Zirconia is the preferred material for dental restorations; however, dental restorations are usually affected by zirconia fractures due to chipping and delamination of the veneer ceramic. One effective solution for repairing chemically inert zirconia frameworks is to strongly chemically bond them with the composite resin via surface modification. Thus, the bonding strength between the zirconia and composite resin determines the performance of dental restoration. Herein, we investigate the shear bond strength between zirconia ceramic and two ceramic repair systems before and after thermal cycling based on different surface pretreatments, including air-abrasion and a novel silane coupling agent. When treated with combined sandblasting, novel silane and 10-methacryloyloxydecyl hydrogen phosphate act as a bonding agent for the zirconia surface, and the maximum shear bond strength achieves 27.5 MPa, as measured by a universal testing machine through the average of 16 separate measurements. The results show that the combined treatment resists the interface damage caused by expansion and contraction during thermal cycling. The long-term bond durability is due to the micro-mechanical bond force formed by resin and ceramic, and the chemical bonds of Zr-O-Si at the interface. Results indicate that selective pretreating the surface results in high bond strength between the zirconia and the composite resin, which is meaningful to optimize dental restoration.

中文翻译：

---

基于复合表面处理的氧化锆与复合树脂之间的高结合强度用于牙科修复

氧化锆是牙齿修复的首选材料；然而，由于饰面陶瓷的碎裂和分层，牙齿修复体通常会受到氧化锆断裂的影响。修复化学惰性氧化锆骨架的一种有效解决方案是通过表面改性将它们与复合树脂强化学键合。因此，氧化锆与复合树脂之间的结合强度决定了牙齿修复的性能。在此，我们研究了基于不同表面预处理（包括空气磨损和新型硅烷偶联剂）的热循环前后氧化锆陶瓷和两种陶瓷修复系统之间的剪切粘合强度。当用联合喷砂处理时，新型硅烷和 10-甲基丙烯酰氧基癸基磷酸氢盐作为氧化锆表面的粘合剂，最大剪切粘结强度达到27.5 MPa，由万能试验机通过16次单独测量的平均值测得。结果表明，组合处理抵抗了热循环过程中由膨胀和收缩引起的界面损伤。长期的结合耐久性是由于树脂和陶瓷形成的微机械结合力，以及界面处Zr-O-Si的化学键。结果表明，选择性预处理表面导致氧化锆与复合树脂之间的结合强度高，这对优化牙科修复具有重要意义。结果表明，组合处理抵抗了热循环过程中由膨胀和收缩引起的界面损伤。长期结合耐久性是由于树脂和陶瓷形成的微机械结合力，以及界面处Zr-O-Si的化学键。结果表明，选择性预处理表面导致氧化锆与复合树脂之间的结合强度高，这对优化牙科修复具有重要意义。结果表明，组合处理抵抗了热循环过程中膨胀和收缩引起的界面损伤。长期的结合耐久性是由于树脂和陶瓷形成的微机械结合力，以及界面处Zr-O-Si的化学键。结果表明，选择性预处理表面导致氧化锆与复合树脂之间的结合强度高，这对优化牙科修复具有重要意义。