Tekçe Neslihan, Pala Kanşad, Tuncer Safa, Demirci Mustafa
Department of Restorative Dentistry, Faculty of Dentistry, Kocaeli University.
Dent Mater J. 2017 Mar 31;36(2):182-189. doi: 10.4012/dmj.2016-173. Epub 2017 Jan 13.
The purpose of this study was to evaluate the effect of surface sealant application and 10,000 thermocycles on the surface roughness and microhardness of different resin composite systems. A micro-hybrid (G Aenial Posterior), a nano-hybrid (Clearfil Majesty Posterior), a nano-fill (Filtek Ultimate Universal Restorative, Enamel Shade), and a bulk-fill resin composite (Filtek Bulk Fill Posterior Restorative) were used for the study. Specimens were evaluated at 24 h, after application of the surface sealant Fortify Plus, and after thermocycling. Data were analyzed using two-way repeated measures of analysis of variance (ANOVA) and a posthoc Bonferroni test (p<0.05). Surface roughness values of G Aenial Posterior and Filtek Ultimate Universal Restorative increased significantly after surface sealant application. However, neither surface sealant application nor thermocycling had a significant effect on composite microhardness values except Filtek Ultimate Universal Restorative (p>0.05).
本研究的目的是评估表面密封剂的应用以及10000次热循环对不同树脂复合材料系统的表面粗糙度和显微硬度的影响。本研究使用了一种微混合树脂（G Aenial Posterior）、一种纳米混合树脂（Clearfil Majesty Posterior）、一种纳米填充树脂（Filtek Ultimate Universal Restorative，牙釉质色）和一种大块填充树脂复合材料（Filtek Bulk Fill Posterior Restorative）。在应用表面密封剂Fortify Plus后24小时以及热循环后对样本进行评估。使用双向重复测量方差分析（ANOVA）和事后Bonferroni检验（p<0.05）对数据进行分析。应用表面密封剂后，G Aenial Posterior和Filtek Ultimate Universal Restorative的表面粗糙度值显著增加。然而，除了Filtek Ultimate Universal Restorative外，表面密封剂的应用和热循环对复合材料的显微硬度值均无显著影响（p>0.05）。
