TY - Journal of Prevention and Treatment for Stomatological Diseases A1 - KONG Qianying,LIANG Lizhong,WANG Guangyong,QIN Shiqi T1 - A cone-beam computed tomography study of the root and canal morphology of maxillary premolars Y1 - 2020-03-31 00:00:00.0 JF - Journal of Prevention and Treatment for Stomatological Diseases JO - Journal of Prevention and Treatment for Stomatological Diseases SP - 246 EP - 251 VL - 28 IS - 4 UR - {https://www.kqjbfz.com/EN/10.12016/j.issn.2096-1456.2020.04.008} N1 - 10.12016/j.issn.2096-1456.2020.04.008 ER -