Ataol Ayse Seda, Ergun Gulfem
Department of Prosthodontics, Faculty of Dentistry, Mersin University.
Department of Prosthodontics, Faculty of Dentistry, Gazi University.
J Oral Sci. 2018;60(2):201-211. doi: 10.2334/josnusd.17-0109.
We evaluated the effects of three different surface treatments and two different bonding procedures on shear bond strength of resin composites to different computer-aided design/manufacturing (CAD/CAM) ceramics with or without thermocycling. The test specimens were prepared from three different CAD/CAM ceramics (Group A, IPS e.max CAD; Group B, IPS e.max ZirCAD; Group C, Vita Suprinity). They were divided into eight subgroups according to the surface treatment and bonding procedures. After resin composite was applied to the surfaces of all test specimens, they were stored in distilled water for 24 h at 37C. Next, half of the test specimens were subjected to a thermocycling procedure, and the other half were stored in distilled water at 37°C throughout thermocycling. The shear bond strength was performed using a universal testing machine. Statistical analysis revealed that the ceramic types (P > 0.0031) and thermocycling (P > 0.0021) did not, but the surface treatment technique did significantly affect the shear bond strength values (P < 0.05; except group C). Higher bond strength values were observed with HF etching in Groups A and C compared with the other tested surface treatments.
我们评估了三种不同的表面处理和两种不同的粘结程序对树脂复合材料与不同计算机辅助设计/制造（CAD/CAM）陶瓷之间剪切粘结强度的影响，这些陶瓷经过或未经过热循环处理。测试样本由三种不同的CAD/CAM陶瓷制备而成（A组，IPS e.max CAD；B组，IPS e.max ZirCAD；C组，Vita Suprinity）。根据表面处理和粘结程序，它们被分为八个亚组。在所有测试样本表面涂抹树脂复合材料后，将它们在37℃的蒸馏水中储存24小时。接下来，一半的测试样本进行热循环处理，另一半在整个热循环过程中一直储存在37℃的蒸馏水中。使用万能试验机进行剪切粘结强度测试。统计分析表明，陶瓷类型（P>0.0031）和热循环（P>0.0021）对剪切粘结强度值没有显著影响，但表面处理技术对其有显著影响（P<0.05；C组除外）。与其他测试的表面处理相比，A组和C组中氢氟酸蚀刻的粘结强度值更高。
