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

本研究的目的是探讨部分稳定的四方氧化锆（Y-TZP）作为修复体的粘接材料具有最高的粘接强度和优异的粘接耐久性。采用无改性（NMD）、氧化铝颗粒喷砂（ASB）和摩擦化学(TBC) +硅烷偶联剂（SLC）对Y-TZP表面进行处理。两种磷酸酯单体（AZ: AZ底漆，EP: Epricord）分别应用于每个表面改性，然后应用树脂基水泥（relay - x ARC）。粘接试样置于37℃去离子水中保存24 h，其余组进行3万次热应力循环耐久性试验。剪切粘结试验采用万能试验机，以1 mm/min的速度进行。热应力后，EP和AZ对TBC处理的剪切粘接强度与储存24 h后的粘接强度无显著差异（p>0.05）。磷酸酯单体组合处理，特别是EP，可以实现持久的粘接，是增强Y-TZP粘接特性的合适表面处理。

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.