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首页> 外文期刊>Dental Materials Journal >Effects of coating with different ceromers on the impact strength, transverse strength and elastic modulus of polymethyl methacrylate
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Effects of coating with different ceromers on the impact strength, transverse strength and elastic modulus of polymethyl methacrylate

机译：不同ceromers涂层对聚甲基丙烯酸甲酯冲击强度，横向强度和弹性模量的影响

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摘要

The aim of this study was to evaluate the mechanical properties of polymethyl methacrylate (PMMA) after coating with different ceromers. For transverse strength and modulus of elasticity tests, specimens of 65×10×2.5 mm dimensions were prepared (5 groups, n =10). For impact strength test, specimens of 60×7.5×4 mm dimensions were prepared (5 groups, n =10). Test group specimens were coated with one of four different types of ceromers, and specimens in the control group were not coated. After specimens were tested for transverse and impact strengths, the data were analyzed with Kruskal-Wallis and Conover post hoc tests (p <0.05). GLYMOTEOS-TiO_(2) and A174-TEOS significantly increased the transverse strength of PMMA. All ceromers caused a statistically significant increase in the elastic modulus of PMMA. While GLYMO-TEOS-ZrO_(2) significantly decreased the impact strength, the other ceromers did not cause any statistically significant difference in impact strength. Coating with ceromers substantially improved the mechanical properties of PMMA.
机译：这项研究的目的是评估用不同的ceromer涂覆后的聚甲基丙烯酸甲酯（PMMA）的机械性能。为了进行横向强度和弹性模量测试，制备了65×10×2.5mm尺寸的样品（5组，n ＝ 10）。为了进行冲击强度测试，制备了60×7.5×4mm尺寸的样品（5组，n ＝ 10）。测试组标本涂有四种不同类型的陶瓷中的一种，而对照组的标本未涂有。在测试样品的横向强度和冲击强度之后，使用Kruskal-Wallis和Conover事后测试分析数据（> 0.05）。 GLYMOTEOS-TiO_（2）和A174-TEOS显着提高了PMMA的横向强度。所有ceromers导致PMMA的弹性模量在统计学上显着增加。尽管GLYMO-TEOS-ZrO_（2）显着降低了冲击强度，但其他ceromers并没有引起统计上的显着差异。用ceromers涂层大大改善了PMMA的机械性能。

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