The aims of this paper were to review the current strength testing methods of the dental resin-based composites (RBCs) and to explore the inconsistencies with regard to strength testing among researchers. >Data selection/extraction: An outline of the most relevant aspects of RBCs was created, and a subsequent literature search for articles published during last four decades (1970-2010) was conducted using the databases, namely PubMed, Science Direct and ISI Web of Knowledge. >Conclusion: The literature review highlighted a lack of consensus among researchers regarding the reliability of ISO recommended three-point flexure strength testing method. Several investigators have used Weibull statistics for the analysis of RBCs strength data, however their applicability might be questioned as many RBCs contain greater resin content and may exhibit sufficient viscous deformation prior to brittle failure. In addition, variability in the selection of cross-head speed and mould material for strength testing was evident which may lead to variation in the strength data and render the interpretation difficult among researchers.
展开▼
机译:本文的目的是回顾牙科树脂基复合材料(RBC)的当前强度测试方法,并探讨研究人员在强度测试方面的不一致之处。 >数据选择/提取: strong>创建了RBC最相关方面的概述,并随后使用数据库PubMed对最近四个十年(1970-2010年)发表的文章进行了文献检索, Science Direct和ISI Web of Knowledge。 >结论: strong>文献综述强调,研究人员对ISO推荐的三点弯曲强度测试方法的可靠性缺乏共识。几位研究人员已经使用威布尔统计数据分析了RBC的强度数据,但是由于许多RBC包含更多的树脂含量并且在脆性破坏之前可能表现出足够的粘性变形,因此它们的适用性可能受到质疑。此外,用于强度测试的十字头速度和模具材料的选择存在明显差异,这可能导致强度数据发生变化,并使研究人员难以理解。
展开▼