Stenman E, Spångberg L S
Department of Oral Diagnosis, Faculty of Odontology, University of Umea, Sweden.
J Endod. 1993 Jul;19(7):327-34. doi: 10.1016/S0099-2399(06)81358-0.
In an earlier study we demonstrated that root canal instruments vary greatly in their effectiveness in removing substrates. To further analyze the reason for this variation of results, the dimensions of the instruments used were considered of interest as their matching effectiveness may be size dependent. Nine different brands of Hedstrom files, seven brands of K files, and four brands of special files were examined. The measurements were done in a computerized measuring microscope and the data were compared with earlier reported data on machining. Although the dimensions of the instruments varied greatly, no correlation could be found between the machining and dimensions. Only one brand of files was completely within allowable size range.
在早期的一项研究中，我们证明了根管器械在去除底物的有效性方面差异很大。为了进一步分析结果差异的原因，所用器械的尺寸被认为是值得关注的，因为它们的匹配有效性可能取决于尺寸。研究了9个不同品牌的H锉、7个品牌的K锉和4个品牌的特殊锉。测量是在计算机化测量显微镜下进行的，数据与早期报告的加工数据进行了比较。尽管器械的尺寸差异很大，但在加工与尺寸之间未发现相关性。只有一个品牌的锉完全在允许的尺寸范围内。
