Int J Periodontics Restorative Dent. 2021 May-Jun;41(3):443-448. doi: 10.11607/prd.4837.
Retrograde peri-implantitis (RPI) is a periapical lesion that develops after implant insertion in which the coronal portion of the implant achieves a normal bone-to-implant interface. The most common etiology of RPI is the presence of an adjacent endodontic lesion. In most of the case reports available in the literature, the diagnosis of RPI occurred between 1 week and 4 years after implant placement. This case report illustrates the treatment of RPI that occurred more than 15 years after implant loading, caused by endodontic infection of the adjacent tooth.
逆行性种植体周围炎（RPI）是一种在种植体插入后发生的根尖周病变，其中种植体的冠部与骨形成正常的骨-种植体界面。RPI 最常见的病因是相邻的牙髓病变。在文献中大多数可获得的病例报告中，RPI 的诊断发生在种植体放置后 1 周到 4 年之间。本病例报告说明了在种植体负重 15 年以上后，由于邻牙的牙髓感染而发生的 RPI 的治疗。
