口内法により摘出即時再建を行った下顎エナメル上皮腫症例におけるインプラントの応用 Application of dental implants after intraoral resection and immediate bone grafting in patients with mandibular ameloblastoma
Ameloblastoma often tends to infiltrate or recur, although it is a benign tumor with slowly expansive growth. Based on these features, extensive surgical resection similar to that for malignant tumors is considered the treatment of choice. However, such treatment sometimes results in functional and aesthetic disorders. This article describes three female patients with mandibular ameloblastoma who underwent marginal resection and mandibular reconstruction with bone grafts by an intraoral approach. The mandibular defect was repaired with an iliac bone graft combined with particulate cancellous bone and marrow in two patients, and with chin bone in one patient. About 7 months after the operation, endosseous implants were placed. After confirming osseointegration (about 6.5 months later), abutments were placed, and prosthetic reconstruction was carried out. In all patients, masticatory function was well restored by dental implants in the grafted bone, and good aesthetic results were achieved. We believe that intraoral resection and reconstruction with a bone graft followed by application of dental implants is one of the treatments of choice for mandibular ameloblastoma.
日本口腔外科学会雑誌 50(12), 785-788, 2004-12-20
Japanese Society of Oral and Maxillofacial Surgeons