Improved bonding of zirconia substructures to resin using a "glaze-on" technique
Improved bonding of zirconia substructures to resin using a "glaze-on" technique
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DOI：
10.1016/j.jdent.2011.12.011
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发表时间：
2012-04-01
影响因子：
4.4
通讯作者：
Burke, F. J. Trevor
中科院分区：
文献类型：
--
作者：
Everson, Peter;Addison, Owen;Burke, F. J. Trevor
目的：研究应用可酸蚀玻璃的薄中间涂层对甲基丙烯酸酯树脂基粘固剂和氧化钇稳定氧化锆牙科陶瓷基底之间的剪切粘结强度的影响。使用连续等级的碳化硅，然后用25 μ m直径的氧化铝颗粒进行空气研磨。将标本随机分为11组（A-K）（n = 10），A组作为对照组。对A组样本的上表面进行摩擦化学涂层处理（CoJet，3 M ESPE）。根据制造商推荐的烧制制度施加五种上釉陶瓷并烧制。釉用10%HF酸蚀刻，并且所有样品涂有硅烷底漆。采用了两种不同的储存方案（湿储存与热循环）。通过使用Rely-X Unicem（3 M ESPE）树脂基水泥将树脂基复合材料圆柱体粘结到制备的陶瓷表面的中心来产生剪切粘结强度测试样本。进行剪切粘结强度测试并记录失效载荷。在95%显著性水平下的方差析因分析表明，与单独使用树脂基骨水泥相比，所有上釉技术导致剪切粘结强度显著增加（P < 0.01），不同上釉陶瓷导致平均剪切粘结强度显著差异（P = 0.008）。的差异是一个功能的存储状态（湿存储与热循环（P = 0.013））。结论：在目前的调查中使用的上釉技术导致在一个显着增强的剪切粘结应力的树脂基水泥相比，目前的“金标准”-摩擦化学涂层。(C)2012爱思唯尔有限公司出版
Objective: To investigate the influence of applying thin intermediary coatings of acid-etchable glasses on the shear bond strength between a methacrylate resin based cement and an yttria-stabilized zirconia dental ceramic substrate.Methods: The upper and lower surfaces of 110 sintered yttria-stabilised tetragonal zirconia polycrystalline disc-shaped specimens were polished using sequential grades of Silicon Carbide, then air-abraded with 25 mu m diameter alumina particles. Specimens were randomly allocated to 11 groups (A-K) (n = 10), group A acting as control. The upper surface of Group A specimens was subjected to a tribochemical coating regime (CoJet, 3M ESPE). Five glazing ceramics were applied and fired according to the manufacturer's recommended firing regime. The glaze was etched with 10% HF acid and all specimens coated with a silane primer. Two differing storage regimes were employed (wet storage vs thermocycling). Shear bond strength testing specimens were created by cementing resin-based composite cylinders to the centre of the prepared ceramic surface using Rely-X Unicem (3M ESPE) resin based cement. Shear bond strength testing was performed and load at failure recorded.Results: A factorial analysis of variance at a 95% significance level demonstrated that all glazing techniques resulted in a significant increase in the shear bond strength compared with using the resin based cement alone (P < 0.01), with the different glazing ceramics resulting in significant differences in mean shear bond strength (P = 0.008). The differences were a function of the storage state (wet storage vs thermocycling (P = 0.013)).Conclusion: The glazing techniques used in the current investigation resulted in a significantly enhanced shear bond stress to the resin based cement when compared with the current 'gold standard' - tribochemical coating. (C) 2012 Published by Elsevier Ltd.