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Biomed Res Int：弹性特性种植牙在支撑骨上的生物力学后果：有限元分析

2020-03-04 不详 网络

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本研究旨在评估牙科种植体制造材料的弹性特性如何影响植入物周围骨负荷转移应力和应变的大小和分布。进行了三维（3D）有限元分析，使用的模型是下颌骨的一部分，在单个种植体中的钛基台上包含一个粘结的烤瓷冠。比较了以下三种合金：刚性（Y-TZP），常规（Ti-6Al-4V）和超弹性（Ti-Nb-Zr）。在中心窝相对于植入物的轴向轴线成6°的位置测试了150 N的静载荷。结果表明，对于所研究的三种合金中的任何

本研究旨在评估牙科种植体制造材料的弹性特性如何影响植入物周围骨负荷转移应力和应变的大小和分布。

进行了三维（3D）有限元分析，使用的模型是下颌骨的一部分，在单个种植体中的钛基台上包含一个粘结的烤瓷冠。比较了以下三种合金：刚性（Y-TZP），常规（Ti-6Al-4V）和超弹性（Ti-Nb-Zr）。在中心窝相对于植入物的轴向轴线成6°的位置测试了150 N的静载荷。

结果表明，对于所研究的三种合金中的任何一种，骨骼的应力和变形分布均无差异，主要集中在植入物周围的皮质层。但是，在传递到支撑骨的应力大小上存在差异，其中最坚硬的合金（Y-TZP）将最小的应力和变形传递到皮质骨。

总之，该研究结果表明，牙科种植体制造材料对转移到植入物周围骨的应力和变形的大小有影响。

原始出处：

Esteban Pérez-Pevida,  Aritza Brizuela-Velasco, et al., Biomechanical Consequences of the Elastic Properties of Dental Implant Alloys on the Supporting Bone: Finite Element Analysis. Biomed Res Int. 2016; 2016: 1850401. doi: 10.1155/2016/1850401

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    2021-01-31 huangdf

    #种植#

    0

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    2020-03-25 jiangjun073

    #元分析#

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    2020-08-22 sunylz

    #Bio#

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    2020-03-06 ms3994565386320060

    #Med#

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