不同形式的石墨烯和聚乙烯吡咯烷酮对PMMA物理强化效果的比较

IF 0.2 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Journal of International Clinical Dental Research Organization Pub Date : 2022-08-31 DOI:10.5577/intdentres.2022.vol12.no2.4
Server Mutluay Ünal
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引用次数: 0

摘要

目的:本研究的目的是比较石墨烯和聚乙烯吡罗烷酮(PVP)的粉末、毡状和片状形式对聚甲基丙烯酸甲酯(PMMA)抗弯强度的影响。方法:取PMMA标本75份(64 × 13 × 3 mm),分为5组,每组15份,其中1组为对照组。对照组样品中不添加强化材料。在PMMA+聚乙烯吡咯烷酮粉末(PVPP)组(B组)和PMMA+石墨烯粉末(GP)组(D组)中,分别添加PVP(0.5%)和石墨烯(0.01%)粉末。在PMMA+聚乙烯吡啶酮纤维垫(PVPM) (C组)和PMMA+石墨烯片(GS)组(E组)中,PVP垫和石墨烯片分别放置在方形PMMA树脂模具的中心。采用三点弯曲试验(ISO 1567)测试试样的抗弯曲性能。在扫描电子显微镜(SEM)下检查断裂线,并使用单因素方差分析(ANOVA)分析弯曲强度。结果:GS组(118.5093±11.94859 Mpa)与PVPP组(105.5267±6.80595 Mpa)差异有统计学意义。PVPM组(115.8487±17.15440)、GS组(118.5093±11.94859)、GP组(116.2680±16.03207)的弯曲抗力平均值均高于对照组(108.2407±24.23104)。石墨烯薄片和PVP垫比两种材料的粉末形式表现出更高的抗弯曲能力。结论:PVP垫和石墨烯片在临床应用中均优于PMMA强化效果和颜色效果。如何引用本文:Mutluay Ünal S.不同形式的石墨烯和聚乙烯吡咯烷酮对PMMA物理强化效果的比较。国际医学杂志,2018;12(2):62-9。https://doi.org/10.5577/intdentres.2022.vol12.no2.4语言修改:本手稿中的英语已由至少两名专业编辑检查,他们都是英语母语者。
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A comparison of the effect of different forms of Graphene and Polyvinylpyrrolidone on physically strengthening PMMA
Aim: The aim of this study was to compare the effects of powder, mat, and sheet forms of graphene and polyvinylpyrrolidone (PVP) on the bending strength of polymethyl methacrylate (PMMA). Methodology: A total of 75 PMMA samples (64 x 13 x 3 mm) were obtained and separated into five groups of 15, one of which was the control group. No strengthening material was added to the control group samples. In the PMMA+Polyvinylpyrrolidone powder (PVPP) (Group B) and PMMA+Graphene powder (GP) groups (Group D), PVP (0.5%) and graphene (0.01%) powders, respectively were added to the PMMA. In the PMMA+Polyvinylpryrolidone fiber mat (PVPM) (Group C) and PMMA+Graphene sheet (GS) groups (Group E), a PVP mat and graphene sheet, respectively were placed in the center of a square PMMA resin mold. To measure the samples’ resistance to bending, the three-point bending test (ISO 1567) was applied. Fracture lines were examined under a scanning electron microscope (SEM), and bending strength was analyzed using one-way analysis of variance (ANOVA). Results: A statistically significant difference was determined between the GS (118.5093 ± 11.94859 Mpa) and PVPP (105.5267 ± 6.80595 Mpa) groups. The mean bending resistance values were numerically higher in the PVPM (115.8487 ± 17.15440), GS (118.5093 ± 11.94859), and GP (116.2680 ± 16.03207) groups compared to the control group (108.2407 ± 24.23104). The graphene sheets and PVP mats showed higher resistance to bending than the powder form of either material. Conclusion: In clinical dental prosthesis use, PVP mats and graphene sheets are preferable with respect to both PMMA strengthening and color.   How to cite this article: Mutluay Ünal S. A comparison of the effect of different forms of Graphene and Polyvinylpyrrolidone on physically strengthening PMMA. Int Dent Res 2022;12(2):62-9. https://doi.org/10.5577/intdentres.2022.vol12.no2.4   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
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