紫外线和消毒剂协同杀菌作用的研究

采用紫外线和二氧化氮的协同杀菌作用对冻虾仁中的副溶血性弧菌进行控制,微生物学检验表明,紫外线和二氧化氯的协同作用比单独的紫外线和二氧化氯杀菌效果好,在协作作用中,消毒剂是主体,消毒剂的浓度和作用时间起主导作用,紫外线起协同作用。     

An alternative magnesium-based root canal disinfectant: Preliminary study of its effi cacy against Enterococcus faecalis and Candida albicans in vitro

Organisms invading root canal systems result in serious pulpal and periapical disease. To eliminate microorganisms and restrain secondary infections, dental materials with antibacterial properties are urgently needed in endodontics. Magnesium is considered as a promising biodegradable and biocompatible implant material. However, there are barely researches about its application in endodontic therapy. This work investigated the in vitro efficacy of magnesium powder against Enterococcus faecalis and Candida albicans compared with a common disinfectant, calcium hydroxide. With Calcium hydroxide served as a comparison it demonstrated the qualified antibacterial and anti-fungus properties of Mg as root canal disinfectant due to its high alkalinity of degradation, and the antimicrobial efficacy enhanced with the decreasing powder size.