口腔内微生物菌群复杂，因牙菌斑、龋齿窝沟，常是厌氧菌繁殖生长的良好培养基。在牙拔除术后，患者常常有轻度的低热，局部肿胀，伤口疼痛。我科对１１８例困难拔牙患者应用替硝唑预防感染，取得较满意疗效，现总结报道如下。１临床资料１．１一般资料１１０例为门诊病人... Microbial flora in the mouth complex, due to dental plaque, dental caries pit, often anaerobic bacteria breeding growth good medium. After dental extraction, patients often have mild fever, local swelling, and wound pain. Our department of 118 patients with difficult tooth extraction tinidazole prevention of infection, achieved more satisfactory results, are summarized as follows. 1 clinical data 1.1 general information 110 outpatients ...