Obective To determine the clinical effects of preventing post treatment pain of root canal therapy(RCT) with Zhong Tong An(ZTA), a Chinese medicine.
目的对中成药肿痛安定风止痛胶囊（ZTA）用于预防根管治疗术后疼痛的临床疗效作出评价。
Obective To determine the clinical effects of preventing post treatment pain of root canal therapy(RCT) with Zhong Tong An(ZTA), a Chinese medicine.
目的对中成药肿痛安定风止痛胶囊（ZTA）用于预防根管治疗术后疼痛的临床疗效作出评价。
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