碳离子注入对义齿基托树脂表面性能改进的实验研究

目的研究碳离子注入对义齿基托树脂表面性能的影响。方法制备20个热固化型义齿基托树脂试件，并随机分成实验组（进行碳离子注入）和对照组（不做任何处理），每组10个试件。分别进行纳米硬度、润湿性和耐磨性的检测，实验组和对照组任取1个试件进行表面化学结构的红外光谱分析。结果实验组和对照组试件表面纳米硬度值、接触角、质量损失量间的差异有统计学意义（P<0.01）。红外光谱分析显示实验组试件表面有羟基的生成。结论碳离子注入有明显改善义齿基托树脂相关性能的作用。

Effect of carbon ion implantation on the surface properties of denture base resins

Objective To investigate the effect of carbon ion implantation on the surface properties of denture base resins. Methods Twenty heat-curing denture base resins specimens were made in this study. All the specimens were equally divided into two groups randomly with each group ten specimens. One was experimental group for carbon ion implantation and the other was control group without any treatment. The nano-hardness, wettability and wearability of all the specimens were tested. Then one specimen chosen from each group was used for infrared spectrum analysis. Results There was statistical difference in nano-hardness, contact angle and quality loss between experimental group and control group（P<0.01）. New hydroxyl was formed in the surface of experimental group specimen from infrared spectrum analysis. Conclusion Carbon ion implantation has a positive effect in improving the surface properties of denture base resins.