The effect of different irrigation protocols on smear layer removal in root canals of primary teeth: a SEM study
The effect of different irrigation protocols on smear layer removal in root canals of primary teeth: a SEM study
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DOI：
10.1080/00016357.2019.1577491
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发表时间：
2019-07-04
影响因子：
2
通讯作者：
Sari, Saziye
中科院分区：
文献类型：
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作者：
Demirel, Akif;Yuksel, Burcu Nihan;Sari, Saziye
目的：通过扫描电镜（SEM）比较不同灌洗方式对乳牙根管内涂垢层去除的效果。材料与方法：将40颗拔除的上颌一切牙分为4组（n = 10），分别为1%次氯酸钠（NaOCl）、10%乙二胺四乙酸(EDTA)+1% NaOCl、6%柠檬酸(CA)+1% NaOCl、0.9%生理盐水（PS）。冲洗过程结束后，通过扫描电镜检查根管壁，并对冲洗溶液去除涂抹层的效果进行评分和比较。数据分析采用Kruskal-Wallis， Friedman和Siegel Castellan检验。结果：10% EDTA + 1% NaOCl组和6% CA + 1% NaOCl组的抹层去除效果显著高于其他组（p < 0.05）。实验组冠状区和中三分之一区涂片去除效果显著高于根尖区。结论：10% EDTA + 1% NaOCl和6% CA + 1% NaOCl可作为去除涂抹层的替代灌溉方案。然而，由于没有侵蚀性牙本质变化，与10% EDTA + 1% NaOCl相比，在主根管中推荐使用6% CA + 1% NaOCl。
Objective: The purpose of this study was to compare the efficacy of different irrigation protocols on smear layer removal in root canals of primary teeth by scanning electron microscopy (SEM). Material and methods: The study was conducted with 40 extracted maxillary primary incisor teeth divided into four groups (n = 10) as 1% sodium hypochlorite (NaOCl), 10% ethylenediaminetetraacetic acid (EDTA)+1% NaOCl, 6% citric acid (CA)+1% NaOCl, and 0.9% physiological saline (PS). After the irrigation procedures, root canal walls were examined by SEM and the efficacies of irrigation solutions in smear layer removal were scored and compared. Data were analyzed using Kruskal-Wallis, Friedman and Siegel Castellan tests. Results: The smear layer removal was found to be statistically more effective in groups of 10% EDTA + 1% NaOCl and 6% CA + 1% NaOCl when compared with the other groups (p < .05). Smear removal efficacy was statistically significantly higher in coronal and medium thirds when compared with the apical regions in the experimental groups. Conclusions: It was concluded that 10% EDTA + 1% NaOCl and 6% CA + 1% NaOCl could be alternative irrigation protocols regarding smear layer removal. However, due to the absence of erosive dentinal changes, it might be suggested that using 6% CA + 1% NaOCl can be recommended compared to 10% EDTA + 1% NaOCl in primary root canals.