Complete recovery from chronic implant-induced paresthesia after implant removal: a case report

Inferior alveolar nerve (IAN) injury is one of the most significant adverse outcomes of dental implantation. IAN injury can occur because of direct invasion of the mandibular canal, compression from implant placement, or postoperative hematoma formation. These injuries may result in prolonged neurosensory disturbances, and the prognosis largely depends on how quickly treatment is initiated. A 71-year-old male presented with persistent hypoesthesia, pain, and tinnitus in the left mandibular region of 6 years duration after implant placement. Clinical and radiographic examinations revealed peri-implantitis around the implant in the affected region. Neurosensory disturbances completely resolved after removal of the affected implant with peri-implantitis. This case highlights the fact that even long-standing inferior alveolar nerve injuries may be reversible if the underlying cause is resolved. Prompt recognition and elimination of etiologic factors such as implant-induced nerve compression in the presence of peri-implant pathology are crucial for achieving favorable recovery in patients with chronic IAN injury.