本文报道甲硝唑和替哨唑体外抗可致牙周病的齿龈内阿米巴的有效药物浓度。虫体在每 ml含甲硝唑2 0μg中孵育 48h或在 40μg中孵育 2 4h全部死亡。虫体在每 ml含替硝唑 40μg中孵育 2 4h全部死亡 This paper reports the effective drug concentrations of metronidazole and teteroinide in vitro against Gingivalis amebiasis, which can cause periodontal disease. The worms were incubated for 48 h each ml containing metronidazole 20 μg or incubated for 24 h in 40 μg all died. The parasites were incubated for 24 h in each ml of tinidazole 40 μg, all of which died