Valentini Pascal, Abensur David J
Department of Health Sciences and Human Biology, Faculty of Sciences, University of Corsica, Grossetti Campus, Corte, France.
Int J Oral Maxillofac Implants. 2003 Jul-Aug;18(4):556-60.
The aim of the present retrospective study was to evaluate the survival rate of titanium plasma spray-coated cylindric and machined screw-type implants placed in sinuses grafted with anorganic bovine bone mixed with demineralized freeze-dried bone allograft (DFDBA) or with anorganic bovine bone alone.
The patients included in this study were treated with a 1- or 2-stage technique, according to the volume of residual bone. This determined the possibility of primary stabilization and the duration of the treatment, which was 9 or 12 months, respectively.
The overall implant survival rate was 94.5% after a mean functioning period of 6.5 +/- 1.9 years. The Implant survival rate was better in sinuses grafted with anorganic bovine bone alone than with a mixture of anorganic bovine bone with DFDBA (96.8% versus 90%). The implant survival rate was similar for cylindric and screw-type implants in sinuses grafted with anorganic bovine bone alone.
Because of the good bone quality, the implant survival rate was similar for cylindric and screw-type implants in sinuses grafted with anorganic bovine bone.
Anorganic bovine bone used alone appears to be a suitable material for sinus floor augmentation.
本回顾性研究的目的是评估在植入了与脱矿冻干骨同种异体移植物（DFDBA）混合的无机牛骨或单独使用无机牛骨进行移植的鼻窦中，钛等离子喷涂圆柱形和机加工螺旋型种植体的存活率。
本研究纳入的患者根据剩余骨量采用一期或二期技术进行治疗。这决定了一期稳定的可能性和治疗持续时间，分别为9个月或12个月。
在平均6.5±1.9年的功能期后，总体种植体存活率为94.5%。单独使用无机牛骨移植的鼻窦中的种植体存活率优于无机牛骨与DFDBA混合移植的鼻窦（96.8%对90%）。在单独使用无机牛骨移植的鼻窦中，圆柱形和螺旋型种植体的存活率相似。
由于骨质量良好，在植入无机牛骨的鼻窦中，圆柱形和螺旋型种植体的存活率相似。
单独使用无机牛骨似乎是一种适合用于鼻窦底提升的材料。
