新型复合弓丝抗变形链球菌粘附的研究  

Anti-adhesion Study of Laser Welding Composite Arch Wire to Streptococcus Mutans

作　　者：张兵[1] 于文雯 张超[2,3] 刘继明[1] 孙晗[1] 孙新华[1] 

机构地区：[1]吉林大学口腔医学院正畸科,吉林长春130021 [2]南方医科大学附属口腔医院 [3]广东省口腔医院正畸科

出　　处：《口腔医学研究》2015年第9期876-879,共4页Journal of Oral Science Research

摘　　要：目的:采用荧光显微镜和扫描电镜,观察激光焊接加铜中间层镍钛-不锈钢复合弓丝(Composite Arch wire,CAW)的抗变形链球菌粘附作用。方法:将未与变形链球菌共培养的镍钛弓丝、不锈钢弓丝、复合弓丝及铜丝组分别作为空白对照组;将与变形链球菌共培养的镍钛弓丝、不锈钢弓丝、复合弓丝及铜丝组分别作为实验组,经共培养48h,进行荧光显微镜与扫描电镜观察。结果:实验组与空白对照组经荧光显微镜观察,显示复合弓丝组加铜中间层处与铜丝表面均呈红色荧光区;扫描电镜观察显示实验组复合弓丝组加铜中间层处与铜丝细菌粘附均少于镍钛弓丝、不锈钢弓丝及复合弓丝的镍钛侧及不锈钢侧;且变形链球菌形态出现溶解与破碎现象。结论:复合弓丝组加铜中间层处对变形链球菌具有一定的抗粘附作用。Objective： To study the anti--adhesive characteristics of composite arch wire of lased-welded nickel titanium arch wire and stainless steel arch wire with pure copper interlayer （CAW） with fluorescence microscope and scanning electron microscope. Methods： The nickel titanium arch wire, stainless steel arch wire copper wire and CAW unco-cultured with streptococcus mutans suspension were selected as experimental group. The nickel titanium arch wire, stainless steel arch wire copper wire and CAW co-cultured with streptococcus mutans suspension were selected as control group. The surface morphology was detected with fluorescent staining and scanning electron microscope after 48 hours. Results： The copper interlayer of CAW and copper wire showed red fluorescence of none bacterial adhesion area in experimental grous and control grous with fluorescent microscope. Less streptococcus mutans adhered to the copper interlayer of CAW than the nickel titanium arch wire, stainless steel arch wire, and composite arch wire nickel titanium parts, stainless steel parts. At the same time, the streptococcus mutans became dissolved and broken. Conclusion： The copper interlayer of CAW has certain anti--adhesive effect on streptococcus mutans.

关 键 词：复合弓丝 激光焊接 变形链球菌 抗粘附 

分 类 号：R783.5[医药卫生—口腔医学]