TY - Journal of Prevention and Treatment for Stomatological Diseases A1 - ZHANG Xiaowei,LIANG Jingping,RAN Shujun T1 - A comparison of the effect of different nickel-titanium instruments combined with ultrasonic irrigation on root canal preparation Y1 - 2019-03-20 00:00:00.0 JF - Journal of Prevention and Treatment for Stomatological Diseases JO - Journal of Prevention and Treatment for Stomatological Diseases SP - 167 EP - 171 VL - 27 IS - 3 UR - {https://www.kqjbfz.com/EN/10.12016/j.issn.2096-1456.2019.03.005} N1 - 10.12016/j.issn.2096-1456.2019.03.005 ER -