Holtzman L
Int Endod J. 1998 Sep;31(5):364-6. doi: 10.1046/j.1365-2591.1998.00166.x.
The importance of an accurate diagnosis of the morphology of the root canal system is a prerequisite for successful root canal treatment and has been emphasized throughout the literature. Root canal morphology of premolar teeth, either maxillary or mandibular, and the discrepancies between first and second premolars, have been investigated and reported. A case report is presented of the root canal treatment of a mandibular second premolar with four root canals. As far as the reviewed literature revealed, up to three root canals in mandibular premolars have been reported. No previous report of a similar case of four root canals in a mandibular premolar was found.
准确诊断根管系统形态对于根管治疗的成功至关重要，这一点在整个文献中都得到了强调。上颌或下颌前磨牙的根管形态，以及第一和第二前磨牙之间的差异，都已得到研究和报道。本文报告了一例下颌第二前磨牙有四个根管的根管治疗病例。就所查阅的文献而言，下颌前磨牙中已报道最多有三个根管。未发现此前有下颌前磨牙有四个根管的类似病例报告。
