Comparison of surface roughness of nanofilled and nanohybrid composite resins after polishing with a multi-step technique

1st Physics and Technologies in Medicine and Dentistry Symposium

物理学;医药卫生

Itanto, B.S.H.^1 ; Usman, M.^1 ; Margono, A.^1

Department of Conservative Dentistry, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia^1

关键词: Artificial saliva;    Composite resins;    Filtek Z250;    Mean surface roughness;    Nano hybrids;    Nano-filled composites;    Nano-hybrid composites;    Standard deviation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/884/1/012091/pdf
DOI  :  10.1088/1742-6596/884/1/012091

学科分类：卫生学

来源: IOP

【 摘 要 】

To compare the surface roughness of nanofilled and nanohybrid composite resins after polishing using a multi-step technique. 40 composite resin specimens were divided into two groups (20 nanofilled specimens using Filtek Z350 XT [group A] and 20 nanohybrid specimens using Filtek Z250 XT [group B]), prepared, and then polished. After immersion in artificial saliva for 24 hours, the surface roughness was measured with a surface roughness tester. The mean surface roughness results along with the standard deviation of group A were 0.0967 μm ±0.0174, while the results of group B were 0.1217 μm ±0.0244. Statistically (with p = 0.05), there were significant differences between each group. The surface roughness of a nanofilled composite resin after polishing with a multi-step technique is better than that of a nanohybrid composite resin.