J Endod:未发育成熟牙齿不同牙髓治疗和修复方式下的抗折强度

2020-07-26 lishiting MedSci原创

这篇体外研究的目的是为了评估牙髓治疗和修复方法是否对未发育完成牙髓坏死前牙的抗折能力具有一定的影响。

这篇体外研究的目的是为了评估牙髓治疗和修复方法是否对未发育完成牙髓坏死前牙的抗折能力具有一定的影响。

研究在开髓以及清理和成形后,将80个样本按照髓腔封闭和冠方修复方法的不同随机分为5组:A1-根尖诱导成形术以及冠方的复合树脂修复,A2-根尖诱导成形术以及冠方和根内3 mm复合树脂修复,组IR-即刻血运重建以及冠方的复合树脂修复,组SR-逐步血运重建以及冠方的复合树脂修复,对照组(CG)-发育完成的牙齿通过牙胶充填后的冠方复合树脂修复。将牙齿包埋于丙烯酸树脂内并通过通用测试机施加压力直至破裂。记录折裂强度和折裂部位。

结果显示,5组折裂强度间无显著性差异(one-way ANOVA, F = .545, df = 4, p = .703)。并且,各组折裂部位间也无显著性差异(X2=4.1 df=4 p=.391)。

结论:基于此项体外研究的条件,应用于无活力未发育成熟牙齿的牙髓治疗方法对于牙齿来说均获得相似的抗折强度。

原始出处:

Isabel Mello, Pierre-Luc Michaud, et al. Fracture Resistance of Immature Teeth Submitted to Different Endodontic Procedures and Restorative Protocols. J Endod., 2020 Jun 29;S0099-2399(20)30426-X. doi: 10.1016/j.joen.2020.06.015.

 

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    2020-11-15 jxrzshh
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    2020-07-28 12543f43m99暂无昵称

    学习

    0

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    2020-07-28 neurowu
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    2020-07-28 zhouqu_8
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    2020-07-27 12543f43m99暂无昵称

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    2020-07-26 juanzi116

    这篇体外研究的目的是为了评估牙髓治疗和修复方法是否对未发育完成牙髓坏死前牙的抗折能力具有一定的影响

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