Kannan Roghith, Eid Bassem, Adtani Pooja, Elsewify Tarek, Elemam Ranya
Department of Restorative Dental Science, Gulf Medical University, College of Dentistry, Ajman, UAE.
Department of Basic Medical and Dental Sciences, Gulf Medical University, College of Dentistry, Ajman, UAE.
Eur Endod J. 2025 May;10(3):230-236. doi: 10.14744/eej.2025.51423.
To evaluate the effectiveness of three rotary file systems on the elimination of Enterococcus faecalis (E. faecalis) biofilms in single-rooted teeth.
A total of 70 mandibular premolars were included in this study in which 60 root canals were inoculated with E. faecalis. The positive control group (n=5) received bacterial inoculation without mechanical preparation. The negative control group (n=5) was neither infected nor mechanically prepared. The teeth were randomly assigned to 3 experimental groups (n=20 per-group) according to application of the rotary files: Group 1: XP-endo Rise Shaper (FKG, Le Crêt-du-Locle, Switzerland); Group 2: XP-endo Shaper (FKG, Le Crêt-du-Locle, Switzerland); Group 3: ProTaper Gold (Dentsply Sirona, Erlangen, Germany). Samples were collected using paper points before (S1) and after (S2) mechanical preparation. Colony-forming units (CFUs) were used to quantify bacterial loads.
Significant differences in bacterial counts were observed from S1 to S2 in all tested groups (p<0.001). Intergroup comparisons revealed no significant differences between the XP-endo Rise Shaper and XP-endo Shaper groups (p>0.05) and between XP-endo Shaper and ProTaper Gold groups (p>0.05). Significant differences were observed between the XP-endo Rise Shaper and ProTaper Gold groups (p<0.05). The XP-endo Rise shaper group showed the largest reduction in bacterial loads (98.2%), followed by the XP-endo Shaper (96.0%) and ProTaper Gold (93.8%) groups.
All tested rotary files were able to reduce bacteria but the novel single-file system (XP-endo Rise shaper) was superior in reducing bacterial load compared to XP-endo Shaper and the multiple file system (ProTaper Gold). (EEJ-2024-08-133).
评估三种旋转锉系统对单根牙中粪肠球菌（E. faecalis）生物膜的清除效果。
本研究共纳入70颗下颌前磨牙，其中60个根管接种了粪肠球菌。阳性对照组（n = 5）接受细菌接种但未进行机械预备。阴性对照组（n = 5）既未感染也未进行机械预备。根据旋转锉的应用情况，将牙齿随机分为3个试验组（每组n = 20）：第1组：XP-endo Rise Shaper（FKG，瑞士勒克勒-德洛克莱）；第2组：XP-endo Shaper（FKG，瑞士勒克勒-德洛克莱）；第3组：ProTaper Gold（登士柏西诺德，德国埃尔兰根）。在机械预备前（S1）和后（S2）使用纸尖收集样本。采用菌落形成单位（CFUs）对细菌载量进行定量。
所有测试组从S1到S2的细菌计数均有显著差异（p < 0.001）。组间比较显示，XP-endo Rise Shaper组与XP-endo Shaper组之间（p > 0.05）以及XP-endo Shaper组与ProTaper Gold组之间（p > 0.05）均无显著差异。XP-endo Rise Shaper组与ProTaper Gold组之间存在显著差异（p < 0.05）。XP-endo Rise Shaper组的细菌载量降低幅度最大（98.2%），其次是XP-endo Shaper组（96.0%）和ProTaper Gold组（93.8%）。
所有测试的旋转锉都能减少细菌，但新型单锉系统（XP-endo Rise Shaper）在降低细菌载量方面优于XP-endo Shaper和多锉系统（ProTaper Gold）。（EEJ-2024-08-133）
