Establishment of the surface treatment applied by silicate techniques to zirconia ceramics and application of the treatment to resin materials for veneering

为探讨部分稳定的四方氧化锆(Y-TZP)作为口腔修复体顶盖材料的最高粘结强度和优异的粘结耐久性，对Y-TZP表面进行了未改性(NMD)、氧化铝颗粒喷砂(ASB)和摩擦化学(TBC)处理+硅烷偶联剂(SLC)处理。分别用两种磷酸酯单体(AZ：AZ底漆，EP：Epricord)进行表面修饰，然后使用树脂基胶粘结剂(RELY-X ARC)。粘接试件放在37℃的去离子水中保存24小时，其他组承受30,000次热应力以进行耐久性测试。剪切粘结试验用万能试验机以1 mm/min的速度进行。用EP和AZ对TBC进行热应力处理后的剪切粘结强度与放置24 h后的剪切强度没有显著差异(p&gt；0.05)，用磷酸酯单体特别是EP进行联合处理可以获得持久的粘结性能，是提高与Y-TZP粘结性能的合适表面处理。

The aim of this study was to investigate the highest bonding strength and superior bonding durability to partially stabilized tetragonal zirconia (Y-TZP) for coping material of dental prostheses.The surface of Y-TZP were treated by no modification (NMD), sandblasting by alumina particles (ASB), and tribochemical (TBC) treatment+ silane coupling agent(SLC). Two phosphate acid ester monomers (AZ: AZ primer, EP: Epricord) were applied to each surface modification followed by application of resin-based luting cement (Rely-X ARC). Bonding specimens were placed in deionized water at 37℃ and stored for 24 h. The other groups were subjected to 30,000 cycles of a thermal stress for the durability test. Shear bond tests were done using a universal testing machine at 1 mm/min. Shear bond strengths of combination treatments using EP and AZ on TBC treatment after thermal stress showed no significant difference (p>0.05) compared with those of storage after 24 h. Combination treatment using phosphoric acid ester monomer, especially for EP, could achieve a durable bond, and was suitable surface treatment for enhancement of bonding characteristics to Y-TZP.