使用或不使用预弯导丝的 WaveOne 往复式锉根管解剖结构保存效果。
Root canal anatomy preservation of WaveOne reciprocating files with or without glide path.
机构信息
Department of Endodontics, University of Turin Dental School, Turin, Italy.
出版信息
J Endod. 2012 Jan;38(1):101-4. doi: 10.1016/j.joen.2011.09.030. Epub 2011 Nov 13.
INTRODUCTION
This study evaluated the influence of glide path on canal curvature and axis modification after instrumentation with WaveOne Primary reciprocating files.
METHODS
Thirty ISO 15, 0.02 taper Endo Training Blocks were used. In group 1, glide path was created with PathFile 1, 2, and 3 at working length, whereas in group 2, glide path was not performed. In both groups, canals were shaped with WaveOne Primary reciprocating files at working length. Preinstrumentation and postinstrumentation digital images were superimposed and processed with Matlab r2010b software to analyze the curvature radius ratio (CRr) and the relative axis error (rAe), representing canal curvature modification. Data were analyzed with 1-way balanced analyses of variance at 2 levels (P < .05).
RESULTS
Glide path was found to be extremely significant for both CRr parameter (F = 9.59; df = 1; P = .004) and rAe parameter (F = 13.55; df = 1; P = .001).
CONCLUSIONS
Canal modifications seem to be significantly reduced when previous glide path is performed by using the new WaveOne nickel-titanium single-file system.
简介
本研究评估了在使用 WaveOne Primary 往复锉进行根管预备后，导丝通路对根管弯曲度和轴向修正的影响。
方法
使用 30 个 ISO 15、0.02 锥度的 Endo Training Blocks。在第 1 组中，在工作长度上使用 PathFile 1、2 和 3 建立导丝通路，而在第 2 组中，则不进行导丝通路。在两组中，均在工作长度上使用 WaveOne Primary 往复锉进行根管塑形。对预成形和后成形的数字图像进行叠加，并使用 Matlab r2010b 软件进行处理，以分析曲率半径比（CRr）和相对轴误差（rAe），代表根管弯曲度的修正。数据采用 2 水平的单向平衡方差分析进行分析（P<.05）。
结果
导丝通路对 CRr 参数（F=9.59；df=1；P=.004）和 rAe 参数（F=13.55；df=1；P=.001）都有极显著的影响。
结论
使用新型 WaveOne 镍钛单文件系统进行预成形导丝通路时，根管的修正似乎明显减少。
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