Objective To observe the clinical effect of FE composite enzyme on the periodontitis and side effect , comparing with metronidazole solution.
目的观察FE复合酶对冠周炎的疗效及不良反应，并与甲硝唑漱口液进行比较。
Objective To observe the clinical effect of FE composite enzyme on the periodontitis and side effect , comparing with metronidazole solution.
目的观察FE复合酶对冠周炎的疗效及不良反应，并与甲硝唑漱口液进行比较。
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