Turkiye Klinikleri Journal of Dental Sciences

.: ORIGINAL RESEARCH
Effect of Surface Roughning Methods on Bond Strength of Various Composite Resins to Porcelain: An In Vitro Study
Çeşitli Kompozit Rezinlere Uygulanan Farklı Yüzey Pürüzlendirme Yöntemlerinin Porselen Bağlanma Dayanımına Etkisi: İn Vitro Çalışma
İrem KARAGÖZOĞLUa, Leyla AKSELa
aDepartment of Prosthodontics, Gaziantep University Faculty of Dentistry, Gaziantep, Türkiye
Turkiye Klinikleri J Dental Sci. 2023;29(1):159-65
doi: 10.5336/dentalsci.2022-93040
Article Language: EN
Full Text
ABSTRACT
 Objective: This study compares different surface conditioning methods applied to various composite surfaces in order to investigate the possible effects on composite-ceramic bond strength. It was aimed to increase the bond strength between flowable composite which is frequently used in the immediate dentin sealing procedure and ceramic surfaces. Material and Methods: Eighty flowable composite and eighty conventional composite discs were prepared with five different surface conditioning methods applied to the discs. The folllowing treatments were applied to the discs: orthophosphoric acid, air-flow, bur conditioning, Er:YAG laser irradition and an unconditioned control group. The composite disc surface roughness was measured with a profilometer. Composite and ceramic (Glass-ceramic blocks, e.max CAD, Ivoclar Vivadent AG, Liechtenstein) discs were then bonded with an adhesive resin cement. The shear bonding test was performed with an universal tester. Results: There was no statistical difference between the conditioning methods applied to flowable composites in terms of bond strength (p>0.05). However, a statistically significant difference was found between the conditioning methods applied to conventional composites regarding bond strength (p<0.05). The highest mean bond strength value was observed with ER:YAG laser conditioned conventional composites and was significantly higher than laser irradiated flowable composite groups. Conclusion: Our data shows that similar bond strength values are obtained when using either flowable or conventional composite resins. In addition, both conventional and flowable composite resins require surface conditioning to achieve reliable adhesion to porcelain material.

Keywords: Conditioning methods; bond strength; composite resin
ÖZET
 Amaç: Bu çalışmanın amacı, çeşitli kompozit yüzeylere uygulanan yüzey pürüzlendirme yöntemlerinin, kompozit-seramik arasındaki bağlanma dayanımına etkisini araştırmaktır. Genellikle immediyat dentin kapama işleminde uygulanan akışkan kompozit ile seramik yüzeyler arasındaki bağlanma dayanımının arttırılması amaçlanmıştır. Gereç ve Yöntemler: Seksen adet akışkan kompozit, 80 adet konvansiyonel kompozit örnek hazırlanmıştır. Kompozit yüzeylere 5 farklı pürüzlendirme yapılmıştır. Uygulanan pürüzlendirme yöntemleri; Ortofosforik asit uygulaması, ağız içi kumlama, frez ile pürüzlendirme, Er:YAG lazer ile pürüzlendirme ve kontrol grubu şeklindedir. Kompozit örneklerin yüzey pürüzlülüğü profilometre ile ölçülmüştür. Kompozit ve seramik (Cam-seramik bloklar, e.max CAD, Ivoclar Vivadent AG, Liechtenstein) örnekler adeziv rezin siman ile yapıştırılmış ve üniversal test cihazı ile makaslama bağlanma dayanımı testi uygulanmıştır. Bulgular: Akışkan kompozitlere uygulanan pürüzlendirme yöntemleri arasında bağlanma dayanımı açısından istatistiksel olarak fark bulunmamıştır (p>0,05). Ancak geleneksel kompozitlere uygulanan pürüzlendirme yöntemleri arasında bağlanma dayanımı açısından istatistiksel olarak anlamlı bir fark bulunmuştur (p<0,05). En yüksek ortalama bağlanma dayanımı değeri, Er:YAG lazerle pürüzlendirilmiş konvansiyonel kompozitlerde gözlenmiştir ve lazerle pürüzlendirilmiş akışkan kompozit grubundan daha yüksektir. Sonuç: Akışkan ve geleneksel kompozit rezinlerin porselen ile bağlantısında benzer sonuçlar elde edilmiştir. Hem geleneksel hem de akışkan kompozit rezinlerin porselen ile güvenilir bir şekilde bağlanması için yüzey pürüzlendirme işlemi gereklidir.

Anahtar Kelimeler: Yüzey pürüzlendirme; bağlanma dayanımı; kompozit rezin
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