SURFACE MICROHARDNESS AND ROUGHNESS PROPERTIES OF BIODENTINE FOLLOWING TREATMENT WITH VARIOUS ENDODONTIC IRRIGANTS

Year 2020, Volume: 30 Issue: 2, 242 - 246, 15.04.2020

Seyda Ersahan , Ceren Yıldırım Özlem Martı Akgün , Bilal Özmen Feridun Başak Pervin Demir Süleyman Tekeli

https://doi.org/10.17567/ataunidfd.658069

Cited By: 1

Abstract

Abstract
Aim:

Endodontic irrigants may be used during a second-visit treatment or retreatment of root canals with perforations requiring repair biomaterials. After a final flushing with a chemical irrigant, some solution may remain in the root canal space, which can affect the surface of the biomaterial, altering its properties and roughness. The present study aimed to evaluate the effect of various irrigating solutions on surface microhardness and roughness of Biodentine (Septodont, Saint Maur des Fosses, France).
Materials and Methods: Fifty Biodentine specimens were prepared and randomly divided into five groups, with 10 samples in each group. The specimens were then stored in different solutions for 5 min: distilled water (control), 5.25% sodium hypochlorite (NaOCl), 17% ethylenediaminetetraacetic acid (EDTA) solution, 2% chlorhexidine (CHX), or ozonated water. Surface microhardness (Vickers hardness number [VHN]) and surface roughness were evaluated using 2-D profilometry. The data were analyzed using Kruskal–Wallis and Mann–Whitney U tests. The significance level was set at P < 0.05.
Results: The VHN of specimens exposed to NaOCl and CHX was significantly lower than the VHN of specimens exposed to distilled water and EDTA (p < 0.001, p = 0.003, p = 0.001, and p = 0.006, respectively). There was no so significant difference in the mean VHN of the EDTA-treated specimens versus that of the control samples (p = 0.999). Regarding the surface roughness of Biodentine, there were no significant differences between irrigation solutions (2 = 4.243; p = 0.374).
Conclusions: Exposure to all the irrigation solutions, except EDTA and ozonated water had an adverse effect on surface microhardness of Biodentine, whereas none of the irrigation solutions significantly changed surface roughness. Therefore, in clinical situations, such as perforation repair with Biodentine, use of EDTA and ozonated water may be preferred.

Keywords: Vickers surface microhardness, profilometry, irrigation solutions, Biodentine

Çeşitli Endodontik İrriganlarla Tedaviyi Takiben Biodentine’in Yüzey Mikrosertliği ve Pürüzlülük Özellikleri

Öz

Amaç: Biomateryallerle tamir gerektiren perforasyonlu kök kanallarının yeniden tedavisi veya ikinci-seans tedavisi esnasında endodontik irriganlar kullanılabilir. Kimyasal bir irriganla son yıkamadan sonra bir miktar solüsyon kök kanal boşluğunda kalabilir, bu da biyomateryalin sertlik ve yüzey özelliklerini değiştirebilir. Bu çalışma çeşitli irrigasyon solüsyonlarının Biodentine (Septodont, Saint Maur des Fosses, Fransa)’in yüzey mikrosertliği ve pürüzlülüğü üzerine etkisini değerlendirmeyi amaçlamaktadır.
Gereç ve Yöntemler: Elli adet Biodentine örneği hazırlandı ve rastgele olarak her grup 10 örnek içerecek şekilde beş gruba ayrıldı. Sonrasında örnekler farklı solüsyonlarda 5 dakika bekletildi: distile su(kontrol), %5.25 sodyum hipoklorit (NaOCl), %17 etilendiamintetraasetik asit (EDTA) solution, %2 klorheksidin (CHX), veya ozonlu su. Yüzey mikrosertliği (Vickers sertlik değeri [VHN]) ve yüzey pürüzlülüğü 2-D profilometre kullanılarak değerlendirildi. Veriler Kruskal–Wallis ve Mann–Whitney U testleri kullanılarak değerlendirildi. İstatistiksel anlamlılık seviyesi P < 0.05 olarak belirlendi.
Bulgular: NaOCl ve CHX’de bekletilen örneklerin VHN değerleri distile su ve EDTA’da bekletilenlere gore anlamlı derecede düşüktür (p < 0.001, p = 0.003, p = 0.001, ve p = 0.006, sırasıyla). EDTA-uygulanmış örneklerin ortalama VHN değeriyle kontrol örneklerininki arasında anlamlı fark bulunmamaktadır (p = 0.999). Biodentine’in yüzey pürüzlülüğüne ilişkin ise irrigasyon solüsyonları arasında anlamlı fark bulunmamaktadır (2 = 4.243; p = 0.374).
Sonuçlar: EDTA ve ozonlu su haricindeki tüm irrigasyon solüsyonlarına maruz kalmanın Biodentine’in yüzey sertliği üzerine olumsuz etkisi bulunsa da, diğer taraftan irrigasyon solüsyonlarının hiçbiri yüzey pürüzlülüğünü anlamlı derecede değiştirmemiştir. Bundan dolayı, Biodentine ile perforasyon tamiri gibi klinik durumlarda, EDTA ve ozonlu su kullanımı tercih edilebilir.
Anahtar kelimeler: Vickers yüzey mikrosertliği. profilometre, irrigasyon solüsyonları, Biodentine

Keywords

Vickers surface microhardness, profilometry, irrigation solutions

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