Kovács A F
Department of Maxillofacial Plastic Surgery, Frankfurt University School of Medicine, Germany.
Otolaryngol Head Neck Surg. 2000 Nov;123(5):598-602. doi: 10.1067/mhn.2000.107317.
Is bone loss associated with implants placed in vascularized iliac crest bone grafts for mandibular reconstruction dependent on the prosthetic restoration modalities used?
Eleven vascularized iliac crest bone grafts for mandibular reconstruction were examined after ablative tumor surgery. Forty implants loaded for at least 1 year were observed for up to 6 years. Horizontal and peri-implant bone loss was assessed for 2 groups: 6 patients with implant-supported bridges and 5 patients with implant-retained overdentures.
Horizontal bone loss reached a steady state around 2 mm after an observation time of 2 years. Bony pockets had a depth of less than 1 mm. The described pattern was nearly independent of the prosthetic restoration modality used. The implant survival rate was 97.6%.
Vascularized iliac crest bone grafts are safe implant-bearing areas. Implant-retained overdentures can be used with as good a longterm efficacy as the more complicated implant-supported bridges.
在下颌骨重建中，植入带血管蒂髂骨骨移植块的种植体骨量丢失是否取决于所使用的修复方式？
在肿瘤切除术后检查了11例用于下颌骨重建的带血管蒂髂骨骨移植块。观察了40枚负载至少1年的种植体，最长观察6年。对两组患者评估了水平和种植体周围骨量丢失情况：6例患者使用种植体支持的桥体修复，5例患者使用种植体固位的覆盖义齿修复。
观察2年后，水平骨量丢失在约2毫米处达到稳定状态。骨袋深度小于1毫米。所述模式几乎与所使用的修复方式无关。种植体存留率为97.6%。
带血管蒂髂骨骨移植块是安全的种植区。种植体固位的覆盖义齿可以像更复杂的种植体支持的桥体一样具有良好的长期疗效。
