摘要目的探讨颌骨内置式牵引种植体(DID)在下颌骨功能重建中的应用.方法我们设计了包含永久种植体和暂时性牵引器的牵引种植体.此牵引器特别为腓骨垂直牵引重建下颌骨缺损而设计.共完成8例下颌骨缺损重建(25个DID),其中2例成釉细胞瘤,2例下颌骨囊肿,1例骨纤维异常增殖症,其余3例为恶性肿瘤(6例男性,2例女性).结果随访2-15个月, 7例患者治疗成功,临床检查及X线检查示正常下颌骨外形及种植体良好的骨结合.1例患者出现局部感染,取出2个牵引种植体.2例患者完成义齿修复.结论颌骨内置式牵引种植体可用于下颌骨功能性重建,种植体植入与牵引同期完成缩短了手术周期.

abstractsObjective To study the application of dental implant distractor (DID) in mandibular functional reconstruction. Methods We designed a new device named DID, which includes the permanent dental implant and the temporary distractor in itself. It is specially designed for fibula wider distraction in mandible reconstruction. Twenty-five sets of DID devices were put into 8 patients (6 men and 2 women) during operation. Two patients suffered from ameloblastoma of the mandible, 2 from odontogenic cyst of the mandible, 1 from fibrous dysplasia, and the other 3 from malignant tumor of the mandible. The age of 8 patients ranged from 19 to 67 (mean 46.8) years. Results During postoperative 2-15 months follow up, 7 patients were found to be successful. The clinical examination and X-ray film showed the normal shape of the mandible and the osteointegration of the implants were solid enough to withstand the denture force. Others had the DID removed because of inflammation. Two of the patients successfully worn the fixed dental prosthesis. The outcomes was satisfying. Conclusion The DID device specially designed for mandibular reconstruction with fibular flap can help to simplify convenient procedures to a single surgery.