车针与牙釉质的高速磨削行为研究

发布时间：2018-03-08 19:55

本文选题：车针　切入点：牙釉质　出处：《浙江中医药大学》2017年硕士论文　论文类型：学位论文

【摘要】：目的研究车针与金属纯钛、车针与牙釉质的高速磨削行为的相互磨削量,分析高速磨削行为的机理,为口腔修复及牙体预备提供可参考的基础数据。方法1.10枚全新的马尼车针和2mm厚纯钛板在高速磨削台上行高速磨削实验,采用电子分析天平测量磨削前后的车针质量损失量,采用激光共聚焦显微镜测量纯钛板的磨削深度,分析两者磨削量之间的关系。电镜观察实验后的钛板磨削口底部和边缘情况,进而分析其磨削机理。2.制备40个2mm厚的牙釉质片试样,将40枚全新的马尼车针和牙釉质片分别于高速磨削台上行高速磨削实验,采用电子分析天平测量磨削前后的车针质量损失量,采用激光共聚焦显微镜测量牙釉质磨削深度,分析两者磨削量之间的关系。电镜观察实验后的牙釉质磨削口底部和边缘情况,进而分析其磨削机理。最后对比分析车针与纯钛、车针与牙釉质之间的高速耐磨削性能是否一致。3.统计学方法采用SPSS 19.0统计包进行Pearson相关性分析。结果1.在高速磨削行为下,车针的质量损失量与钛板的磨削深度呈正相关关系(P0.05),相关系数为0.758。2.在高速磨削行为下,车针的质量损失量与牙釉质的磨削深度呈正相关关系(P0.05),相关系数为0.392。结论1.车针与纯钛/牙釉质的高速磨削行为下的相互磨削量均呈正相关关系。2.牙釉质的高速耐磨削性能要明显弱于纯钛,这和低速下两者的摩擦学性能匹配的结果不一致。
[Abstract]:Objective to study the mutual grinding behavior of needle and metal pure titanium, needle and enamel, and analyze the mechanism of high speed grinding behavior. Methods 1.10 new Mani needle and 2mm thick titanium plate were used in high speed grinding experiment on high speed grinding table. The loss of needle mass before and after grinding was measured by electronic analytical balance. The grinding depth of pure titanium plate was measured by laser confocal microscope, and the relationship between the grinding amount was analyzed. Then the grinding mechanism was analyzed. 40 enamel specimens with thickness of 2 mm were prepared, and 40 new mannier needles and enamel plates were used for high speed grinding on a high speed grinding table. The mass loss of needle before and after grinding was measured by electronic analytical balance, and the grinding depth of enamel was measured by laser confocal microscope. The relationship between the grinding quantity and the grinding quantity was analyzed. The bottom and edge of tooth enamel grinding were observed by electron microscope, and the grinding mechanism was analyzed. Finally, the needle and pure titanium were compared and analyzed. SPSS 19.0 statistical package was used for Pearson correlation analysis. Results 1. Under the high speed grinding behavior, the wear resistance between the needle and enamel is the same. 3. The method of statistical analysis is used to analyze the correlation of Pearson with SPSS 19.0 statistical package. 1. Under the behavior of high speed grinding, There is a positive correlation between the mass loss of the needle and the grinding depth of the titanium plate with a correlation coefficient of 0.758.2. There was a positive correlation between the quality loss of the needle and the grinding depth of enamel, and the correlation coefficient was 0.392.Conclusion 1.There was a positive correlation between the grinding quantity of the needle and the grinding rate of pure titanium / enamel at high speed. Wear resistance of titanium is obviously weaker than that of pure titanium. This is inconsistent with the results of tribological performance matching at low speed.
【学位授予单位】：浙江中医药大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R783

【相似文献】