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首页> 外文期刊>Journal of dentistry >Durable bonding to mechanically and/or chemically pre-treated dental zirconia
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Durable bonding to mechanically and/or chemically pre-treated dental zirconia

机译：耐用的粘合到机械和/或化学预处理的牙科氧化锆

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Objectives: To evaluate the effect of mechanical and chemical surface pre-treatment on the bond durability of two composite cements to dental zirconia. Methods: Fully sintered IPS e.max ZirCAD (Ivoclar-Vivadent) blocks were either subjected to tribochemical silica sandblasting (CoJet, 3M ESPE) or not mechanically pre-treated. Next, the zirconia samples were either additionally pre-treated using one of two silane/MDP-combined ceramic primers (Clearfil Ceramic Primer, Kuraray; Monobond Plus, Ivoclar-Vivadent), or not further chemically pre-treated. Finally, two identically pre-treated zirconia blocks were bonded together using either a conventional BisGMA-based (Clearfil Esthetic Cement, Kuraray) or an MDP-based (Panavia F2.0, Kuraray) 'self-etch' dual-cure composite cement. The specimens were trimmed at the interface to a cylindrical hour-glass shape and stored for 7 days in distilled water (37 ??C), after which they were randomly exposed to one of three ageing protocols: (1) immersed in 37 ??C water for 10 days (10 d); (2) subjected to 10,000 thermo-cycles (TC); or (3) immersed in 37 ??C water for 6 months (6 m). After storage, the micro-tensile bond strength (??TBS) was determined in MPa (n = 15-21/group). Fractographic analysis was performed using SEM. Results: Weibull analysis revealed the highest Weibull scale and shape parameters for the 'CoJet/Clearfil Ceramic Primer/Panavia F2.0/10d' combination. While the BisGMA-based composite cement Clearfil Esthetic Cement (Kuraray) bonded equally well to zirconia using either tribochemical silica sandblasting (CoJet, 3M ESPE) or not, sandblasting appeared indispensable for the MDP-based and more hydrophilic composite cement Panavia F2.0 (Kuraray). Conclusions: Combined mechanical and chemical pre-treatment can best be recommended to durably bond to zirconia. Clinical significance: As a standard procedure to durable bond zirconia to tooth tissue, both mechanical (tribochemical silica coating) and chemical (silane/MDP-combined ceramic primers) is clinically highly recommended. ? 2012 Elsevier Ltd. All rights reserved.
机译：目的：评价机械和化学表面预处理对牙科氧化锆两种复合水泥的粘合耐久性的影响。方法：完全烧结的IPS E.Max Zircad（IVoclar-Vivadent）嵌段经受培养基化学硅胶（Cojet，3M Espe）或没有机械预处理。接下来，使用两个硅烷/ MDP组合陶瓷引物之一（Clearfil Ceramic Primer，Kuraray）之一另外预处理氧化锆样品。或不进一步化学预处理，使用两种硅烷/ MDP组合陶瓷引物之一进行预处理。最后，使用常规的基于Bisgma的（Clearfil美学水泥，Kuraray）或基于MDP的（Panavia F2.0，Kuraray）'自蚀刻的双固化复合水泥，将两个相同预先处理的氧化锆嵌段粘合在一起。将样品在界面上修整到圆柱形时玻璃形状，并在蒸馏水（37℃）中储存7天，然后将它们随机暴露于三种老化方案中的一种：（1）浸入37 ?? C水10天（10 d）; （2）经受10,000个热循环（TC）;或（3）浸入37℃的3个月（6米）。在储存后，在MPa（n = 15-21 /组）中测定微拉伸键强度（Δθ）。使用SEM进行式分析。结果：Weibull分析显示了“Cojet / Clearfil陶瓷底漆/ Panavia F2.0 / 10d”组合的最高威布尔尺度和形状参数。虽然基于Bisgma的复合水泥清除纤维（Kuraray）使用Tricchechmical Silica Sandblasting（Cojet，3M Espe）与氧化锆相同键合，但喷砂对于MDP基和更多亲水复合水泥Panavia F2.0是必不可少的（ Kuraray）。结论：最佳地建议合并机械和化学预处理，以持久地粘合氧化锆。临床意义：作为耐用键氧化锆至牙齿组织的标准程序，临床强烈建议临床（致力学二氧化硅涂层）和化学（硅烷/ MDP组合陶瓷引物）。还2012年elestvier有限公司保留所有权利。

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