不同投照角度X线片诊断下颌第一前磨牙多根管的临床分析
何秉贞 王欢 尹兴喆 王倩倩 张成飞
Clinical Evaluation of Differ ent Angulation Radiogr aph in Diagnosing Multiple Canals of Mandibular Fir st Pr emolar s in vivo
WANG Huan, YIN Xing- zhe, WANG Qian- qian, ZHANG Cheng- fei
华西口腔医学杂志
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2007, (02): 156
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