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The Effects Of Hydroxyapatite Coatings On Stress Distribution Near The Dental Implant-bone Interface

机译：羟基磷灰石涂层对种植体-骨界面附近应力分布的影响

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摘要

The effects of different thickness of hydroxyapatite (HA) coatings on bone stress distribution near the dental implant-bone interface are very important factors for the HA-coated dental implant design and clinical application. By means of finite element analysis (FEA), the bone stress distributions near the dental implant coated with different thicknesses from 0 to 200 μm were calculated and analyzed under the 200 N chewing load. In all cases, the maximal von Mises stresses in the bone are at the positions near the neck of dental implant on the lingual side, and decrease with the increase of the HA coatings thickness. The HA coatings weaken the stress concentration and improve the biomechanical property in the bone, however, in HA coatings thickness range of 60-120 μm, the distinctions of that benefit are not obvious. In addition, considering the technical reason of HA coatings, we conclude that thickness of HA coatings range from 60 to 120 μm would be the better choice for clinical application.
机译：不同厚度的羟基磷灰石（HA）涂层对牙种植体-骨界面附近骨应力分布的影响是HA涂层牙种植体设计和临床应用的重要因素。通过有限元分析（FEA），在200 N的咀嚼载荷下，计算并分析了涂覆有0至200μm不同厚度的牙科植入物附近的骨应力分布。在所有情况下，骨骼中最大的冯·米塞斯应力在舌侧的牙科植入物颈部附近的位置，并随着HA涂层厚度的增加而减小。 HA涂层减弱了应力集中并改善了骨骼的生物力学性能，但是，在60-120μm厚度的HA涂层中，这种好处的区别并不明显。此外，考虑到HA涂层的技术原因，我们得出结论，HA涂层的厚度范围为60至120μm是临床应用的更好选择。

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