甲基丙烯酸偶联TiO_2/PMMA基托树脂的自洁抗菌性能  

Self-cleaning and antimicrobial properties of methacrylic acid coupled TiO_2/PMMA denture base resin

作　　者：陶建祥[1] 宋秀丽 姚元元 陈凤山 苏建生[1] 

机构地区：[1]同济大学附属口腔医院口腔修复科 [2]检验科 [3]正畸科,上海200072

出　　处：《上海口腔医学》2012年第2期130-133,共4页Shanghai Journal of Stomatology

基　　金：上海市科学技术委员会资助项目(0952nm05000)~~

摘　　要：目的:研究甲基丙烯酸偶联TiO2对树脂基托材料的自洁和抗菌性能的影响。方法:按质量比2%、4%、6%及是否添加偶联剂在2种树脂基托材料中,采用反射物体色测定法测定试件对次甲基蓝的降解率,采用薄膜密着法测定试件对白色念珠菌的抑菌率,分析添加量以及偶联剂对试件自洁和抗菌性能的影响。采用SPSS12.0软件包对数据进行统计学处理。结果:试件的自洁和抗菌性能随着TiO2添加量增加而增加,TiO2加量对自洁和抗菌性能有显著影响(P<0.05),而偶联剂则无影响。日进MTi4%组的次甲基蓝降解率为53.96%,抑菌率为71.42%。结论:甲基丙烯酸偶联TiO2/PMMA基托树脂具有良好的自洁抗菌性能。PURPOSE： To study the influence of TiO2 and methacrylic acid on self-cleaning and antimicrobial properties of denture base resin.METHODS： TiO2（2%,4%,6%） and methacrylic acid were respectively added into two makers’ denture base resins.The self-cleaning property was assayed with measuring the decomposition of methylthioninium chloride.The antimicrobial property was tested with the pellicle-sticking method.The data were analysed by SPSS 12.0 software package for two-way ANOVA.RESULTS： The self-cleaning and antimicrobial properties of samples were improved as TiO2 increased.Methacrylic acid had no significant influence on self-cleaning and antimicrobial properties of the samples.The decomposition ratio and antimicrobial ratio of MTi4%（Rijin） were 53.96% and 71.42%,respectively.CONCLUSION： Methacrylic acid coupled TiO2/PMMA denture base resin enjoys good self-cleaning and antimicrobial properties.

关 键 词：甲基丙烯酸 二氧化钛 基托树脂 自洁 抗菌性能 

分 类 号：R318.08[医药卫生—生物医学工程]