Frank A L
School of Dentistry, Loma Linda University, CA.
J Endod. 1990 Jul;16(7):339-41. doi: 10.1016/S0099-2399(06)81946-1.
A case history is presented with a large periapical lesion and a perforating resorption defect on a cuspid. Endodontic therapy was performed, presuming that the necrotic cuspid caused the inflammatory response. No radiographic healing was evident 18 months after endodontic therapy. Considerable healing was demonstrated 6 months later, following the extraction of an adjacent tooth with prior root canal therapy. It was concluded that the failing root canal therapy of the extracted tooth was the primary factor leading to the inflammatory lesion, the resorptive perforation of the adjacent tooth, and its pulpal necrosis. It has not been reported prior that inflammatory resorption can result from the pulpal necrosis of an adjacent tooth.
本文介绍了一个病例，该病例中尖牙存在一个大的根尖周病变和一个穿孔性吸收缺损。进行了根管治疗，推测坏死的尖牙引起了炎症反应。根管治疗18个月后，影像学上未见明显愈合。6个月后，在拔除一颗先前已进行根管治疗的邻牙后，显示出相当程度的愈合。得出的结论是，拔除牙齿根管治疗失败是导致炎症性病变、邻牙吸收性穿孔及其牙髓坏死的主要因素。此前尚未有报道称，邻牙牙髓坏死可导致炎症性吸收。
