活性表面种植体在同一植入位点不同骨结构的早期骨结合差异

发布时间：2018-03-27 13:07

本文选题：钛种植体　切入点：骨结合　出处：《广东医学》2014年11期

【摘要】：目的探讨具有活性表面的种植体在同一植入部位不同骨组织结构的早期骨结合的差异及机制。方法选择4只Beagle犬双侧胫骨的上段离骨骺线下约7 mm处为实验种植体的植入位点,植入喷砂加酸蚀处理的种植体共8枚,将位于皮质骨段的种植体螺纹定为A组,位于松质骨段的种植体螺纹定为B组。4周后取标本制作带种植体的骨组织切片进行观察,并比较两组种植体-骨结合率(BIC%)。结果 A、B两组均获得较好的骨结合效果,而A组的BIC%高于B组(P0.01)。结论同一植入位点时,皮质骨在种植体早期骨结合方面比松质骨具有更快的骨愈合能力,但松质骨可能为皮质骨的骨愈合补充了血液来源。
[Abstract]:Objective to investigate the difference and mechanism of early osseous binding of implants with active surface at the same site of different bone structures. Methods four Beagle dogs were selected as the implant sites about 7 mm below the epiphyseal line in the upper tibia of the bilateral tibia of 4 Beagle dogs. A total of 8 implants were implanted with sand blasting and acid etching. The implant threads located in cortical bone were selected as group A, and those in cancellous bone were selected as group B. After 4 weeks, specimens were taken to make bone tissue sections with implants for observation. Results the BIC% of group A was higher than that of group B, and the BIC% of group A was higher than that of group B. ConclusionsBIC% was higher in group A than that in group B at the same implantation site, and the ratio of BIC% in group A was higher than that in group B (P 0.01). Cortical bone has faster healing ability than cancellous bone in early implants, but cancellous bone may provide blood source for cortical bone union.
【作者单位】：广东省口腔医院;南方医科大学附属口腔医院牙周种植科;南方医科大学附属口腔医院颌面外科;南方医科大学附属口腔医院种植科;
【基金】：广东省医学科研基金资助项目(编号:B2012032) 广州市科技和信息化局应用基础研究专项项目(编号:2013J4100003)
【分类号】：R783.6

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