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J Peiodontol:纳米管钛种植体和基台周围组织的评估

2020-05-31 网络 网络

在种植体表面添加纳米管可能通过增加周围细胞与种植体表面的相互作用来提高生物利用度、生物活性和生物相容性。

在种植体表面添加纳米管可能通过增加周围细胞与种植体表面的相互作用来提高生物利用度、生物活性和生物相容性。

关于种植体表面纳米管与口腔软硬组织的相互作用知之甚少。本研究的目的是在组织学和放射学水平上评估犬模型中牙科种植体表面纳米管对软硬组织的定性和定量作用。

实验分为三组,包括实验和对照种植体和基台的组合(A组:对照种植体/对照基台,B组:对照种植体/实验基台:C组:实验种植体/实验基台)应用于6个大型犬的无牙颌中。采用计算机生成的随机化图表来确定种植体的植入的位置。在拔牙窝愈合3个月之后开始种植。基线时,将种植体和基台种植在下颌骨的一侧,并在第10周种植在下颌骨的另一侧。12周后处死实验动物。利用定量和定性分析组织学和放射学上测量新形成的软组织和硬组织。

结果发现,从第0-12周,种植体组的边缘骨水平的平均放射学变化无统计学意义(P> 0.05)。A,B和C组的平均软组织量(结合上皮+结缔组织)分别为2.29、2.33和2.31 mm,两组之间无统计学差异(P> 0.05)。无论种植体的表面处理如何,所有结缔组织纤维都平行于基台方向。

因此,喷砂表面与纳米管机械加工切削表面比较时,种植体和基台周围硬组织和软组织的愈合是相似的。两者导致相似的软组织接触值以及结缔组织纤维方向。

原文出处:

Phillip W. Garrett,Hard and soft tissue evaluation of titanium dental implants and abutments with nanotubes in canines, journal of periodontology,2020 April,doi:10.1002/JPER.18-0205

 

 

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    2020-08-17 30397613
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    2020-07-03 feather89
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    2020-12-23 Zx胡医生

    喷砂表面与纳米管机械加工切削表面比较时,种植体和基台周围硬组织和软组织的愈合是相似

    0

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    2020-07-02 huangdf
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