两种根管冲洗剂与Nd:YAG激光去除玷污层的比较研究：一项扫描电子显微镜研究
A Comparative Study of the Removal of Smear Layer by Two Endodontic Irrigants and Nd:YAG Laser: A Scanning Electron Microscopic Study.
作者信息
Hasheminia Seyed Mohsen, Birang Reza, Feizianfard Mahboobe, Nasouri Mina
机构信息
Department of Endodontics and Torabinejad Dental Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan 817463461, Iran.
出版信息
ISRN Dent. 2012;2012:620951. doi: 10.5402/2012/620951. Epub 2012 Jul 16.
The aim of this study was to compare the effect of 17% EDTA, 5% maleic acid, and Nd:YAG laser on smear layer removal by SEM. Eighty single-rooted teeth were divided into three groups of 25 according to the final procedure for smear layer removal: irrigation by 17% EDTA or 5% maleic acid or Nd:YAG laser irradiation. The other five teeth was used as control. Roots were sectioned into buccal and lingual parts, and smear layer presence was recorded in the coronal, middle, and apical thirds under SEM. Data were analyzed by Kruskal-Wallis, Mann-Whitney, Friedman, and Wilcoxon tests. There was no significant difference between smear layer removal of 17% EDTA and 5% maleic acid. Nd:YAG laser showed the least effect significantly. The coronal part of samples was significantly cleaner than the middle, and the middle was cleaner than the apical section. 17% EDTA and 5% maleic acid were more effective in smear layer removal compared to Nd:YAG laser.
本研究旨在通过扫描电子显微镜（SEM）比较17%乙二胺四乙酸（EDTA）、5%马来酸和钕钇铝石榴石（Nd:YAG）激光对玷污层去除的效果。根据最终的玷污层去除程序，将80颗单根牙分为三组，每组25颗：分别用17% EDTA冲洗、5%马来酸冲洗或Nd:YAG激光照射。另外5颗牙作为对照。将牙根切成颊侧和舌侧部分，在SEM下记录冠部、中部和根尖三分之一处玷污层的存在情况。数据采用Kruskal-Wallis检验、Mann-Whitney检验、Friedman检验和Wilcoxon检验进行分析。17% EDTA和5%马来酸在去除玷污层方面没有显著差异。Nd:YAG激光的效果显著最差。样本的冠部明显比中部更清洁，中部比根尖部分更清洁。与Nd:YAG激光相比，17% EDTA和5%马来酸在去除玷污层方面更有效。
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