PDF(Pubmed)
Abstract：
Adhesion of zirconia is difficult; thus, etching agents using several different methods are being developed. We investigated the effects of surface treatment with commercially available etching agents on the bond strength between zirconia and resin cement and compared them with those achieved using air abrasion alone. We used 100 zirconia blocks, of which 20 blocks remained untreated, 20 blocks were sandblasted, and 60 blocks were acid-etched using three different zirconia-etching systems: Zircos-E etching (strong-acid etching), smart etching (acid etching after air abrasion), and cloud etching (acid etching under a hot stream). Each group was subjected to a bonding procedure with dual-polymerized resin cement, and then 50 specimens were thermocycled. The shear bond strengths between the resin cement and zirconia before and after the thermocycling were evaluated. We observed that in the groups that did not undergo thermocycling, specimens surface-treated with solution did not show a significant increase in shear bond strength compared to the sandblasted specimens (p > 0.05). Among the thermocycled groups, the smart-etched specimens showed the highest shear bond strength. In the short term, various etching agents did not show a significant increase in bond strength compared to sandblasting alone, but in the long term, smart etching showed stability in bond strength (p < 0.05).
摘要：
氧化锆的粘附是困难的；因此，正在开发使用几种不同方法的蚀刻剂。我们研究了用市售蚀刻剂进行表面处理对氧化锆与树脂水泥之间粘结强度的影响，并将其与仅使用空气磨蚀获得的效果进行了比较。我们用了100个氧化锆块,其中20块未经处理，20块被喷砂处理,和60块使用三种不同的氧化锆蚀刻系统进行酸蚀刻：Zircos-E蚀刻（强酸蚀刻），智能蚀刻（空气磨损后的酸蚀刻），和云蚀刻(在热流下的酸蚀刻)。每组都用双重聚合树脂水泥进行粘合程序，然后对50个样本进行热循环。评估了热循环前后树脂水泥与氧化锆之间的剪切粘结强度。我们观察到，在没有进行热循环的组中，与喷砂试样相比，用溶液表面处理的试样的剪切粘结强度没有显着增加（p>0.05）。在热循环的群体中，智能蚀刻试样显示出最高的剪切粘结强度。在短期内,与单独喷砂相比，各种蚀刻剂的粘结强度没有显着增加，但从长远来看,智能蚀刻显示粘结强度稳定(p<0.05)。
