Barragan Goncalo, Chasqueira Filipa, Arantes-Oliveira Sofia, Portugal Jaime
Department of Biomaterials, Faculty of Dental Medicine, University of Lisbon, Cidade Universitária, 1649-003 Lisbon, Portugal, Tel: +351 967 020 534; e-mail:
Oral Health Dent Manag. 2014 Jun;13(2):155-8.
To evaluate the influence of mechanical surface treatment and chemical primer application on the composite shear bond strength to zirconia.
Eighty blocks of Lava Frame Zirconia were randomly assigned to the experimental groups, according to the several possible combinations between mechanical (untreated/aluminum oxide sandblast) and chemical treatment (no primer/Monobond Plus/Experimental Zirkon-Primer/Z-Prime Plus) (n=10). Adhesive system and composite resin were then applied, and samples were thermal cycled (5°C-55°C, 500 cycles). Shear bond strength tests and failure mode analysis were performed. SBS data were analyzed by two-way ANOVA, followed by Student-Newman-Keuls post-hoc tests, and failure mode by Kruskal-Wallis and Mann-Whitney tests (p<0.05).
Shear bond strength mean values ranged from 6.9 to 23.2 MPa. Surface treatment with aluminum oxide sandblasting allowed a statistically significant increase (p<0.05) in bond strength values. The group treated with Z-Prime Plus achieved (p<0.05) higher bond strength results than the other chemical treatments.
The surface mechanical treatment almost doubled the bond strength values. Z-Primer Plus have enhanced bond strength values of composite to zirconia.
评估机械表面处理和化学底漆应用对复合材料与氧化锆之间剪切粘结强度的影响。
根据机械处理（未处理/氧化铝喷砂）和化学处理（无底漆/单组分粘结剂Plus/实验性氧化锆底漆/Z-Prime Plus）之间的几种可能组合，将80块Lava Frame氧化锆块随机分配到实验组（n = 10）。然后应用粘结系统和复合树脂，并对样品进行热循环（5°C - 55°C，500次循环）。进行剪切粘结强度测试和失效模式分析。SBS数据通过双向方差分析进行分析，随后进行Student-Newman-Keuls事后检验，失效模式通过Kruskal-Wallis和Mann-Whitney检验进行分析（p<0.05）。
剪切粘结强度平均值在6.9至23.2 MPa之间。氧化铝喷砂表面处理使粘结强度值有统计学意义的增加（p<0.05）。用Z-Prime Plus处理的组比其他化学处理获得了更高的粘结强度结果（p<0.05）。
表面机械处理使粘结强度值几乎翻倍。Z-Primer Plus增强了复合材料与氧化锆之间的粘结强度值。
