Öznur GÜÇLÜER, Hakan AYDIN, Dilara ARSLAN, Seyit Bilal ÖZDEMİR

Epoksi Rezin İçerikli Bir Patın NaOCl ile Tedavi Edilmiş Kök Kanallarına Adezyonunda Antioksidan Ajanların Etkisi

Amaç: Endodontide geleneksel irrigasyon solüsyonu olarak sodyum hipoklorit NaOCl kullanımı rezin içerikli materyallerin dentine adeziv bağlanmasını zayıflatabilmektedir fakat; bu olumsuz etki antioksidan ajanlarla geriye döndürülebilmektedir. Çalışmada; NaOCl ile tedavi edilmiş dentine rezin esaslı bir kök kanal patının bağlanma dayanımını artırmada antioksidan ajanların etkisi değerlendirilmiştir. Gereç ve Yöntemler: 38 adet alt mandibular premolar diş kök kanalı distile su irrigasyonu altında resiprokal sistem kullanılarak şekillendirilmiştir. Şekillendirme sonrası kök kanalları 4 gruba ayrılmış n=8 ve takip eden irrigasyon rejimleri uygulanmıştır: 1 %5 sodyum hipoklorit NaOCl 10 dk/ %17 etilen diamin tetraasetik asit EDTA 1 dk; 2 %5 NaOCl / %30 üzüm çekirdeği özütü GSE / %17 EDTA; 3 %5 NaOCl / %10 askorbik asit AA / %17 EDTA; 4 distile su 10 dk kontrol grubu . İrrigasyon prosedürleri tamamlandıktan sonra kanallar kanal patı ve güta perka ile dolduruldu. Örnekler; 7 gün boyunca 37 °C’de bir inkübatörde bekletildikten sonra bağlanma dayanımı testi uygulandı. Kalan 6 dişe solüsyonların grup ve tek irrigasyon protokolleri uygulandı ve SEM görüntüleri elde edildi. Bulgular: Üçlü bölgelerine göre bağlanma dayanımı değerlendirildiğinde; Grup 2 ile diğer gruplar arasında anlamlı istatistiksel farklılık gözlendi. Grup 2 her üçlü bölgesinde de en yüksek bağlanma dayanımı değerlerini gösterdi. Sonuç: Çalışmanın limitasyonları dahilinde; %30 GSE NaOCl’nin olumsuz etkilerini ortadan kaldırmak için kanal içi final irrigasyonda alternatif bir antioksidan olarak kullanılabilir

Anahtar Kelimeler:

Antioksidan ajanlar, Rezin siman, Askorbik asit

The Effect of Antioxidant Agents on Adhesion of an Epoxy Resin Based Sealer to NaOCl-Treated Root Dentin

Objective: The use of sodium hypochlorite NaOCl as a traditional endodontic irrigant lowers the bond strength of resin based materials to dentine but this can be reversed by the use of antioxidant agents. The aim of this study was to evaluate the effect of antioxidant agents in improving the bond strength of a resin based sealer to NaOCl-treated root dentin.Material and Methods: Thirty eight mandibular premolar root canals were shaped using reciprocating fıles with distilled water and four groups n=8 were conditioned with one of the following irrigation regimens: 1 5% sodium hypochlorite NaOCl for 10 minutes and then 17% EDTA for 1 min; 2 5% NaOCl for 10 minutes followed by 30% grape seed extract GSE for 10 minutes and then 17% EDTA for 1 min; 3 5% NaOCl for 10 minutes followed by 10% ascorbic acid for 10 minutes and 17% EDTA for 1 minute; 4 distilled water for 10 minutes control . After the irrigation procedures, all roots were filled with sealer and gutta percha. Samples were placed in an incubator at 37 °C for 7 days and then the push-out bond strength test was performed. Group and single irrigation protocols of the solutions were applied to the remaining 6 teeth and SEM images were obtained.Results: There were statistically significant differences between the values for the root thirds in Group 2 and the other groups. Group 2 achieved the highest bond strength among all groups in each root third. Conclusion: 30% grape seed extract can be an alternative antioxidant agent for the final irrigation protocol to reverse the negative effect of NaOCl

Keywords:

Antioxidant agents, Resin cement, Ascorbic acid,

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