J Endod：Micro-CT观察评估使用新的热处理镍钛系统后牙本质微裂纹的形成情况

2017-08-05 MedSci MedSci原创

这篇研究的目的是通过micro-CT观察分析在应用HyFlex CM (Coltène/Whaledent, Altstätten, Switzerland), HyFlex EDM (Coltène/Whaledent), Vortex Blue (Dentsply Tulsa Dental Specialties, Tulsa, OK)和TRUShape (Dentsply Tulsa Den

这篇研究的目的是通过micro-CT观察分析在应用HyFlex CM (Coltène/Whaledent， Altst？tten， Switzerland)， HyFlex EDM (Coltène/Whaledent)， Vortex Blue (Dentsply Tulsa Dental Specialties， Tulsa， OK)和TRUShape (Dentsply Tulsa Dental Specialties)系统进行根管预备后发生牙本质微裂纹的频率。

40颗人的下颌单直根管切牙按照预备系统的不同随机分为4个实验组(n = 10)和1个对照组：组1， HyFlex CM；组2， HyFlex EDM；组3， Vortex Blue；组4， TRUShape。应用高分辨率micro-CT成像技术在根管预备前后扫描分析牙齿样本。随后，捕获牙齿术前和术后的横断面影像检查是否存在牙本质裂隙。各组微裂纹的数量通过百分比表示。

根管预备前后，研究共观察分析了36，152张横断面影像。共发现4，452个(12.31%)牙本质裂隙。在使用测试的根管预备系统后，未发现新形成的微裂纹。

结论：使用HyFlex CM， HyFlex EDM， Vortex Blue和TRUShape系统对下颌切牙直根管进行预备后不会诱导形成新的微裂纹。

原始出处：

Bayram HM， Bayram E， et al. Micro-computed Tomographic Evaluation of Dentinal Microcrack Formation after Using New Heat-treated Nickel-titanium Systems. J Endod. 2017 Jul 27. pii： S0099-2399(17)30702-1. doi： 10.1016/j.joen.2017.05.024.

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#插入话题

插入图片

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2018-03-14 yahu

#热处理#

79 0
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2018-06-26 12498d2fm62(暂无昵称)

#镍钛#

90 0
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2018-01-18 xjy02

#Micro#

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2018-01-04 jiafufeng@yaho

#CRO#

80 0
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2018-05-16 30397613

#钛#

83 0
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2017-08-07 ms8538335253054589

#牙本质#

68 0
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2017-08-05 139****0239

henhao

112 0

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