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

[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.

[发布机构] Department of Conservative Dentistry, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia^1

[效力级别] 医药卫生 [学科分类] 卫生学

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