Propagation of erroneous data for the modulus of elasticity of periodontal ligament and gutta percha in FEM/FEA papers: A story of broken links
Propagation of erroneous data for the modulus of elasticity of periodontal ligament and gutta percha in FEM/FEA papers: A story of broken links
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DOI：
10.1016/j.dental.2008.04.006
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发表时间：
2008-12-01
期刊：
影响因子：
5
通讯作者：
Ruse, N. Dorin
中科院分区：
文献类型：
--
作者：
Ruse, N. Dorin
客观的。这篇简短的评论文章是由于发现了过去四分之一个世纪以来牙科文献中一直存在的两个错误而引发的，旨在提醒研究界。方法。使用 PubMed 和 Web of Science 搜索引擎、电子期刊资源对已发表的文献进行广泛搜索，并多次前往图书馆手动检索文章，检索了数百篇报告有限元建模的文章 - 涉及牙周膜 (PDL) 和古塔胶 (GP) 的有限元分析 (FEM/FEA)。结果。文献检索显示，PDL 和 GP 的弹性模量值分别于 1980 年和 1983 年引入了错误的值。识别出的误差范围在两到三个数量级之间，并已在数百篇 FEM/FEA 论文中使用。意义重大。这一发现对数百篇论文中发表的结果的有效性提出了严重质疑，并强调了检查引用的参考文献和引用或至少确认主要来源而不是引用引文的重要性。 (C) 2008 年牙科材料学会。由爱思唯尔有限公司出版。保留所有权利。
Objective. This brief review essay was triggered by the discovery of two errors that have been perpetuated in the dental literature for the last quarter century and is intended to alert the research community.Methods. An extensive search of the published literature, using PubMed and Web of Science search engines, electronic journal resources, and several trips to the library for manual retrievals of articles were used to retrieve hundreds of articles reporting on finite element modeling - finite element analysis (FEM/FEA) involving periodontal ligament (PDL) and gutta percha (GP).Results. The literature search revealed that erroneous values for the modulus of elasticity of PDL and GP were introduced in 1980 and in 1983, respectively. The identified errors range between two to three orders of magnitude and have been used in hundreds of FEM/FEA papers.Significance. The finding casts serious doubts regarding the validity of the results published in hundreds of papers and highlights the importance of checking the references cited and citing, or at least confirming, primary sources rather than citing citations. (C) 2008 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.