Abstract
A case in which a 62-year-old female suffered acute lymphoblastic leukemia (ALL) during dental implant treatment is reported. Combined chemotherapy was used to treat the disease; severe stomatitis and necrosis of mucous membrane around the implants occurred, then one of seven implant fixtures installed was lost. Superstructures including abutments were removed to reduce stimulation as well as to enable cleaning, resulting in the implant fixtures being in the sleeping condition; the local treatment mentioned above could improve the mucosal condition. Not only because the implant patients are mostly aged, the clinicians must aware that unpredictable diseases such as ALL may arise during or after implant treatment, and also must prepare countermeasures.
