Objective : To observe the clinical effect of the metronidazole - dexamethasone paste on periapical periodontitis of deciduous molar.

目的: 观察甲硝唑 — 地塞米松糊剂在乳磨牙有窦道型慢性根尖周炎治疗中的临床疗效.

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AIM: Observe the clinic effect of Co. Tinidazole Taste in periapical periodontitis of deciduous molar.

目的: 观察复方替硝唑糊剂在乳磨牙有窦道型慢性根尖周炎治疗中的临床疗效.

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