Ramirez-Molina Robert, Kaplan Andrea E
Department of Operative Dentistry, School of Dentistry, University of Los Andes, Mérida, Venezuela.
Department of Dental Materials, School of Dentistry, University of Buenos Aires, Buenos Aires, Argentina.
Acta Odontol Latinoam. 2015 Apr;28(1):64-71. doi: 10.1590/S1852-48342015000100009.
The aim of this study was to determine the influence of the finishing protocol (FP) on flexural properties of several composites (CR). Twenty composite samples (25x2x2 mm) were prepared: G1 HelimolarR; G2 Filtek™ Z350;G3TetricR N Ceram, G4 Point 4™, G5 Premisa™; G6 Esthet.XR HD, G7 ice, G8 Vit-L-escenceR, G9 GrandioR, G10 TPHR3, G11 AmelogenR Plus, G12 Brilliant Enamel; G13 Filtek™ Z100 and randomly divided into four groups according to the finishing system: C control, J JiffyR, SS Super SnapR, AA AstropolR /AstrobrushR. Each sample was polished for 10 seconds with each sequence instrument, and stored in distilled water for 24 hours, after which a three-point flexure test was applied to determine flexural strength (FS) and modulus (Flexural modulus). Data were analyzed using a two-way multivariate ANOVA and means were compared with Tukey's test. Results were: FS level CR p=0.000 with significant differences. FS level FPp= 0.093 with significant differences. In order: FM level CR p 0.00 with significant differences. FM level PS p=0.001; with significant differences. Under the study conditions, the polishing systems based on silicone rubber decreased the flexural properties of composite resins.
本研究的目的是确定修整方案（FP）对几种复合材料（CR）弯曲性能的影响。制备了20个复合材料样本（25×2×2毫米）：G1 HelimolarR；G2 Filtek™ Z350；G3 TetricR N Ceram；G4 Point 4™；G5 Premisa™；G6 Esthet.XR HD；G7 ice；G8 Vit-L-escenceR；G9 GrandioR；G10 TPHR3；G11 AmelogenR Plus；G12 Brilliant Enamel；G13 Filtek™ Z100，并根据修整系统随机分为四组：C对照组、J JiffyR、SS Super SnapR、AA AstropolR /AstrobrushR。每个样本用每种序列仪器抛光10秒，并在蒸馏水中储存24小时，之后进行三点弯曲试验以确定弯曲强度（FS）和模量（弯曲模量）。使用双向多因素方差分析对数据进行分析，并将均值与Tukey检验进行比较。结果为：FS水平CR p = 0.000，存在显著差异。FS水平FP p = 0.093，存在显著差异。依次为：FM水平CR p = 0.00，存在显著差异。FM水平PS p = 0.001，存在显著差异。在本研究条件下，基于硅橡胶的抛光系统降低了复合树脂的弯曲性能。
