后，所有组的显微硬度均下降。这些饮料对牙科复合材料的影响取决于溶液的化学成分、浸泡时间、酒精含量和pH值。
