下颌第一前磨牙复杂根管治疗2例报告

于晓斐, 孙培, 张慧, 邓婧, 曹颖秀

Treatment of mandibular first premolars with complex root canals: report of 2 cases

YU Xiao-fei, SUN Pei, ZHANG Hui, DENG Jing, CAO Ying-xiu

上海口腔医学 . 2014, (5): 638 -640 .