Methods:120 patients with acute adult periodontits.were randomly divided into two groups,treat group(60) were given ZAT control group(60) were given metoonidazole.

• 方法:选择120例急性牙周炎患者随机分为两组,治疗组60例,采用肿痛安治疗;对照组60例,采用甲硝唑治疗。