Osteonecrosis of the jaw as a late complication of herpes zoster infection: a case report.

Occurrences of rare oral complications following herpes zoster (HZ) infection have been reported. In the present case, a 57-year-old man was referred for periodontal evaluation due to gingival bleeding. His medical history included diagnoses of chronic lymphocytic leukemia and HZ infection. Intraoral examination revealed necrosis and alveolar bone exposure around the mandibular left lateral incisor, and the patient reported spontaneous exfoliation of the maxillary and mandibular left central incisors. Conservative surgical and antibiotic therapies were provided to the patient, and a diagnosis of osteonecrosis of the jaw following HZ infection was established. There were no signs of recurrence in 17 months of follow-up. Clinicians should be aware of unusual complications related to a previous HZ infection.