Influence of UEDMA, BisGMA and TEGDMA on selected mechanical properties of experimental resin composites
Influence of UEDMA, BisGMA and TEGDMA on selected mechanical properties of experimental resin composites
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DOI：
10.1016/s0109-5641(98)00009-8
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发表时间：
1998-01-01
期刊：
影响因子：
5
通讯作者：
Peutzfeldt, A
中科院分区：
文献类型：
--
作者：
Asmussen, E;Peutzfeldt, A
目标。本研究旨在确定 UEDMA、BisGMA 和 TEGDMA 对实验树脂复合材料选定机械性能的影响。方法。制备了 TEGDMA 和 BisGMA 和/或 UEDMA 的三十种单体混合物。五种基础单体混合物的 TEGDMA 和 BisGMA 之间的摩尔关系如下：30:70、40:60、50:50、60:40 和 70:30。然后生产单体混合物，其中 BisGMA 依次被 UEDMA 取代，每次 10 mol%。该树脂可光固化并添加填料。直径拉伸强度、弯曲强度和弹性模量是在1周龄的样品上测定的。通过方差分析和响应面方法对结果进行分析。结果。树脂复合材料的径向拉伸强度在52至59 MPa之间变化，弯曲强度在137至167 MPa之间变化，弹性模量在8.0至11.1 GPa之间变化。统计分析表明，用UEDMA替代BisGMA或TEGDMA导致拉伸和弯曲强度增加，并且用TEGDMA替代BisGMA增加了拉伸强度，但降低了弯曲强度。此外，发现对于给定的UEDMA含量，BisGMA/TEGDMA比率的变化导致弹性模量的最大值。该模量最大值的大小随着 UEDMA 含量的增加而减小。显着性。改变UEDMA、BisGMA和TEGDMA的相对量对树脂组合物的机械性能具有显着影响。因此，通过选择这些组分的特定组合，可以设计出具有针对特定应用定制的特性的复合材料。 (C) 1998 年牙科材料学院。由爱思唯尔科学有限公司出版
Objectives. This study was conducted to determine the effect of UEDMA, BisGMA and TEGDMA on selected mechanical properties of experimental resin composites.Methods. Thirty monomer mixtures of TEGDMA and BisGMA and/or UEDMA were produced. Five base monomer mixtures had the following molar relationships between TEGDMA and BisGMA: 30:70, 40:60, 50:50, 60:40 and 70:30. Monomer mixtures were then produced in which BisGMA was successively substituted by UEDMA, 10 mol% at a time. The resins were made light-curing and loaded with filler. Diametral tensile strength, flexural strength and modulus of elasticity were determined on 1 week old specimens. The results were analyzed by ANOVA and by response surface methodology.Results. The diametral tensile strength of the resin composites varied between 52 and 59 MPa, the flexural strength between 137 and 167 MPa, and the modulus of elasticity between 8.0 and 11.1 GPa. The statistical analyses showed that substitution of BisGMA or TEGDMA by UEDMA resulted in an increase in tensile and flexural strength, and that substitution of BisGMA by TEGDMA increased tensile, but reduced flexural strength. Further, it was found that, for a given content of UEDMA, variations in the ratio BisGMA/TEGDMA gave rise to a maximum in modulus of elasticity. The size of this maximum in modulus decreased with increasing content of UEDMA.Significance. Varying the relative amounts of UEDMA, BisGMA and TEGDMA has a significant effect on the mechanical properties of the resin composition. Thus, by selecting specific combinations of these components, it may be possible to design composites with properties that are tailor made to specific applications. (C) 1998 Academy of Dental Materials. Published by Elsevier Science Ltd.