Lim T S, Wee T Y, Choi M Y, Koh W C, Sae-Lim V
Department of Restorative Dentistry, Faculty of Dentistry, National University of Singapore, Republic of Singapore.
Int Endod J. 2003 May;36(5):336-43. doi: 10.1046/j.1365-2591.2003.00648.x.
To evaluate the effectiveness of Glyde File Prep used in conjunction with sodium hypochlorite irrigation in the removal of smear layer produced during root canal instrumentation.
Thirty-nine extracted human teeth with single root canals were used. Access cavities were prepared and the teeth divided into three groups of 13 teeth each. Each group was treated by one of the three different regimes of irrigation and conditioning during root canal instrumentation. Group A: 0.5 mL of 1% NaOCl irrigation after each file size with an additional final irrigation of 10 mL 1% NaOCl; group B: 0.5 mL of 1% NaOCl irrigation after each file size with an additional final irrigation of 10 mL 17% EDTA; group C: Glyde File Prep coated on each instrumentation file used in conjunction with 0.5 mL 1% NaOCl irrigation after each file size and an additional final irrigation of 10 mL 1% NaOCl. The teeth were then longitudinally grooved and sectioned. Root canal cleanliness was evaluated with the aid of a Nikon light microscope (x40 and x100) and scanning electron microscope (x1000 and x3000). The debris scores obtained at three canal regions were compared statistically within the same group and among different groups using repeated measurements of analysis of variance (anova) with Bonferroni adjustments and anova with posthoc Tukey HSD, respectively.
The canals treated with EDTA and Glyde File Prep were significantly cleaner than those treated with NaOCl alone. The apical region of the root canals generally displayed more residual smear layer, but the difference was not significant.
Used in conjunction with NaOCl irrigation, Glyde File Prep was effective in removing smear layer produced during root canal instrumentation.
评估Glyde File Prep与次氯酸钠冲洗联合使用在去除根管预备过程中产生的玷污层方面的有效性。
使用39颗单根管的拔除人牙。制备进入腔，将牙齿分为三组，每组13颗。每组在根管预备期间采用三种不同的冲洗和预处理方案之一进行处理。A组：每个锉号使用0.5 mL 1%次氯酸钠冲洗，最后额外冲洗10 mL 1%次氯酸钠；B组：每个锉号使用0.5 mL 1%次氯酸钠冲洗，最后额外冲洗10 mL 17%乙二胺四乙酸（EDTA）；C组：在每个预备锉上涂抹Glyde File Prep，每个锉号后联合使用0.5 mL 1%次氯酸钠冲洗，最后额外冲洗10 mL 1%次氯酸钠。然后将牙齿纵向开槽并切片。借助尼康光学显微镜（40倍和100倍）和扫描电子显微镜（1000倍和3000倍）评估根管清洁度。在同一组内和不同组之间，分别使用重复测量方差分析（anova）并进行Bonferroni校正以及使用anova和事后Tukey HSD检验，比较在三个根管区域获得的碎屑评分。
用EDTA和Glyde File Prep处理的根管明显比仅用次氯酸钠处理的根管更清洁。根管根尖区域通常显示有更多的残留玷污层，但差异不显著。
与次氯酸钠冲洗联合使用时，Glyde File Prep在去除根管预备过程中产生的玷污层方面有效。
