Abdulhaligov Mushfig, Yilmaz Nagehan, Tuzuner Tamer, Baygin Ozgul, Emeksiz Cansu
Department of Pediatric Dentistry, Faculty of Dentistry, Karadeniz Technical University, Trabzon,Turkiye.
Eur Oral Res. 2024 May 5;58(2):58-63. doi: 10.26650/eor.20241057693.
The objective of this study is to evaluate the amount of apically extruded debris and working time during root canal treatment with three different primary teeth rotary instrument systems.
A total of 80 extracted primary second molar teeth were randomly divided into four groups (n=20) stratified by the instruments used: AF Baby Rotary, Easyinsmile Baby Rotary, Endoart Pedo Gold, and hand files. The apical extrusion of debris was collected then dried in Eppendorf tubes that were pre-weighed with 10-4 precision micro-balance. The incubation period was set as 14 days at 37°C. The dry weight was procured by deducting the preoperative weight from the postoperative weight. The systems' working time was calculated by chronometer. Mann Whitney U test with Bonferroni correction was used for pairwise comparison following the variance analysis with Kruskal Wallis test. Wilcoxon test was used for intragroup comparison.
Although all instruments caused apically extruded debris (p<0.001), there was no statistically significant difference between the groups in debris extrusion. However, the longest working time was found in the manual K files, the Endoart Pedo Gold system had the shortest working time (p<0.001).
Our results demonstrate that all instrument systems caused apical extrusion of debris. Furthermore, the rotary instrument systems designed for primary teeth exhibited significantly shorter working time.
本研究的目的是评估使用三种不同的乳牙旋转器械系统进行根管治疗时根尖挤出碎屑的量和工作时间。
总共80颗拔除的乳牙第二磨牙随机分为四组（n = 20），根据所使用的器械分层：AF Baby Rotary、Easyinsmile Baby Rotary、Endoart Pedo Gold和手动锉。收集根尖挤出的碎屑，然后在预先用精度为10 - 4的微量天平称重的Eppendorf管中干燥。在37°C下设定孵育期为14天。通过术后重量减去术前重量获得干重。系统的工作时间用计时器计算。在进行Kruskal Wallis检验的方差分析后，采用经Bonferroni校正的Mann Whitney U检验进行两两比较。采用Wilcoxon检验进行组内比较。
尽管所有器械都会导致根尖挤出碎屑（p < 0.001），但各组之间在碎屑挤出方面没有统计学上的显著差异。然而，手动K锉的工作时间最长，Endoart Pedo Gold系统的工作时间最短（p < 0.001）。
我们的结果表明，所有器械系统都会导致根尖挤出碎屑。此外，专为乳牙设计的旋转器械系统工作时间明显更短。
