Tam seramik materyalleri ile rezin simanlar arasındaki bağlanma dayanımının incelenmesi
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2006
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Selçuk Üniversitesi Sağlık Bilimleri Enstitüsü
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info:eu-repo/semantics/openAccess
Abstract
Farklı yapıdaki seramiklere farklı siman sistemlerinin seramik-siman bağlantısı ve bu bağlantıya termal siklusun etkisini incelemek amacı ile yapılan bu çalışmada 2 farklı seramik (Empress 2 ve ProCAD) ve 4 farklı siman sistemi (Variolink II, Rely X ARC, Panavia F ve GC Fuji Plus) kullanıldı. Her seramikten 16'ar tane olmak üzere toplam 32 tane seramik bloğu hazırlandı. Seramik örnekleriyle aynı boyutta hazırlanan rezin siman blokları kumlama+ asitleme yapılmış seramik bloklara bağlandı. Her seramik-siman grubunun yarısı 37ºC'deki distile suda 24 saat bekletildi. Diğer yarısına ise, 5-55ºC (±2ºC)'de 2000 termal siklus uygulandı. Seramik-siman bloklardan kesit alınarak elde edilen 256 mikrobara (her grup için 16 tane) microtensile testi uygulandı. Microtensile testinde elde edilen verilere önce çok yönlü varyans analizi daha sonra ?Tukey HSD testi? ve ?Duncan? istatistiksel analizleri uygulandı. Her bir seramiğe ait her 109 bir siman için termal siklussuz ve termal sikluslu grupların bağlanma dayanımlarının karşılaştırılması Bağımsız T testi ile yapıldı. Kopan yüzeylerin başarısızlık tiplerini belirlemek için tüm örnekler stereomikroskop ve SEM'de incelendi. Çalışmanın sonucunda; Empress 2 seramiği, ProCAD seramiğinden daha fazla bağlanma dayanımı göstermiştir. Empress 2 seramiğe termal siklus öncesi en düşük bağlanma dayanımı GC Fuji Plus ile gözlenmiştir. Empress 2 seramiğine bağlanan Variolink II yapıştırıcı simanın termal siklussuz ve termal sikluslu grupları arasındaki fark istatistiksel olarak anlamlı bulunurken, diğer 3 siman için anlamsız bulunmuştur. ProCAD seramiğe termal siklus öncesi en yüksek bağlanma dayanımı Panavia F ile, en düşük bağlanma dayanımı ise GC Fuji Plus ile elde edilmiştir. ProCAD seramiğine bağlanan Panavia F yapıştırıcı simanın termal siklussuz ve termal sikluslu grupları arasındaki fark istatistiksel olarak anlamlı bulunurken, diğer 3 siman için anlamsız bulunmuştur. Her iki seramik için örneklerin kopmuş yüzeylerinin stereomikroskop ve SEM incelemelerinde; Variolink II, Rely X ARC ve Panavia F gruplarda adeziv+koheziv başarısızlık, GC Fuji Plus'da ise adeziv başarısızlık daha fazla görülmüştür. Sonuç olarak bu çalışmanın sınırları içinde Rely X ARC ve Panavia F siman sistemlerinin IPS Empress 2 seramiği ile Variolink II ve Rely X ARC siman sistemlerinin ise ProCAD seramiği ile klinikte kullanımı tavsiye edilebilir.
In this study, two different ceramic materials (IPS Empress 2 and ProCAD) and four different cement systems (Variolink II, Rely X ARC, Panavia F and GC Fuji Plus) were used to evaluate the bond strengths of different luting cement systems to different types ceramic materials and the effect of thermal cycling on the bond strength. A total of 36 ceramic blocks, 16 per each type of ceramic material, were obtained for the study. The surfaces of all ceramic blocks were treated using the methods of airborne- particle abrasion and HF-etching. The blocks were then bonded to resin cement blocks of identical dimensions as the ceramic bloks. Half of the each ceramic-cement groups were stored in distilled water at 37ºC for 24 hour. The other half were subjected to thermal cycling at 2000 cycles between 5ºC and 55ºC. 256 microbars (16 per group) were obtained by cutting the ceramic-cement blocks, and these microbars were then subjected to microtensile test. The microtensile test values were subjected to a univariate analysis of variance. Further Tukey HSD and Duncan analyses were carried out. The Independent Samples test was utilized to statistically determine the bonding strength of all possible combinations of ceramic materials and luting cements, both with and without thermal cycling. The fractured specimens were examined with a stereomicroscope and scanning electron microscopy to determine the type of failure. 111 IPS Empress 2 ceramic material demonstrated higher bond strength than ProCAD ceramic material in this study. The lowest bond strength was obtained with GC Fuji Plus to IPS Empress 2 ceramic before thermal cycling test. While statistically significant differences were found between the bond strength values of Variolink II luting cement to IPS Empress 2 ceramic with thermal cycling and values without thermal cycling, no statistically significant differences due to thermal cycling were found for other three cements. Prior to the thermal cycling test, the highest bond strength was obtained with Panavia F to ProCAD ceramic; and the lowest bond strength was obtained with GC Fuji Plus to ProCAD ceramic. While statistically significant differences were found between the bond strength values of Panavia F luting cement to ProCAD ceramic with thermal cycling and values without thermal cycling, no statistically significant differences were found between them for other three cements. During the stereomicroscopy and SEM analysis of the fracture surfaces of all samples, adhesive & cohesive failure was observed in the cases of Variolink II, Rely X ARC and Panavia F groups while the analysis of groups with GC Fuji Plus showed predominantly adhesive failure. In conclusion, the clinical use of Rely X ARC and Panavia F cement systems with Empress 2 ceramic, Variolink II and Rely X ARC cement systems with ProCAD ceramic are recommended based on the results obtained in this study.
In this study, two different ceramic materials (IPS Empress 2 and ProCAD) and four different cement systems (Variolink II, Rely X ARC, Panavia F and GC Fuji Plus) were used to evaluate the bond strengths of different luting cement systems to different types ceramic materials and the effect of thermal cycling on the bond strength. A total of 36 ceramic blocks, 16 per each type of ceramic material, were obtained for the study. The surfaces of all ceramic blocks were treated using the methods of airborne- particle abrasion and HF-etching. The blocks were then bonded to resin cement blocks of identical dimensions as the ceramic bloks. Half of the each ceramic-cement groups were stored in distilled water at 37ºC for 24 hour. The other half were subjected to thermal cycling at 2000 cycles between 5ºC and 55ºC. 256 microbars (16 per group) were obtained by cutting the ceramic-cement blocks, and these microbars were then subjected to microtensile test. The microtensile test values were subjected to a univariate analysis of variance. Further Tukey HSD and Duncan analyses were carried out. The Independent Samples test was utilized to statistically determine the bonding strength of all possible combinations of ceramic materials and luting cements, both with and without thermal cycling. The fractured specimens were examined with a stereomicroscope and scanning electron microscopy to determine the type of failure. 111 IPS Empress 2 ceramic material demonstrated higher bond strength than ProCAD ceramic material in this study. The lowest bond strength was obtained with GC Fuji Plus to IPS Empress 2 ceramic before thermal cycling test. While statistically significant differences were found between the bond strength values of Variolink II luting cement to IPS Empress 2 ceramic with thermal cycling and values without thermal cycling, no statistically significant differences due to thermal cycling were found for other three cements. Prior to the thermal cycling test, the highest bond strength was obtained with Panavia F to ProCAD ceramic; and the lowest bond strength was obtained with GC Fuji Plus to ProCAD ceramic. While statistically significant differences were found between the bond strength values of Panavia F luting cement to ProCAD ceramic with thermal cycling and values without thermal cycling, no statistically significant differences were found between them for other three cements. During the stereomicroscopy and SEM analysis of the fracture surfaces of all samples, adhesive & cohesive failure was observed in the cases of Variolink II, Rely X ARC and Panavia F groups while the analysis of groups with GC Fuji Plus showed predominantly adhesive failure. In conclusion, the clinical use of Rely X ARC and Panavia F cement systems with Empress 2 ceramic, Variolink II and Rely X ARC cement systems with ProCAD ceramic are recommended based on the results obtained in this study.
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Tam seramik materyaller, All ceramic materials, Rezin siman, Resin cements
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Gür, E. (2006). Tam seramik materyalleri ile rezin simanlar arasındaki bağlanma dayanımının incelenmesi. Selçuk Üniversitesi, Yayımlanmış doktora tezi, Konya.
