Jakupovic Selma, Konjhodzic Alma, Brankovic Lajla Hasic, Korac Samra, Tahmiscija Irmina, Dzankovic Aida, Glamoc Alma Gavranovic
Department of Restorative Dentistry with Endodontics, School of Dentistry, University of Sarajevo, Bosnia and Herzegovina.
Department of Prosthodontics, School of Dentistry, University of Sarajevo, Bosnia and Herzegovina.
Med Arch. 2017 Jun;71(3):204-207. doi: 10.5455/medarh.2017.71.204-207.
The aim of this study was to compare time of preparation and canal aberrations in a simulated root canals after using three different rotary systems: Endostar E5, Endostar E3 and T One File Gold.
A total of 90 endodontic training blocks were used in this study and divided into three groups consisting of 30 each (n = 30). Blocks processing was performed by thirty dentists without any prior experience in rotary instrumentation techniques. In the first group blocks were prepared using Endostar E5, in second one with Endostar E3 and in third one with T One File Gold system. The preparation time was measured. The postoperative image of each block was taken by stereomicroscope and canal aberrations (ledge and instrument fracture) was recorded. Statistical analysis was done by SPSS software.
Instrumentation with T One File Gold system is significantly faster compared to instrumentation with Endostar E5 and Endostar E3 systems (p <0.05). There are no statistically significant differences in the type and number of procedural errors between Endostar E5, Endostar E3 and T One File Gold systems when the operators have no previous experience in rotary instrumentation techniques.
Under the conditions of this study, the incidence of examined canal aberrations were similar for all tested systems. The preparation time was significantly shorter with single file system.
本研究旨在比较使用三种不同的旋转系统（Endostar E5、Endostar E3和T One File Gold）后模拟根管的预备时间和根管形态异常情况。
本研究共使用了90个牙髓病学训练模块，并将其分为三组，每组30个（n = 30）。模块处理由30名在旋转器械技术方面没有任何先前经验的牙医进行。第一组使用Endostar E5预备模块，第二组使用Endostar E3，第三组使用T One File Gold系统。测量预备时间。每个模块术后通过体视显微镜拍照，并记录根管形态异常情况（台阶和器械折断）。使用SPSS软件进行统计分析。
与使用Endostar E5和Endostar E3系统相比，使用T One File Gold系统进行器械预备明显更快（p <0.05）。当操作者在旋转器械技术方面没有先前经验时，Endostar E5、Endostar E3和T One File Gold系统之间在操作失误的类型和数量上没有统计学显著差异。
在本研究条件下，所有测试系统检查出的根管形态异常发生率相似。单根管系统的预备时间明显更短。
