Materials:植体周围组织对表面处理氧化锆植入物的反应

2020-02-15 不详 网络

氧化钇稳定的四方氧化锆多晶体(Y-TZP)(部分稳定的氧化锆)已用于制造牙科植入物。本研究旨在开展动物实验探究种植体周软组织附着,胶原纤维在不同表面条件下对氧化锆的取向以及骨骼反应。氧化锆植入物表面分别经过紫外线照射(UV),大粒度喷砂和氢氟酸蚀刻(blastedHF)以及blastedHF和UV(blastedHF + UV)处理。结果显示,喷砂HF处理和喷砂HF + UV处理的氧化锆表面变得粗

氧化钇稳定的四方氧化锆多晶体(Y-TZP)(部分稳定的氧化锆)已用于制造牙科植入物。本研究旨在开展动物实验探究种植体周软组织附着,胶原纤维在不同表面条件下对氧化锆的取向以及骨骼反应。

氧化锆植入物表面分别经过紫外线照射(UV),大粒度喷砂和氢氟酸蚀刻(blastedHF)以及blastedHF和UV(blastedHF + UV)处理。

结果显示,喷砂HF处理和喷砂HF + UV处理的氧化锆表面变得粗糙且亲水。经喷砂处理的HF + UV表面似乎具有超亲水性。随后,将锥形圆柱形氧化锆植入物置于大鼠上颌磨牙的牙槽窝中。blastedHF和blastedHF + UV处理过的植入物的骨与植入物的接触比率显著高于未处理的对照组和UV处理的植入物。四种不同的经过表面处理的氧化锆植入物表现出紧密的软组织附着。与对照和UV处理的植入物相比,喷砂HF和喷砂HF + UV植入物的氧化锆植入物的垂直向胶原纤维更为突出。喷砂HF + UV处理的植入物的垂直向胶原纤维最大,软组织附着面积最大。

综上所述,该研究结果表明,喷砂HF + UV处理可能有助于确保氧化锆植入物的更大的软组织附着。

原始出处:

Iinuma Y, Hirota M, et al., Surrounding Tissue Response to Surface-Treated Zirconia Implants. Materials (Basel). 2019 Dec 19;13(1). pii: E30. doi: 10.3390/ma13010030.

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