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Clin Oral Invest:不同混合技术和放置方法对MTA的X射线分析的影响

2018-04-25 MedSci MedSci原创

本研究的目的是评估各种混合技术的效果,以及使用X射线衍射(XRD)分析超声波对三氧化二铁聚集体(MTA)水合作用的影响。

本研究的目的是评估各种混合技术的效果,以及使用X射线衍射(XRD)分析超声波对三氧化二铁聚集体(MTA)水合作用的影响。

将1克ProRoot MTA,MTA Angelus粉末与0.34克蒸馏水混合。通过在4500rpm下胶囊机械混合30秒或通过手动混合,然后施加3.22MPa的压制压力1分钟。以最小的压力将混合物转移到XRD样本架中。一半的样本采用间接的超声波活化。所有标本在37℃和100%湿度下孵育4天,通过XRD分析。使用国际衍射数据中心(ICDD)的搜索匹配软件完成相位识别。

结果:所有样本均包含硅酸三钙,碳酸钙和氧化铋。在所有ProRoot标本中形成氢氧化钙相,而在MTA Angelus组中,仅在样本中机械混合并且通过超声处理才发现。

在MTA的水合特性方面,机械混合+超声处理并不具有显着的缺点。

原始出处:

F. B. Basturk, et al. X-ray diffraction analysis of MTA mixed and placed with various techniques.Clinical Oral Investigations. 2018 May. doi:10.1007/s00784-017-2241-9

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    2019-03-16 medsci256
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    2018-06-13 heli0118
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    2018-04-27 liuxiaona

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