Effects of Retreatment Kits and Laser Activated Irrigation On Root Canal Retreatment
Project no. 384 · Status: Kapanmış · 2015
Summary
The aim of this study was to evaluate the efficacy of Er;Yag laser actived irrigation in extracted teeth on root canal retreatment process using two different rotary instrument systems.Extracted mandibular premolar teeth were decoronated and instrumented up to Protaper Universal F3 file,and then filled with ProTaper Universal F3 guttapercha and AH Plus sealer.Root canal fillings were removed With ProTaper retreatment kit for half of the samples and Mtwo Retreatment kit for the other half.Four study groups were obtained in total and root canal filling removal activities were evaluated.Samples were sectioned longitudinally and photographed with a stereomicroscope at *8 magnification.The percantage of remaining filling material on coronal,middle and apical canal walls was calculated.For statistical evaluation Two-Way analysis of varianc for root canal retreatment technique groups and root canal regions was performed root canal retreatment techniques used each root canal region were encountered.Er-Yag laser activation with PIPS was more effective in removing canal filling material than conventional irrigation.There was no significant difference in canal filling removal efficency between the ProTaper R and Mtwo R rotary kits.The amount of residual filling material was seen in the apical, middle and coronal regions of root in the order of higher to lower, respectively,and the difference between them was statistically significant. According to the results of our study,we think that Er,Yag laser activated irrigation with PIPS can be used as an effective method for root canal filling removal in coronal and middle part of the root in endodontic retreatment.