Becktor Jonas P, Isaksson Sten, Sennerby Lars
Division of Oral and Maxillofacial Surgery, Maxillofacial Unit, Specialisttandvården, Länssjukhuset, Halmstad, Sweden.
Int J Oral Maxillofac Implants. 2007 Jul-Aug;22(4):603-8.
The aim of this study was to analyze the survival rate of endosseous implants placed in the partially dentate maxilla treated with sinus inlay block bone grafts.
Seventeen patients were subjected to bone augmentation procedures prior to or in conjunction with implant placement. Bone volumes were regarded as insufficient for implant treatment unless a bone grafting procedure was performed. The patients were treated with sinus inlay block bone grafts and endosseous implants in a 1- or 2-stage procedure. A total of 69 implants were placed in the patients who were followed for 29 to 101 months (mean, 53.1 months). The retrospective patient group was also prospectively followed using a standardized clinical and radiographic study design.
The implant survival rate was 91.3% (63/69). All implants were lost during the period from abutment connection to connection of the definitive prosthesis. All bone grafts were stable. Bone grafts supported 48 implants, of which 5 failed (10.4%). In the residual bone, 21 implants were placed, of which 1 failed (4.8%). All patients received a fixed partial prosthesis, which was stable during the follow-up period.
The results of this investigation revealed a satisfactory clinical outcome of implant placement in grafted partially dentate maxillae after a mean follow-up of 53.1 months.
本研究旨在分析在上颌部分牙列缺损患者中，采用上颌窦内提升块状骨移植术后植入的骨内种植体的存活率。
17例患者在种植体植入前或植入时接受了骨增量手术。除非进行骨移植手术，否则骨量被认为不足以进行种植治疗。患者采用1期或2期手术，接受上颌窦内提升块状骨移植和骨内种植体植入。共为这些患者植入69枚种植体，随访时间为29至101个月（平均53.1个月）。回顾性患者组也采用标准化临床和影像学研究设计进行前瞻性随访。
种植体存活率为91.3%（63/69）。所有种植体均在基台连接至最终修复体连接期间脱落。所有骨移植均稳定。骨移植支持48枚种植体，其中5枚失败（10.4%）。在剩余骨中植入21枚种植体，其中1枚失败（4.8%）。所有患者均接受了固定局部义齿修复，随访期间义齿稳定。
本研究结果显示，在平均随访53.1个月后，在上颌部分牙列缺损患者经骨移植后的种植体植入取得了令人满意的临床效果。
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