吉林大学学报（医学版）2017，Vol.43Issue(2)：328-333,6.DOI:10.13481/j.1671-587x.20170222
6种复合树脂耐磨性能和影响因素的体外评价
Evaluation on wear resistance of six composite resins and influencing factors in vitro
摘要
Abstract
Objective:To investigate the wear resistance of four low-shrinkage commercial composite resins and two traditional composite resins in vitro and discuss the relative influencing factors, and to illustrate the inner relationship of the wear resistance of resins and material composition.Methods:Four low-shrinkage commercial composite resins including CLEARFIL MAJESTY Posterior(CMP), Filtek LS(LS), Admira(AD), Kalore(KA) and two traditional composite resins including Filtek Z350XT (Z350), Solitaire2(S2) were chosen.The bar-shaped specimens were fabricated and mounted in a UMT-2 wear testing machine and abraded with the two-body media (distilled water) with a Si3N4 ball as antagonist.The maximum wear depth was determined after 14 400 cycles.The friction coefficient was determined during the test.The worn surfaces were examined with SEM.Results:CMP showed the lowest maximum wear depth and KA presented the highest maximum wear depth.The maximum wear depth ranked as follows: CMP<S2≈LS<Z350≈AD<KA(P<0.05).The wearing surfaces of Z350, S2, AD and KA were flatter and smoother, showing attrition wear and adhesive wear, whereas the wearing surfaces of CMP and LS were rougher, showing fa tigue wear.Conclusion:The wear resistance of composite resins correlated to their type of filler, filler content and filler-resin matrix bonding.关键词
低收缩复合树脂/摩擦系数/最大磨损深度/耐磨性Key words
low-shrinkage composite resin/friction coefficient/maximum wear depth/wear resistance分类
医药卫生引用本文复制引用
金杰,宫海环,严敏,高平,魏茜茜,张阳,朱松..6种复合树脂耐磨性能和影响因素的体外评价[J].吉林大学学报（医学版）,2017,43(2):328-333,6.基金项目
国家自然科学基金资助课题(81371185) （81371185）
吉林省发改委科研基金资助课题(2015Y038-2) （2015Y038-2）
吉林大学研究生创新基金资助项目(2016221) （2016221）
