灭滴灵又名甲硝唑，为杀毛滴虫药，用于阴道毛滴虫病，梨形鞭毛虫，后又发现此药对阿米巴原虫有杀灭作用．常常用于治疗阿米巴痢疾和阿米巴脓肿，近几年来有文献报道此药用于口腔内厌氧细菌和原虫感染，很多资料已证明口腔内厌氧细菌和原虫分市普遍，感染率高．寄宿于后龈、牙 Metronidazole, also known as metronidazole, is a trichomonad for the vaginal trichomoniasis, flagellated pear-shaped flagellates, and later found that the drug has a killing effect on the amoeba protozoa. Often used for the treatment of amoebic dysentery and amoebic abscess, in recent years there are reports of this medicine for oral anaerobic bacteria and protozoal infections, many data have proven oral anaerobic bacteria and protozoa in general, the infection rate high. Boarding in the gingiva, teeth