Hori Minoru, Kaneko Katsuhiko, Harada Daisuke, Nakanishi Kouji, Tanaka Takayoshi, Ishii Teruhiko, Tanaka Hiroshi
Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Tokyo 101-8310, Japan.
J Oral Sci. 2003 Dec;45(4):227-32. doi: 10.2334/josnusd.45.227.
A case is reported of a 66-year-old woman who could not use a conventional, full upper denture because of a gag reflex. In the maxillary alveolar ridge, restoration was performed on a moderately atrophied, edentulous anterior area and a small defect in the right-side posterior area. In the mandibular alveolar ridge, restoration was performed on a moderate osseous defect in each molar area resulting from tooth extraction due to severe periodontal disease. Based on careful treatment planning, four types of bone graft were used with previously designed osseointegrated implants. The atrophied maxillary alveolar ridge was restored with veneer iliac bone grafts to avoid fenestration during implant placement, while alveolar process deficiency was restored using inlay and sinus bone grafts as placements for long implant fixtures. The defects in the mandibular alveolar bone were filled with corticocancellous bone chips at the implant placement sites. A combination of immediate and secondary placement of Brånemark fixtures was used. Bone-anchored bridge-type implant prostheses were fitted approximately twelve months after surgery. Three years later, there had been no failure of implant fixtures and satisfactory functional and cosmetic restoration had been maintained.
报道了一例66岁女性患者，因存在恶心反射而无法使用传统的全口上假牙。在上颌牙槽嵴，对中度萎缩的无牙前区和右侧后区的一个小缺损进行了修复。在下颌牙槽嵴，对因重度牙周病拔牙导致的每个磨牙区的中度骨缺损进行了修复。基于精心的治疗计划，使用了四种类型的骨移植材料，并结合预先设计的骨结合种植体。对上颌萎缩的牙槽嵴采用髂骨皮质骨板移植进行修复，以避免种植体植入过程中出现开窗，而牙槽突缺损则采用嵌体和鼻窦骨移植作为长种植体固定装置的植入部位。在下颌牙槽骨缺损处，在种植体植入部位填充皮质松质骨碎片。采用了Brånemark种植体的即刻植入和二期植入相结合的方法。术后约十二个月安装了骨锚式桥型种植修复体。三年后，种植体固定装置没有出现失败情况，维持了令人满意的功能和美观修复效果。
