Akademik Veri Yönetim Sistemi
Türkiye Klinikleri Diş Hekimliği Bilimleri Dergisi, cilt.29, sa.2, ss.325-330, 2023 (Hakemli Dergi)
Objective: The aim of this study was to compare the amounts of debris extruded apically with the use of different single file systems during endodontic retreatment. Material and Methods: 36 mandibular premolar teeth were prepared with ProTaper Universal files up to F3. At every instrument change, the root canals were irrigated with 2 mL 5.25% NaOCl solution. After root canal preparation, final irrigation was performed using 5 mL 17% EDTA followed by 5 mL 5.25% NaOCl and 5 mL saline. The root canals were dried with paper point and filled with gutta percha and AH Plus sealer. The teeth were stored at 37 °C and 100% humidity for 1 week. Then the teeth were divided randomly into three groups (n=12) according to the single file system used: HyFlex EDM One File, Reciproc Blue File and One Curve. Debris extruded apically during the retreatment was collected into preweighed Eppendorf tubes. The initial weight was subtracted from final weight of the Eppendorf tubes to calculate the extruded debris for each group. Data were analyzed using one-way analysis of variance and post-hoc Tukey tests (p=0.05). Results: The Reciproc Blue extruded significantly more debris compared with HyFlex EDM and One Curve (p<0.05). When HyFlex EDM and One Curve files were compared, One Curve showed more extrusion of debris than HyFlex EDM, but this difference was not statistically significant (p>0.05). Conclusion: Under the conditions of this in vitro study, all instrumentation techniques resulted debris extrusion. The properties of the file systems may have an effect on the amount of apically extruded debris during endodontic retreatment.