大直径种植体修复单个磨牙的疗效分析  

Clinic Study on Larger-Diameter Implants Placed in Single Molar

作　　者：徐淑兰[1] 周磊[1] 黄建生[1] 宋光保[1] 徐世同[1] 张雪洋[1] 吴颖[1] 

机构地区：[1]广东省口腔医院种植中心,510280

出　　处：《中国口腔种植学杂志》2006年第3期113-115,共3页Chinese Journal of Oral Implantology

摘　　要：目的:评价大直径种植体修复缺失单个磨牙的临床效果,并对疗效加以讨论。方法:对187个单个磨牙缺失的患者植入255枚根形、直径为5.5mm或6.5mm的Frialit-2种植体,其中42枚为即刻种植,53枚种植体植入时联合采用了上颌窦提升术。255枚种植体中上颌植入112枚,下颌植入143枚。二期手术在种植3-6个月完成,种植修复完成后6、12、24、36、48个月,分别对种植体进行临床和X光检查,并对种植体的稳定性、种植体颈部骨组织改建的情况、基台螺丝的松动及种植体周围软组织进行检查随访。结果:二期手术时,255枚种植体中除上颌3枚即刻种植体未形成骨整合外,其余种植体均形成了良好的骨结合,种植体成功率98.4%。种植修复12个月后,种植体颈部骨吸收约0.18±0.05mm;48个月颈部骨吸收0.08±0.02mm。3例患者的5枚种植体的基台螺丝松动。结论:大直径种植体具有较标准种植体更接近天然牙解剖特点和符合义齿机械力学原则的优势,对于缺失磨牙的种植修复,大直径种植体可获得较好的远期效果。Object：the aim of this study was to evaluate the success rates of root-type titanium implants with large diameter that placed in single molar.Methods：187 partially posterior edentulous patients,were placed 255 larger diameter（Φ5.5mm or Φ6.5mm） , 112 of 255 implants were placed into posterior maxillae,and 143 of 255 implants into posterior mandibules.Intraoral radiographs and follow-up examinations,from six months to 48 months up to 4 years.Results：At second-stage surgery,3 of 255 implants were failed,252 of 255 implants were intergration. The implant success rate was 98.4%. The abutment screws of 5 implants were loose after 4 years. Conclusion：larger diameter implants place in posterior regions provided predictable long-term results.

关 键 词：大直径种植体 单个磨牙 

分 类 号：R783.4[医药卫生—口腔医学]