Amaç: Çalışmanın amacı, hibrid seramiğe, farklı yüzey hazırlıkları ve üniversal adezivler uygulanmasının ardından, kompozit rezin ile makaslama bağlantı dayanımını değerlendirmektir. Gereç ve Yöntemler: Hibrid seramik bloklardan (VITA ENAMIC®, Zahnfabrik, Bad Säckingen, Almanya) 40 adet 6 mm kenar uzunluğunda kare dik prizma şeklinde parçalar, hassas kesme cihazında su soğutması altında hazırlandı. Bu parçalar, akrilik kalıplara yerleştirildi ve üst yüzeyleri parlatıldı. Hazırlanan örnekler, önce 2 yüzey işlemi grubuna, daha sonra da 2 ayrı adeziv sisteme [Single Bond Universal (SBU), 3M' ESPE', ABD ve Tokuyama Universal Bond (TUB), Tokuyama Dental Corporation Inc., Japonya] göre alt gruplara rastgele dağıtıldı (n=10). Örneklerin yüzeyleri, air abrazyon ve lazer uygulanarak pürüzlendirildi. İki ayrı üniversal adeziv, üretici önerileri doğrultusunda uygulandı. Silindir şeklinde kalıplar kullanılarak, 4 mm çapında ve 4 mm yüksekliğinde kompozit (Filtek' Z250, 3M' ESPE', ABD) uygulandı. Örneklere, termal döngü ile yaşlandırma yapıldı. Makaslama bağlanma dayanımı, üniversal test cihazı ile değerlendirildi. İki yönlü varyans analizi (ANOVA) ile verilerin istatistiksel analizi yapıldı, gruplar arası karşılaştırmalar için Tukey HSD testi kullanıldı (p0,05). Sonuç: Işık uygulamasına gerek duymadan polimerize olan TUB, hızlı bir uygulamaya imkân sağlamaktadır. Lazer ile yüzey hazırlığı yapılmış, hibrid seramiklerle SBU ile TUB benzer makaslama bağlanma dayanımı gösterirken, air abrazyon ile yüzey hazırlığı yapılmış hibrid seramiklerle TUB, SBU'dan daha yüksek makaslama bağlanma dayanımı göstermiştir.
Anahtar Kelimeler: Hibrid seramik; kompozit rezin; lazer; air abrazyon; bağlanma dayanımı; üniversal adeziv
Objective: The aim of this study was to evaluate the shear bond strength of a hybrid ceramic material a composite resin after different surface preparations and universal adhesives. Material and Methods: Forty specimens square prism in shape with 6 mm edge length were prepared from a hybrid ceramic block (VITA ENAMIC®, Zahnfabrik, Bad Säckingen, and Germany) with a cutting machine under water cooling. Specimens were placed in acrylic molds and upper surfaces were polished. Then they were randomly divided into two surface treatments main groups and two adhesive systems [Single Bond Universal (SBU), 3M' ESPE', USA and Tokuyama Universal Bond (TUB), Tokuyama Dental Corporation Inc., Japan] subgroups (n=10). Surface treatments were performed with laser and air abrasion devices, then universal adhesives were applied according to manufacturer instructions. Composite resin (Filtek' Z250, 3M' ESPE', USA) was placed on to the hybrid ceramics with cylindrical molds in 4mm height and diameter. Specimens were submitted to thermal aging. The shear bond strength (SBS) test was performed using universal testing machine. Data were statistically analyzed with two-way analysis of variance (ANOVA) and Tukey HSD test was used for pairwise comparisons (p0.05). Conclusion: Since TUB can polymerize without the light application, it allows quick application. SBU and TUB showed similar shear bond strength to laser surface treatment applied hybrid ceramics while TUB showed higher shear bond strength to air abraded hybrid ceramics.
Keywords: Hybrid ceramic; composite resin; laser; air abrasion; shear bond strength; universal adhesive
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