Correlation in the mechanical properties of acrylic denture base resins
Correlation in the mechanical properties of acrylic denture base resins
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DOI：
10.4012/dmj.2011-205
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发表时间：
2012-01-01
影响因子：
2.5
通讯作者：
Asaoka, Kenzo
中科院分区：
文献类型：
--
作者：
Lee, Hae-Hyoung;Lee, Chung-Jae;Asaoka, Kenzo
本研究的目的是测量丙烯酸义齿基托树脂的各种机械性能，包括弯曲模量、弯曲强度、断裂韧性、巴氏硬度和维氏硬度及其相关性能，并调查不同机械性能之间的相关性。根据制造商推荐的说明书制备树脂样品。在规定的标准下测量机械性能。使用相关性检验对来自机械测试的数据进行了检查。一般而言，每个样本组的机械性能平均结果根据测试的机械性能进行不同的排序。弯曲模量值与比例极限、弯曲强度和表面硬度呈强或合理的正相关。与此相反，断裂韧性与弯曲参数和硬度值呈强负相关。不同参数的相关性检验结果可用于临床评价丙烯酸树脂基托的力学性能和质量控制。
The aim of the present study was to measure various mechanical properties of acrylic denture base resins, including flexural modulus, flexural strength, fracture toughness, Barcol and Vickers hardness and their related properties, and to investigate correlations between different mechanical properties. Resin specimens were prepared according to manufacturers' recommended instructions. The mechanical properties were measured under specified standards. Data from the mechanical tests were examined using correlation tests. In general, the mean results for mechanical properties of each specimen group were differently ranked depending on the tested mechanical property. The flexural modulus value showed strong or reasonable positive correlation with those of proportional limit, flexural strength, and surface hardness. In contrast, fracture toughness revealed strong negative correlations with the flexural parameters and hardness values. Results of correlation tests for the different parameters can be used for estimation of mechanical performance of acrylic denture bases in clinical situation and for quality control purposes.