Dental implants are a treatment option for edentulous spaces. Placing implants involves a surgical procedure requiring a high level of attention to detail. There are risks associated with implants, such as peri-implantitis, failure of osseo-integration and peri-apical implantitis. The latter condition can present after implant placement, and presents radiographically as a radiolucency around the apical part of the implant, similar in appearance to a peri-apical lesion of a non-vital tooth. The aetiology of this condition remains controversial. This article presents some of the current literature and the case report demonstrates the successful surgical management of peri-apical implantitis. CPD/Clinical Relevance: The presentation, potential aetiologies and the successful clinical management of peri-apical implantitis can be useful to clinicians.