Kamada Kohji, Yoshida Keiichi, Taira Yohsuke, Sawase Takashi, Atsuta Mitsuru
Division of Fixed Prosthodontics and Oral Rehabilitation, Nagasaki University Graduate School of Biomedical Sciences, Japan.
Dent Mater J. 2006 Sep;25(3):621-5. doi: 10.4012/dmj.25.621.
The purpose of this study was to evaluate the bond strength between four bonding systems (GC Ceramic Primer and Linkmax HV (CP+LM), Clapearl Bonding Agent and Clapearl DC (CBA+CL), Clearfil Mega Bond Porcelain Bonding kit and Panavia F2.0 (MB+PF), and RelyX Ceramic Primer and RelyX ARC (RC+RA)) and two machinable ceramics (Vitablocs Mark II, VMII and GN-I ceramic block, GNI). Shear bond strength was determined after 24-hour immersion in water or after thermocycling of 20,000 cycles. It was found that the post-thermocycling bond strength of each bonding system to VMII was significantly higher than that to GNI. VMII showed no significant differences between CP+LM, MB+PF, and CBA+CL--the values of which were higher than that of RC+RA. Regarding GNI, CP+LM showed the greatest bond strength after thermocycling among the four bonding systems used. It was concluded that the crystalline phase of the ceramics used might have an effect on bond strength.
本研究的目的是评估四种粘结系统（GC陶瓷底涂剂和Linkmax HV（CP + LM）、Clapearl粘结剂和Clapearl DC（CBA + CL）、Clearfil Mega Bond瓷粘结套装和Panavia F2.0（MB + PF）以及RelyX陶瓷底涂剂和RelyX ARC（RC + RA））与两种可加工陶瓷（维他灵二代，VMII和GN - I陶瓷块，GNI）之间的粘结强度。在水中浸泡24小时或经过20000次热循环后测定剪切粘结强度。结果发现，各粘结系统与VMII热循环后的粘结强度显著高于与GNI的粘结强度。VMII在CP + LM、MB + PF和CBA + CL之间无显著差异，其数值高于RC + RA。对于GNI，在使用的四种粘结系统中，CP + LM在热循环后显示出最大的粘结强度。得出的结论是，所用陶瓷的晶相可能对粘结强度有影响。
