Fabra-Campos H
School of Dentistry, University of Valencia, Spain.
J Endod. 1990 Jul;16(7):342-5. doi: 10.1016/S0099-2399(06)81947-3.
A case is presented in which endodontic treatment of a maxillary lateral incisor with a talon cusp and two root canals failed following a mistaken diagnosis. What was first diagnosed as an endodontic lesion was, in all probability, a primary periodontal lesion caused by the advance of bacteria from the gingival crevice to the apex along the radicular groove between the main tooth and the talon cusp.
本文报告一例上颌侧切牙伴畸形舌侧尖及两个根管，因误诊导致根管治疗失败的病例。最初被诊断为根管病变，很可能是原发性牙周病变，细菌沿主牙与畸形舌侧尖之间的根面沟从牙龈沟向根尖部蔓延所致。
