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J Endod：1种全新的硅酸钙类封闭剂- Bio-C Sealer的理化特性评估

2019-08-30 lishiting MedSci原创

封闭剂理化特性
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已有报道显示，硅酸钙类材料适合用作根管治疗的根管封闭剂。这篇研究的目的是为了评估1种全新的硅酸钙类封闭剂(Bio-C Sealer; Angelus, PR, Brazil)的理化特性，并与硅酸钙牙髓封闭剂(TotalFill BC Sealer; FKG Dentaire SA, La Chaux-de-Fonds, Switzerland)和环氧树脂封闭剂(AH Plus; Dentsply

已有报道显示，硅酸钙类材料适合用作根管治疗的根管封闭剂。这篇研究的目的是为了评估1种全新的硅酸钙类封闭剂(Bio-C Sealer； Angelus， PR， Brazil)的理化特性，并与硅酸钙牙髓封闭剂(TotalFill BC Sealer； FKG Dentaire SA， La Chaux-de-Fonds， Switzerland)和环氧树脂封闭剂(AH Plus； Dentsply DeTrey， Konstanz， Germany)相比较。

固化时间和流动性按照ISO 6876的标准进行评估。材料放置于去离子水(1， 7， 14， and 21 days)中不同时间后进行pH值的检测。通过对毫米铝的X线影像分析评估材料的阻射性。在去离子水中放置30天后评估材料的溶解度和体积变化。溶解度通过物质流失进行计量(%)，体积变化通过micro-CT影像分析进行检测。数据通过variance和Tukey statistical检验进行统计学评估(P < .05)。

结果显示，TotalFill BC Sealer和Bio-C Sealer具有相似的阻射性、体积变化程度和pH值(P > .05)。Bio-C Sealer的固化时间最短，而溶解性和流动性最高(P < .05)。AH Plus阻射性最高，流动性、pH值、溶解性以及体积变化最小(P < .05)。

结论：Bio-C Sealer固化时间短，具有碱性作用，并且拥有适当的流动性和阻射性以及较低的体积收缩变化。但是，此种封闭剂的溶解性明显高于ISO 6876标准的要求。

原始出处：

Zordan-Bronzel CL， Esteves Torres FF， et al. Evaluation of Physicochemical Properties of a New Calcium Silicate-based Sealer， Bio-C Sealer. J Endod. 2019 Aug 22. pii： S0099-2399(19)30513-8. doi： 10.1016/j.joen.2019.07.006.

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    2019-10-10 sunylz

    #Bio#

    0

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    2019-08-31 w363522449

    #理化特性#

    0

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    2020-03-04 szhvet

    #硅酸钙#

    0

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    2019-09-01 12498dd9m12暂无昵称

    #封闭剂#

    0

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