上颌窦侧壁抬升植骨种植的临床研究

Clinical Study of Maxillary Sinus Lift and Placement of Implants with Bone Graft

目的:探讨应用上颌窦侧壁抬升植骨方法进行种植的优缺点和近远期效果。方法:2000年1月至2006年12月对28例患者行上颌窦侧壁抬升植骨种植。上颌窦底提升高度6.9mm-14.7mm,平均11.2mm。采用人工骨Bio-Oss或自体血提取的富血小板血浆(platelet-richplasma,PRP)与人工骨Bio-Oss混合填入上颌窦,用可吸收性胶原膜Bio-Gide覆盖。共抬升32侧,植入种植体57枚,均采用固定修复。种植后追踪时间9-62个月,平均28个月。观察方法为临床检查和X线检查,采用Wheeler存留标准评估,纳入Kaplan-Meier存留曲线统计。结果:在随访过程中,一颗植体在植入7个月后松动最终取出,其余植体稳定性良好,使用正常,患者满意,据Wheeler存留标准统计存留率为98.2%。结论:当上颌后牙区牙齿缺失且余留骨量不足时,通过上颌窦侧壁开窗抬升植骨可以有效增加骨高度,满足种植的骨条件,近远期效果理想。

Objective：To study the effect of maxillary sinus lift and placement of implants with bone graft. Methods：28 patients have suffered the maxillary sinus lift,bone graft and implants have been placed from Jan.2000 to Dec.2006.The mean lifting-height was 11.2mm （6.9mm-14.7mm）,57 implants were placed at all.All are fixed prostheses.The mean follow-up time was 28 months（9-62months）.Clinical examination and X-ray films were conducted.The results were evaluated with Wheeler＇s survival criteria. Results：One implant was taken out after been placed 7 months,56 implants have been used very well from been placed to now.27 patients were satisfied.The implant survival rate was 98.2% according to Wheeler＇s survival criteria. Conclusion： maxillary sinus lift and placement of implants with bone graft is a very reliable clinical technique to the patients suffered the loss of Maxillary posterior teeth without enough bone height.