微观组织结构对纳米氟磷灰石饰瓷磨损行为的影响研究  

The effects of microstructure on the wear performance of nano fluorapatite veneering porcelain

作　　者：杨蕊 门天剑 李珂奕 于海 余昊翰 宋文 蒙萌 YANG Rui;MEN Tianjian;LI Keyi;YU Hai;YU Haohan;SONG Wen;MENG Meng(The Twelfth Team of Third Brigades,College of Basic Medicine,The Fourth Military Medical University,China Xi'an,710032;State Key Laboratory of Military Stomatology&National Clinical Research Center for Oral Diseases&Shaanxi Key Laboratory of Stomatology,Department of Prosthodontics,School of Stomatology,The Fourth Military Medical University,Xi'an)

机构地区：[1]第四军医大学基础医学院学员三大队十二队,西安710032 [2]军事口腔医学国家重点实验室,国家口腔疾病临床医学研究中心,陕西省口腔医学重点实验室,第四军医大学口腔医院口腔修复科

出　　处：《实用口腔医学杂志》2022年第3期310-316,共7页Journal of Practical Stomatology

基　　金：国家自然科学基金(编号:81870792);陕西省自然科学基础研究计划一般项目(编号:2022JM-467);陕西省卫生健康科研基金项目(编号:2021B003)。

摘　　要：目的:探索微观组织结构对纳米氟磷灰石饰瓷磨损行为的影响。方法:利用粉浆涂塑烧结及高温熔炼的方法分别制备IPS e.max®Ceram纳米氟磷灰石饰瓷和纳米氟磷灰石原始玻璃材料试件,用氧化锆作为配副,进行Pin-on-Disk滑动摩擦磨损实验(n=6),绘制磨损曲线,场发射扫描电镜观察磨损形貌。结果:纳米氟磷灰石饰瓷及原始玻璃磨损曲线呈现跑合期、稳定磨损期两个阶段,且饰瓷跑合期磨损行为波动较大。结论:微观组织不均匀性是纳米氟磷灰石饰瓷磨损过程具有明显不稳定性的主要原因。Objective:To investigate the effects of microstructure on the wear performance of nano fluorapatite veneering porcelain.Methods:The samples of IPS e.max®Ceram nano fluorapatite veneering porcelain and parent glass were prepared by slip-casting sintering and high temperature melting way.The wear performance of them were investigated using Pin-on-Disk tribometer,and the wear test was paired with a fixed upper zirconia antagonist.The wear curves were drawn and the micromorphology of the wear surface was observed by field emission scanning electron microscopy(FESEM).Results:The wear curves of nano fluorapatite veneering porcelain and parent glass were divided into running-in and steady wear stages.The standard deviation of porcelain wear loss curve was larger than that of parent glass during running-in wear stage.Conclusion:The wear performance of veneering porcelain is not stable due to the inhomogeneous microstructure.

关 键 词：微观组织 纳米氟磷灰石 饰瓷 磨损行为 

分 类 号：R783.1[医药卫生—口腔医学]