全瓷冠桥抗折性能的研究  

The Study of the Breaking Resistance of All Ceramic Crown

作　　者：王少萍[1] 繁洪 

机构地区：[1]天津市口腔医院修复科,天津300041

出　　处：《医学综述》2010年第15期2323-2326,共4页Medical Recapitulate

摘　　要：全瓷冠抗折性能对修复体远期效果有重要影响。不同材料和制作技术、不同黏结剂、修复体设计和制作均对全瓷冠抗折性能有影响。陶瓷的内部强度增强是通过在玻璃基质中分散第二相物质来实现的,常用的第二相物质有氧化铝、氧化锆、白榴石、氧化镁铝等。氧化铝水平的提高,陶瓷的抗折强度随之增加。氧化锆增韧陶瓷具有高强度和高韧性,是陶瓷增韧剂的首选。纳米陶瓷具有金属一样的柔韧性和可加工性。树脂黏结剂可提高全瓷冠抗折强度。The breaking resistance has a significant influence on the long term effect of all ceramic crown. The possible influence factors contains ： ceramic material, production technology, bonding system and design of crown. Adding second phase to the glass matrix can improve breaking resistance, alumina,zircania, white garnet, magnesium and aluminum all can be used as second phase. The more alumina, the higher break- ing resistance. The Zircania Toughened Ceramic has high strength and toughness, and is the preferred material to improve the toughness. Nano-ceramic has the same flexibility and precessability as metal. Resin bonding system can improve the breaking resistance of all ceramic crown.

关 键 词：全瓷冠 抗折性能 陶瓷 

分 类 号：R783[医药卫生—口腔医学]