Çeşitli Lazer Güçleri İndirekt Kompozit Rezinin Kompozit Rezin ile Tamir Bağlantı Gücünü Etkiler mi?

Abstract

Amaç: Bu çalışmanın amacı literatürde de araştırılmamış, farklı güçlerde uygulanan Er; Cr: YSGG lazerin indirekt kompozit ile kompozit rezin KR arasındaki Tamir Bağlanma Dayınımına RBS etkisini karşılaştırmaktır.Gereç ve Yöntemler: 70 adet silindirik indirekt kompozit rezin örnek hazırlandı ve rastgele 7 gruba ayrıldı n= 10 . Yüzey işlemi uygulanmamış grup kontrol grubu , Er; Cr: YSGG lazer uygulanmış gruplar 1 ile 6 W . Yüzey işlemini takiben yüzeylerine silan uygulandı. Direk kompozit silindirik plastik kalıp kullanılarak indirekt kompozit yüzeyine uygulandı ve polimerize edildi. Tamir bağlantı gücü 1 mm/dak kafa hızında geleneksel test cihazında ölçüldü ve her gruptan bir örnek taramalı elektron mikroskobunda SEM incelendi. Veriler tek yönlü ANOVA ve Tukey post-hoc testleri ile p=0,05 anlamlılık düzeyinde analiz edildi.Bulgular: Bütün yüzey işlemleri uygulanan gruplarda tamir bağlantı değerleri yüzey işlemi uygulanmayan kontrol gruba göre artış göstermesine rağmen, gruplar arasında istatistiksel olarak anlamlı farklılıklar olmadığı bulundu p>0,05 . Kırılma yüzeyleri daha çok adeziv kırılma tipi olduğu görüldü.Sonuç: Lazer uygulamasının indirekt kompozit rezinin yüzeylerini pürüzlendirmek için etkili bir yöntem olduğu görülmüştür. Bununla birlikte indirek kompozit ile direkt kompozit arasındaki yüksek tamir bağlantı gücü tek başına yüzey pürüzlülüğüyle ilişkilendirilemez

Keywords

• İndirekt kompozit, Tamir bağlantı gücü, Er, Cr:YSGG lazer

Do Various Laser Powers Affect the Repair Bond Strength of Composite Resin to Indirect Composite?

Abstract

Objective: The purpose of the present study was to compare the effect of Er;Cr:YSGG laser irradiation at different powers on repair bond strength RBS between indirect composite resin and composite resin CR , which has not been done before in literature. Material and Methods: Seventy cylindrical samples of an indirect composite resin were prepared and randomly divided into seven groups n=10 : untreated surface control group and irradiations with Er,Cr:YSGG lasers 1 to 6 W , followed by application of a silane. CR was then placed on the composite blocks using a cylindrical plastic mold and cured. The RBS tests were carried out using a universal testing machine at a cross-head speed of 1 mm/min, and one sample of each group was also observed under a scanning electronic microscope SEM . Data was analyzed with one-way ANOVA and Tukey post-hoc tests at a significance level of p = 0.05. Results: All surface treatments resulted in increased RBS compared to the untreated surface, but there were no statistical differences among the groups p>0.05 . Fractured surfaces showed mostly adhesive failures. Conclusions: Laser irradiation is an effective method for roughening surfaces of indirect composite resin. However, the high RBS observed in the indirect composite/CR interface cannot be explained by roughness alone

Keywords

• Indirect composite, Repair bond strength, Er, Cr:YSGG laser

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