ABSTRACT Bonding surface pretreatment of zirconia ceramic dental restorations with a nanostructured alumina coating (NAC) provides a substantially stronger and durable bond than clinically established air-particle abrasion. However, the synthesis of NAC should completely comply with everyday dental laboratory practices. In the present study, the effect of various dental laboratory firing procedures, such as glaze, veneer and regeneration firings of zirconia, on the temperature-dependent phase evolution of NAC was studied (XRD) and related to the resin-cement shear-bond strength of as-sintered, high-pressure (4 bar) and low-pressure (1 bar) air-particle-abraded zirconia surfaces with or without a combination of MDP primer. Half of each sample groups (n = 20) were subjected to 12000× thermocycles in water. The results were statistically analysed using t-test and one-way ANOVA. When fired at 900 and 1050°C and topotactically transformed to γ- or a mixture of δ- and θ-aluminas, NAC provided highest and clinically acceptable bond-strengths (>20Mpa) not affected by thermocycling.

中文翻译：

---

烧制方案对氧化铝涂层氧化锆陶瓷树脂结合强度的影响

摘要 使用纳米结构氧化铝涂层 (NAC) 对氧化锆陶瓷牙齿修复体进行粘合表面预处理，可提供比临床建立的空气颗粒磨损更坚固和耐用的粘合。然而，NAC 的合成应完全符合日常牙科实验室的做法。在本研究中，研究了各种牙科实验室烧制程序，例如釉料、饰面和氧化锆再生烧制对 NAC 随温度变化的相演变 (XRD) 的影响，并与树脂-水泥剪切结合强度有关烧结态、高压（4 巴）和低压（1 巴）空气颗粒研磨氧化锆表面，使用或不使用 MDP 底漆组合。每个样品组的一半 (n = 20) 在水中进行 12000 次热循环。使用 t 检验和单因素方差分析对结果进行统计分析。当在 900 和 1050°C 下烧制并拓扑转化为 γ- 或 δ- 和 θ- 氧化铝的混合物时，NAC 提供了最高且临床可接受的键强度 (>20Mpa)，不受热循环的影响。