高度に吸収した下顎骨へのインプラント治療によって骨折をきたした1例

抄録

Endosseous implant of the mandible has been accepted as an alternative prosthetic treatment for edentulous patients. Unless an exact examination of the jawbone and the general condition is completed and an appropriate implant system is selected, the treatment will be unsuccessful. Herein we report a case of fracture of a highly absorbed mandible possibly due to dental implantation for a patient with osteoporosis.
A 78-year-old female was referred to our hospital for swelling of the left mandibular body region. X-ray showed remarkable atrophy of the mandible and a fracture line along the endosseous implants. The patient was diagnosed as osteoporosis of moderate grade based on measurement of the bone mineral density. The implants were removed, and after the granulation tissue of sockets was removed, the mandible was repositioned and fixed with titanium mini plates.
The prognosis of the fracture was satisfactory. A total denture was made 10 months after surgery by a dentist referred to our hospital.