Effect of zirconia surface modification using dopamine polymerisation on the shear bond strength of resin cement.
Effect of zirconia surface modification using dopamine polymerisation on the shear bond strength of resin cement.
复制标题
DOI：
10.1111/eos.12797
复制
发表时间：
2021-05
影响因子：
1.9
通讯作者：
Yi Yu;M. Cui;Tingting Lin;Chuantong Liu;Xiaoting Jin;Huanhuan Chen;Ruibin Zheng;Sheng-Bing Huang-Sheng-Bi
中科院分区：
文献类型：
--
作者：
Yi Yu;M. Cui;Tingting Lin;Chuantong Liu;Xiaoting Jin;Huanhuan Chen;Ruibin Zheng;Sheng-Bing Huang-Sheng-Bi
本研究评估了聚多巴胺处理对钇稳定四边形氧化锆多晶（Y-TZP）表面性质和结合强度的影响。将63块10 × 10 × 2 mm的氧化锆块按表面处理方式随机分为3组：(i)对照组(C), (ii) 110 μm氧化铝颗粒（GB）喷砂组，（iii）聚多巴胺（PDA）涂层组。采用x射线光电子能谱（XPS）、扫描电子显微镜（SEM）和水接触角测量对不同处理的试样表面进行了研究。表面处理后，将试件粘接到树脂复合圆柱体上。结合后，测量了陶瓷与树脂的剪切结合强度，并用体视显微镜分析了每个试样的破坏模式。结果表明，GB处理的剪切强度最高，而对照组的剪切强度最低。而GB组与PDA组间差异无统计学意义。对照组以粘接失败为主，治疗组以混合模式失败为主。采用聚多巴胺涂层对Y-TZP陶瓷进行预处理，可以提高树脂水泥与氧化锆陶瓷的结合强度。
This study evaluated the influence of polydopamine treatment on the surface properties and bond strength of yttria-stabilised tetragonal zirconia polycrystal (Y-TZP). Sixty-three zirconia blocks (10 × 10 × 2 mm) were randomly divided into three groups defined by surface treatment: (i) control group (C), (ii) grit-blasted with 110 μm alumina particles (GB), and (iii) polydopamine (PDA) coating. The surfaces of specimens subjected to different treatments were investigated by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and water contact angle measurements. After the surface treatments, the specimens were cemented to resin composite cylinders. After bonding, the shear bond strength of the ceramic to the resin was measured, and the failure mode of each specimen was analysed using a stereomicroscope. The results indicated that the shear bond strength is highest for the GB treatment and lowest for the controls. However, the difference between groups GB and PDA was not statistically significant. In the control group, adhesive failure was predominant, whereas in the treatment groups, mixed mode failure was predominant. The pre-treatment of Y-TZP ceramic with the polydopamine coating might improve the bond strength of the resin cement to the zirconia ceramic.