Abstract
We report a case of Wegener's granulomatosis (WG) occurring in the gingiva, nasal cavity, and lung. The patient was a 42-year-old man who presented with painful gingival swelling. A definitive diagnosis of WG was made by biopsy of the gingiva, nasal mucosa, and lung. Immunosuppressants and steroids were very effective against painful swelling of the gingiva, lung, and nasal cavity. As WG easily worsens and recurs in the presence of infection, oral infection must be eliminated and prevented. We effectively controlled WG by active management of gingivitis and periodontitis in addition to administration of immunosuppressants and steroids.