口腔修复体材料与天然牙的磨损匹配性研究

发布时间：2018-05-23 12:56

本文选题：氧化锆陶瓷 + 天然牙　；参考：《人工晶体学报》2014年04期

【摘要】：以人工唾液为润滑剂,采用新鲜拔除的天然牙与TC4钛合金以及氧化锆陶瓷平面试件进行低速往复磨损实验。分别从定性和定量分析两个角度研究了口腔修复体材料与天然牙的磨损匹配性。同时,提出了基于逆向工程技术的天然牙最大磨损深度的测量方法,将磨损前后的天然牙进行三维扫描,采用最佳拟合对齐法实现模型的配准。通过对天然牙磨损表面及对摩试件的三维形貌和能谱分析,明确了天然牙与TC4钛合金之间的磨损机制主要表现为磨粒磨损和黏着磨损,而与氧化锆陶瓷之间的磨损更为轻微,主要表现为磨粒磨损。对比天然牙和对摩试件的磨损量可知,氧化锆陶瓷相比于TC4钛合金表现出良好的耐磨损性能和对摩物的低磨损率。
[Abstract]:Using artificial saliva as lubricant, low speed reciprocating wear experiments were carried out with fresh extracted natural teeth, TC4 titanium alloy and zirconia ceramic plane specimen. The wear matching between prosthetic materials and natural teeth was studied by qualitative and quantitative analysis. At the same time, a method of measuring the maximum wear depth of natural teeth based on reverse engineering technology is put forward. The natural teeth before and after wear are scanned in three dimensions, and the model registration is realized by the best fitting alignment method. The wear mechanism between natural tooth and TC4 titanium alloy is mainly abrasive wear and adhesive wear, while the wear between natural tooth and zirconia ceramics is less than that between natural tooth and TC4 titanium alloy, through the analysis of 3D morphology and energy spectrum of the worn surface of natural tooth and friction specimen, and the results show that the wear mechanism between natural tooth and TC4 titanium alloy is mainly abrasive wear and adhesion wear. The main performance is abrasive wear. Compared with TC4 titanium alloy, the wear resistance of zirconia ceramic is better than that of TC4 titanium alloy, and the wear resistance of Zirconia ceramic is lower than that of TC4 titanium alloy.
【作者单位】：南京理工大学机械工程学院;
【基金】：江苏省自然科学基金青年项目(BK2012402) 中央高校基本科研业务费专项资金(2012XQTR001) 江苏省普通高校研究生科研创新计划项目(CXLX13_174)
【分类号】：R783.1

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