Chiapasco M, Romeo E, Vogel G
Head Unit of Oral Surgery, Dental School, S. Paolo Institute of Biomedical Sciences, University of Milano, Milan, Italy.
Int J Oral Maxillofac Implants. 1998 May-Jun;13(3):394-9.
The possibility of placing endosseous implants in the edentulous maxilla is frequently reduced by inadequate bone volume of the residual ridge. In totally edentulous maxillae with knife-edge conformation, insufficient thickness is frequently associated with insufficient height of the residual ridge in the posterior maxilla because of pneumatization of the maxillary sinuses. This surgical method combines grafting of the maxillary sinuses, onlay grafts on the buccal side of maxillary posterior segments, and sagittal osteotomy of the anterior maxilla with interpositional bone grafts. Five to six months after maxillary reconstruction, Brånemark implants were placed and, after osseointegration occurred, implant-supported dental prostheses were fabricated. Three patients have been treated with this method and 22 implants have been placed. The mean follow-up after final prosthetic rehabilitation has been 16 months; survival rate has been 100%. Despite the small number of patients and the short follow-up, preliminary results have shown very promising results.
由于剩余牙槽嵴骨量不足，在上颌无牙区植入骨内种植体的可能性常常降低。在呈刃状形态的全上颌无牙区，由于上颌窦气化，上颌后部剩余牙槽嵴厚度不足常常与高度不足相关。这种手术方法结合了上颌窦植骨、上颌后段颊侧贴附植骨以及上颌前部矢状骨切开术并植入间置骨块。上颌重建术后五到六个月，植入Brånemark种植体，待骨结合发生后，制作种植体支持的假牙。三名患者接受了这种治疗方法，共植入22枚种植体。最终修复后的平均随访时间为16个月，存留率为100%。尽管患者数量较少且随访时间较短，但初步结果显示前景非常乐观。
