上颌第二磨牙弯曲单根单根管1例
王瑶 惠曦 黄定明
Maxillary second molar with curved single root and single canal: A case report
WANG Yao1,2, HUI Xi3, HUANG Ding-ming2
华西口腔医学杂志 . 2011, (01): 104 -105 .  DOI: 10.3969/j.issn.1000-1182.2011.01.026