纳米载银无机抗菌剂对义齿基托树脂抗菌性能的影响

目的研究纳米载银无机抗菌剂对义齿基托树脂抗菌性能的影响。方法纳米载银无机抗菌剂FUMAT T200-4,按0%(对照组)、1%、2%、3%、4%、5%、7%、10%(V/V)比例添加在加热固化型义齿基托树脂中。采用薄膜密着法检测抗菌剂对变形链球菌、白色念珠菌的抑菌作用,并分析比较抗菌剂添加比例与基托树脂抗菌性能的相关性。结果添加纳米载银无机抗菌剂的基托树脂对变形链球菌、白色念珠菌具有良好的抑菌作用。抗菌剂添加比例1%~10%组对变形链球菌的抑菌率分别为24.5%、73.3%、80.2%、87.2%、90.7%、96.5%、100%,对白色念珠菌的抑菌率分别为26.3%、46.7%、53.3%、63.1%、69.9%、73.2%、79.8%,抗菌性能随添加比例的上升而明显提高。结论纳米载银无机抗菌剂的添加赋予了基托树脂良好的抗菌性能。

Influence of Nano-Silver Base Inorganic Antimicrobial on Denture Base Resin

Objective To explore the influence of nano-silver base inorganic antimicrobial on denture base resin.(Methods)The experimental groups of denture base resin were mixed with the nano-silver base inorganic antimicrobial FUMAT T200-4,whose incorporating doses were 0%(control),1%,2%,3%,4%,5%,7% and 10%(V/V).Antimicrobial properties against Streptococcus mutans and Candida albicans were assayed with the pellicle-sticking(method.) Results The experimental groups had good inhibitory effect on Streptococcus mutans and Candida albicans.The inhibition percents for Streptococcus mutans of each group(1%-10%) were 24.5%,73.3%,80.2%,(87.2%,) 90.7%,96.5% and 100%,and those for Candida albicans were 26.3%,46.7%,53.3%,63.1%,(69.9%,) 73.2% and 79.8%,respectively.The antimicrobial properties of the denture base resin were strengthened with the increasing doses of the antimicrobial. Conclusion Denture base resin incorporated with nano-silver base inorganic antimicrobial enjoys good antimicrobial properties.