两种根管预备方法引发根管治疗期间疼痛的观察

徐红梅;王俭;朱晓英;马妍;侯文辉

The clinical evaluation of postoperative pain using two root canal preparaed methods

XU Hongmei;WANG Jian;ZHU Xiaoying;MA Yan;HOU Wenhui

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