根管治疗的成败关键之一,是对根管数目和形态的解剖知识的了解。国外对根管形态有些调查研究,国内此文献报道较少,且大多局限于离体牙的研究。体内根管的X线研究,国内尚未见报道。本文主要通过两种X线摄片方法,对成人上颌第一前磨牙根管进行X线影像观察研究,以期为临床诊断治疗提供参考依据。 One of the keys to successful root canal therapy is understanding of the anatomy of the number and shape of the root canal. Some foreign research on the morphology of the root canal, the domestic literature less reported, and mostly confined to the study of isolated teeth. X-ray of the root canal in vivo, has not been reported in China. In this paper, we mainly study the X-ray images of the root canal of adult maxillary first premolar by two methods of X-ray radiography in order to provide a reference for clinical diagnosis and treatment.