Turkiye Klinikleri Journal of Dental Sciences

.: ORIGINAL RESEARCH
The Effect of Single File Systems on Apical Debris Extrusion During Retreatment: An In Vitro Study
Retreatment Sırasında Tek Eğe Sistemlerinin Apikal Debris Ekstrüzyonuna Etkisi: Bir İn Vitro Çalışma
Hüseyin GÜNDÜZa, Esin ÖZLEKa, Furkan EVRENDİLEKa, Pelinsu ŞAHİNa
aDepartment of Endodontics, Van Yüzüncü Yıl University Faculty of Dentistry, Van, Türkiye
Turkiye Klinikleri J Dental Sci. 2023;29(2):325-30
doi: 10.5336/dentalsci.2022-94461
Article Language: EN
Full Text
ABSTRACT
 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 (p0.05). 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.

Keywords: Endodontics; retreatment; root canal filling materials; root canal therapy
ÖZET
 Amaç: Bu çalışmanın amacı, tekrarlayan endodontik tedavi sırasında farklı tek eğe sistemlerinin kullanımının apikalden taşan debris miktarlarını karşılaştırmaktır. Gereç ve Yöntemler: Otuz altı adet mandibular premolar diş ProTaper Universal eğeler ile F3'e kadar genişletildi. Her eğe değişiminde kök kanalları 2 mL %5,25 NaOCl solüsyonu ile irrige edildi. Kök kanal preparasyonu sonrası 5 mL %17 EDTA ardından 5 mL %5,25 NaOCl ve 5 mL salin ile son irrigasyon yapıldı. Kök kanalları ''paper point'' ile kurutuldu ve gütaperka ve AH Plus kanal patı ile dolduruldu. Dişler 37 °C'de ve %100 nemli ortamda 1 hafta süreyle saklandı. Daha sonra dişler kullanılan tek eğe sistemine göre rastgele 3 gruba (n=12) ayrıldı: HyFlex EDM, Reciproc Blue ve One Curve. Tekrarlayan endodontik tedavi sırasında apikalden taşan debrisler, önceden ağırlıkları belirlenen Eppendorf tüplerinde toplandı. Her grup için apikalden taşan debris miktarını hesaplamak için Eppendorf tüplerinin başlangıç ağırlığı son ağırlığından çıkarıldı. Veriler, tek yönlü varyans analizi ve ''post hoc'' Tukey testleri (p=0,05) kullanılarak istatistiksel olarak analiz edildi. Bulgular: Reciproc Blue, HyFlex EDM ve One Curve ile karşılaştırıldığında önemli ölçüde (p0,05). Sonuç: Bu in vitro çalışmanın sınırlamaları dâhilinde, tüm enstrümantasyon teknikleri debris ekstrüzyonuyla sonuçlandı. Eğe sistemlerinin özellikleri, tekrarlayan endodontik tedavi sırasında apikalden taşan debris miktarı üzerinde etkili olabilir.

Anahtar Kelimeler: Endodonti; yeniden tedavi; kök kanalı dolgu materyalleri; kök kanal tedavisi
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