上颌第二前磨牙3根4根管1例及文献回顾

李红,辛秉昌,滕琦

A case of maxillary second premolar with 3 teeth and 4 root canals and a literature review

LI Hong,XIN Bingchang,TENG Qi

口腔疾病防治 . 2019, (2): 107 -109 . DOI: 10.12016/j.issn.2096-1456.2019.02.008