载银纳米TiO_2抗菌剂对藻酸盐印模材料抗菌性能的影响  

Effect of Adding Ag-embedded Nano-TiO_2 Antibacterial Agents on the Antibacterial Potential of Alginate Impression Materials

作　　者：高士军[1] 魏思怡[1] 任国欣[1] 初明慧 王冬霞[1] 肖媛媛[1] 

机构地区：[1]佳木斯大学附属第二医院口腔医院修复二科,黑龙江佳木斯154002

出　　处：《口腔医学研究》2015年第7期670-672,共3页Journal of Oral Science Research

摘　　要：目的：研究载银纳米二氧化钛（Ag-TiO2）抗菌剂对藻酸盐印模材料抗菌性能的影响,分析其最佳添加比例。方法：常温下将载银纳米TiO2粉末按不同质量分数0~3.5%加入藻酸盐印模中,采用薄膜覆盖法检测藻酸盐印膜材料的抗菌性。结果：分析实验数据可知实验组与对照组比较差异均有统计学意义（均为P〈0.05）,并且随着Ag-TiO2抗菌剂添加质量比的增高,抗菌率明显增高,在抗菌剂质量分数达到2.0%时,藻酸盐印膜材料抗菌率达到99%以上,2.0%为其最佳添加比例。结论：添加Ag-TiO2抗菌剂对藻酸盐印模材料具有抗菌性,且2.0%为抗菌剂的最佳添加质量比。Objective：To study the effect of Ag-embedded nano-TiO2（Ag- TiO2）antibacterial agent on the antibacterial of alginate impression materials,to analyze the appropriate ratio of the antibacterial agent to the alginate impression material.Methods：The Ag-embedded nano-TiO2 powder were added into the alginate impression materials according to different contents,including 0%,0.5%,1%,1.5%,2%,2.5%,3%,3.5%,Their antibacterial activities were tested by film adhesion method.Results：Data showed the experimental group had statistically significant difference control group（all P〈0.05）.The difference increased with Ag-TiO2 antibacterial agent added mass ratio.The antibacterial efficiency was beyond 99% when the adding ratio of antibacterial agent was 2.0% or beyond 20%.Conclusion：Adding Ag-TiO2 antibacterial agent in alginate impression materials had antimicrobial potential,and the best adding ratio of the Ag-TiO2 antibacterial agent was 2.0%.

关 键 词：Ag-TiO2抗菌剂 藻酸盐印模材料 白色念珠菌 抗菌率 

分 类 号：R783.1[医药卫生—口腔医学]