Department of Surgery, Division of Maxillofacial Surgery, General Hospital St. John Bruges, Ruddershove 10, 8000 Bruges, Belgium.
Int J Oral Maxillofac Surg. 2011 Sep;40(9):907-15. doi: 10.1016/j.ijom.2011.05.001. Epub 2011 Jun 11.
Implant-prosthetic rehabilitation of atrophic maxillae remains a challenging problem. The aim of this paper is to describe a novel treatment for functional rehabilitation of the atrophic maxilla and to discuss preliminary results of this treatment protocol. A prospective pilot study was carried out in 10 patients who underwent bony reconstruction of atrophic maxillae under general anaesthesia, with autologous calvarial bone grafts and simultaneous placement of six provisional implants. The provisional implants were loaded with a provisional acrylic bridge 1 day after surgery. After 6 months, the provisional implants were removed and final implants were placed under local anaesthesia, again in an immediate loading concept with a provisional bridge, followed by a final bridge after another 6 months of healing. The bone grafts integrated well in all 10 patients without infectious complications. The prosthetic survival of the provisional bridge at the time of placing the implants was 100%. All final implants could be placed and immediately loaded with a second provisional bridge. Patient satisfaction was high due to limited postoperative inconvenience and immediate fixed prosthetic rehabilitation. The preliminary results of this pilot study demonstrate that this treatment protocol is a well tolerated treatment for patients with maxillary atrophy desiring dental rehabilitation.
骨量萎缩的上颌骨种植修复仍然是一个具有挑战性的问题。本文旨在描述一种新的治疗方法，用于功能性修复萎缩的上颌骨，并讨论该治疗方案的初步结果。对 10 名患者进行了前瞻性试点研究，这些患者在全身麻醉下接受了上颌骨骨量萎缩的骨重建，使用自体颅骨骨移植物和同时放置六颗临时植入物。在手术后 1 天，临时植入物上加载了临时丙烯酸桥。6 个月后，去除临时植入物，在局部麻醉下放置最终植入物，再次采用临时桥的即刻负载概念，再经过 6 个月的愈合后放置最终桥。所有 10 名患者的骨移植物均与骨整合良好，无感染并发症。在放置植入物时，临时桥的修复体存活率为 100%。所有最终植入物都可以放置，并立即用第二个临时桥加载。由于术后不便和即刻固定修复，患者的满意度很高。该试点研究的初步结果表明，对于希望进行牙齿修复的上颌骨萎缩患者，该治疗方案是一种可耐受的治疗方法。
