Development of surface modification method of zirconia for realization of all-ceramic restoration

为了实现氧化锆全瓷修复体，开发氧化锆表面改性方法以提高与饰面瓷的结合强度、与粘固剂的结合强度以及生物相容性至关重要。采用喷砂、酸蚀、硅烷偶联剂、水热处理、玻璃涂层等表面处理方法，测定氧化锆与瓷贴面和树脂水门汀的结合强度，并评价其生物相容性。结果表明，氧化锆表现出不同于传统牙科陶瓷的行为。指出应开发新的氧化锆专用表面处理方法。

To realize all-ceramic restorations applied with zirconia, it is important of development of surface modification method for zirconia in order to improve the bonding strength to veneering porcelains, the bonding strength to cements, and biocompatibility. Bonding strength of zirconia with surface treatment such as sandblasting, acid etching, silane coupling, hydrothermal treatment, and glass coating were determined to the veneering porcelains and resin cements, and their biocompatibility were evaluated. The results demonstrated that zirconia showed different behavior from those of conventional dental ceramics. It indicates that new surface treatment method specialized to zirconia should be developed.