Blomqvist J E, Alberius P, Isaksson S
Department of Oral and Maxillofacial Surgery, Länssjukhuset, Halmstad, Sweden.
Int J Oral Maxillofac Implants. 1998 Nov-Dec;13(6):758-66.
The aim of this prospective study was to evaluate the results of 2-stage maxillary sinus reconstruction using titanium implants placed into iliac corticocancellous bone blocks previously grafted to the floor of sinuses. Fifty consecutive patients received 314 Brånemark implants of varying lengths; 202 implants were placed in the grafted bone and 112 were placed in the adjacent anterior maxillary alveolar process, which had received buccal onlay bone grafts. Follow-up time was 9 to 48 months after implant placement, which was accomplished 5 months after bone grafting. Eighty-four percent of the implants were integrated into the grafted sinuses and 75% were integrated into the anterior graft. Six patients (12%) lost implants in strategic positions, leading to secondary implant placement prior to fabrication of fixed prostheses. Thirty-eight patients (76%) received fixed prostheses. Only 5 individuals (10%) attained permanent implant-anchored overdentures. One patient lost all implants. The total implant survival rate (80.9%) and the survival rate of the fixed prostheses (100%) compare favorably with other reports.
这项前瞻性研究的目的是评估两阶段上颌窦重建的结果，该重建使用钛种植体植入预先移植到上颌窦底部的髂骨皮质松质骨块中。连续50例患者接受了314枚不同长度的Brånemark种植体；202枚种植体植入移植骨中，112枚种植体植入接受了颊侧贴附式骨移植的相邻上颌前牙槽突。种植体植入时间为骨移植后5个月，随访时间为种植体植入后9至48个月。84%的种植体与移植的上颌窦骨整合，75%的种植体与前部移植骨整合。6例患者（12%）在关键位置的种植体丢失，导致在制作固定修复体之前进行二次种植体植入。38例患者（76%）接受了固定修复体。只有5例患者（10%）获得了永久性种植体支持的覆盖义齿。1例患者的所有种植体均丢失。总的种植体存留率（80.9%）和固定修复体的存留率（100%）与其他报告相比具有优势。
