Kitayama Shuzo, Nikaido Toru, Maruoka Rena, Zhu Lei, Ikeda Masaomi, Watanabe Akihiko, Foxton Richard M, Miura Hiroyuki, Tagami Junji
Cariology and Operative Dentistry, Department of Restorative Science, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
Dent Mater J. 2009 Jul;28(4):446-53. doi: 10.4012/dmj.28.446.
This study was conducted to enhance the tensile bond strengths of resin cements to zirconia ceramics. Fifty-six zirconia ceramic specimens (Cercon Base) and twenty-eight silica-based ceramic specimens (GN-1, GN-1 Ceramic Block) were air-abraded using alumina. Thereafter, the zirconia ceramic specimens were divided into two subgroups of 28 each according to the surface pretreatment; no pretreatment (Zr); and the internal coating technique (INT). For INT, the surface of zirconia was coated by fusing silica-based ceramics (Cercon Ceram Kiss). Ceramic surfaces were conditioned with/without a silane coupling agent followed by bonding with one of two resin cements; Panavia F 2.0 (PF) and Superbond C&B (SB). After 24 hours storage in water, the tensile bond strengths were tested (n=7). For both PF and SB, silanization significantly improved the bond strength to GN-1 and INT (p<0.05). The INT coating followed by silanizaton demonstrated enhancement of bonding to zirconia ceramics.
本研究旨在提高树脂水门汀与氧化锆陶瓷之间的拉伸粘结强度。使用氧化铝对56个氧化锆陶瓷试件（Cercon Base）和28个硅基陶瓷试件（GN-1、GN-1陶瓷块）进行空气喷砂处理。此后，根据表面预处理方法，将氧化锆陶瓷试件分为两个亚组，每组28个；未进行预处理（Zr）；以及采用内涂层技术（INT）。对于INT，通过熔融硅基陶瓷（Cercon Ceram Kiss）对氧化锆表面进行涂层处理。陶瓷表面使用/不使用硅烷偶联剂进行预处理，然后使用两种树脂水门汀之一进行粘结；Panavia F 2.0（PF）和Superbond C&B（SB）。在水中储存24小时后，测试拉伸粘结强度（n = 7）。对于PF和SB，硅烷化处理均显著提高了与GN-1和INT的粘结强度（p < 0.05）。先进行INT涂层处理再进行硅烷化处理，可增强与氧化锆陶瓷的粘结。
