Lv Pin, Yang Xin, Jiang Ting
Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China.
Materials (Basel). 2015 Nov 30;8(12):8087-8096. doi: 10.3390/ma8125409.
This study was designed to evaluate the effect of hot-etching surface treatment on the shear bond strength between zirconia ceramics and two commercial resin cements. Ceramic cylinders (120 units; length: 2.5 mm; diameter: 4.7 mm) were randomly divided into 12 groups ( = 10) according to different surface treatments (blank control; airborne-particle-abrasion; hot-etching) and different resin cements (Panavia F2.0; Superbond C and B) and whether or not a thermal cycling fatigue test (5°-55° for 5000 cycles) was performed. Flat enamel surfaces, mounted in acrylic resin, were bonded to the zirconia discs (diameter: 4.7 mm). All specimens were subjected to shear bond strength testing using a universal testing machine with a crosshead speed of 1 mm/min. All data were statistically analyzed using one-way analysis of variance and multiple-comparison least significant difference tests (α = 0.05). Hot-etching treatment produced higher bond strengths than the other treatment with both resin cements. The shear bond strength of all groups significantly decreased after the thermal cycling test; except for the hot-etching group that was cemented with Panavia F2.0 ( < 0.05). Surface treatment of zirconia with hot-etching solution enhanced the surface roughness and bond strength between the zirconia and the resin cement.
本研究旨在评估热蚀刻表面处理对氧化锆陶瓷与两种市售树脂水门汀之间剪切粘结强度的影响。将陶瓷圆柱体（120个；长度：2.5毫米；直径：4.7毫米）根据不同的表面处理（空白对照；空气颗粒研磨；热蚀刻）、不同的树脂水门汀（Panavia F2.0；Superbond C和B）以及是否进行热循环疲劳试验（5°-55°，5000次循环）随机分为12组（每组n = 10）。安装在丙烯酸树脂中的平坦釉质表面与氧化锆圆盘（直径：4.7毫米）粘结。所有标本使用十字头速度为1毫米/分钟的万能试验机进行剪切粘结强度测试。所有数据采用单因素方差分析和多重比较最小显著差异检验进行统计学分析（α = 0.05）。热蚀刻处理与两种树脂水门汀结合时产生的粘结强度均高于其他处理。热循环试验后，所有组的剪切粘结强度均显著降低；用Panavia F2.0粘结的热蚀刻组除外（P < 0.05）。用热蚀刻溶液对氧化锆进行表面处理可提高氧化锆与树脂水门汀之间的表面粗糙度和粘结强度。
