摘要
全瓷修复材料以良好的美学特性、生物相容性和机械性能在临床上得到了广泛的应用,但全瓷冠桥在复杂的口腔环境下常出现老化现象,致使全瓷材料的颜色及机械性能产生变化。研究全瓷材料的老化现象及其规律可为临床全瓷冠桥的可靠性和耐久性评价及其改进提供有效的理论依据。本文就全瓷材料的老化现象对其颜色和机械性能的影响及影响老化的因素作一综述和评价。
All-ceramic crowns and bridges have been widely used for dental restorations owing to their excellent functionality,aesthetics and biocompatibility.However,the premature clinical failure of all-ceramic crowns and bridges may easily occur when they are subjected to the complex environment of oral cavity.In the oral environment,all-ceramic materials are prone to aging.Aging can lead all-ceramic materials to change color,to lower bending strength,and to reduce anti-fracture toughness.There are many factors affecting the aging of the all-ceramic materials,for example,the grain size,the type of stabilizer,the residual stress and the water environment.In order to analyze the aging behavior,to optimize the design of all-ceramic crowns and bridges,and to evaluate the reliability and durability,we review in this paper recent research progress of aging behavior for all-ceramics restoration materials.
作者
张东姣
陈新民
Zhang Dongjiao;Chen Xinmin(College of West China Stomatology,Sichuan University,Chengdu 610041,China)
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2011年第5期1048-1051,共4页
Journal of Biomedical Engineering
关键词
全瓷修复材料
老化
颜色
弯曲强度
断裂韧性
All-ceramic restoration material
Agingt Color
Bending strengtht Fracture toughness
