Yigit D.H.Orucoglu H.Yavuz T.Yavuz C.I.Yilmaz A.Kaba Y.N.Ozden S.2020-03-262020-03-262014Yiğit, D. H., Orucoğlu, H., Yavuz, T., Yavuz, C. I., Yilmaz, A., Kaba, Y. N., Ozden, S. (2014). An Evaluation of the Apical Seal in Oval-Shaped Root Canals Prepared with either Self- Adjusting Files or Protaper Files. Cumhuriyet Dental Journal, 17(2), 109-116.2146-2852https://dx.doi.org/10.7126/cdj.58140.1008002163https://hdl.handle.net/20.500.12395/31367Objectives: This study aimed to evaluate the apical seal obtained with lateral compaction of gutta-percha in oval-shaped root canals prepared with either self-adjusting files or ProTaper Universal rotary files. Materials and Methods: Twelve pairs of extracted mandibular premolars with oval-shaped root canals were randomly divided into two groups. The first group was biomechanically prepared with ProTaper Universal files, while the self-adjusting file system was used in the second group. The roots were better filled using cold lateral compaction of gutta-percha. Apical microleakage was measured with the computerized fluid filtration method. The results were analyzed statistically using the Mann-Whitney U test. Results: All of the roots in both groups showed leakage. Group 1 demonstrated significantly less microleakage (p<0.05). Conclusions: Instrumentation of oval-shaped canals using a self-adjusting file system with cold lateral compaction of gutta-percha demonstrated significantly greater apical microleakage when compared to ProTaper Universal. The apical leakage with different filling techniques, combined with self-adjusting files, should be evaluated in further studies.en10.7126/cdj.58140.1008002163info:eu-repo/semantics/openAccessApical microleakageOval-shaped canalsProtaper universalSelf-adjusting fileArticle172109116Q4