牙科用抗菌性金属烤瓷材料的摩擦磨损性能研究  

Tribological Behavior of Dental Porcelain Material Containing Antibacterial Agent

作　　者：颉伟博[1] 刘斌[1] 王宏刚[2] 张彦杰[2] 吕晋军[2] 杨生荣[2] 

机构地区：[1]兰州大学口腔医学院,甘肃兰州730000 [2]中国科学院兰州化学物理研究所固体润滑国家重点实验室

出　　处：《摩擦学学报》2007年第6期583-587,共5页Tribology

基　　金：甘肃省科技攻关项目资助(2005-20072GS054-A43-014-10);甘肃省自然科学基金资助项目(2004-20073ZS041-A25-054)

摘　　要：采用口腔烤瓷制作工艺制备出添加和未添加抗菌剂的牙科用金属烤瓷材料,考察了2种金属烤瓷材料的力学性能,在Optimol SRV型摩擦磨损试验机上评价2种金属烤瓷材料在人工唾液润滑条件下与3种常用牙科修复材料对摩时的摩擦磨损性能.结果表明,添加质量分数为2%的抗菌剂,可以提高金属烤瓷材料的显微硬度、弯曲强度和断裂韧性,同时改善金属烤瓷材料的摩擦磨损性能,其磨损机理与偶件材料相关.含LZB-GC抗菌剂的金属烤瓷材料是临床应用中较为理想的牙科材料.Dental porcelain materials without and with antibacterial agent were prepared. The mechanical properties of the two dental porcelain materials were investigated and compared. With addition of 2wt% antibacterial agent, the microhardness, bending strength and fracture toughness of the material can be improved. Friction and wear tests of the two materials sliding against three rehabit materials were conducted on an Optimol SRV friction and wear test under lubrication of artificial saliva. LZB-GC glaze exhibited better tribological performance than that of PFM without antibacterial agent. The wear mechanisms were highly dependent on the couterpart materials. With combination of good antibacterial nature, good mechanical strength and improved triboligical properties. LZB-GC glaze is a candidate material for dental application.

关 键 词：金属烤瓷材料 抗菌剂 力学性能 摩擦磨损性能 

分 类 号：TH117.3[机械工程—机械设计及理论]