Analysis of the distribution of silver existed in the surface of antimicrobial denture base materials containing silver-zeolite

第一项研究的目的是探讨含银沸石(2wt%)的5种市售组织调节剂对白色念珠菌和院内呼吸道感染致病菌金黄色葡萄球菌和铜绿假单胞菌的体外抗菌作用。含银沸石组织调理剂对白色念珠菌和医院内呼吸道感染致病菌具有4周的体外抗菌作用。第二项研究的目的是明确在37ﾟC下，含银沸石和含银沸石(2wt%)的组织调理剂在蒸馏水和人工唾液中释放的银离子浓度。结果表明，含银沸石组织调节剂的抗菌效果可能与其表面的Ag~(++)有密切关系，因为各溶液中只有极少量的Ag~+被释放出来。

The purpose of the first study was to elucidate the in vitro antimicrobial effect of five commercially available tissue conditioners containing silverzeolite (2 wt%) on Candida albicans and nosocomial respiratory infectioncausing bacteria, Staphylooccus aureus and Pseudomonas aeruginosa. Tissue conditioners containing silver-zeolite have been shown to have antimicrobial effects for 4 weeks on C.albicans and nosocomial respiratory infection-causing bacteria in saliva in vitro.The purpose of the second study was to clarify the concentration of Ag^+ released into distillled water and artificial saliva from both only silverzeolite and tissue conditioner containing silver-zeolite (2 wt%) at 37ﾟC for 24 hours. The results indicate that the antimicrobial effect of tissue conditioner containing silver-zeolite may be closely related to Ag^+ on the surface of it because of an extremely small quantity of Ag^+ released into each solution.