Yoshida Keiichi, Yamashita Maki, Atsuta Mitsuru
Division of Fixed Prosthodontics and Oral Rehabilitation, Nagasaki University, Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki 852-8588, Japan.
Am J Dent. 2005 Oct;18(5):327-30.
To evaluate the shear bond strength of two dual-cured resin luting cements (Linkmax HV and Panavia Fluoro Cement) to machinable glass-ceramics (Decsy Machinable Ceramic) and the effect of three silane coupling agents (Clearfil Porcelain Activator, Ceramic Primer, and Porcelain Liner M) on the bond strength.
Disk-shaped specimens fabricated from machinable glass-ceramic blocks using a low-speed cutting saw were either treated or not treated with one of three silane coupling agents and then bonded together with one of two dual-cured resin luting cements. Specimens were stored in water at 37degrees C for 24 hours and/or thermal cycled 50,000 times before shear bond strength testing.
Regardless of the resin luting cement and thermal cycling, specimens treated with the Clearfil Porcelain Activator showed the highest shear bond strength among all the treatments. Surface treatment of the Clearfil Porcelain Activator showed significantly greater shear bond strength after 50,000 thermocycles compared with other treatments. However, significant differences in bond strength were observed between 0 and 50,000 thermocycles for all treatments.
评估两种双重固化树脂粘结水门汀（Linkmax HV和Panavia Fluoro Cement）与可加工玻璃陶瓷（Decsy可加工陶瓷）之间的剪切粘结强度，以及三种硅烷偶联剂（Clearfil瓷用活化剂、陶瓷底漆和瓷衬M）对粘结强度的影响。
使用低速切割锯从可加工玻璃陶瓷块制备的圆盘形试件，用三种硅烷偶联剂之一进行处理或不处理，然后用两种双重固化树脂粘结水门汀之一粘结在一起。在进行剪切粘结强度测试之前，将试件在37℃水中储存24小时和/或进行50000次热循环。
无论使用哪种树脂粘结水门汀和热循环情况，用Clearfil瓷用活化剂处理的试件在所有处理中显示出最高的剪切粘结强度。与其他处理相比，经过50000次热循环后，Clearfil瓷用活化剂的表面处理显示出显著更高的剪切粘结强度。然而，所有处理在0次和50000次热循环之间均观察到粘结强度的显著差异。
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