J Endod:镍钛、M-Wire和Gold Wire器械根管成形的比较

2018-11-18 lishiting MedSci原创

这篇研究的目的是为了比较和评估镍钛、M-Wire和Gold wire器械在不同根管疏通技术下的根管成形能力。

这篇研究的目的是为了比较和评估镍钛、M-Wire和Gold wire器械在不同根管疏通技术下的根管成形能力。

研究将拔出的人上颌磨牙135个近中根管随机平均分为3组(N = 45),分别使用以下器械疏通根管:K-files (KF) (Dentsply Sirona, Ballaigues, Switzerland), One G (OG)锉(Micro-Mega, Besançon, France)和ProGlider (PG)锉(Dentsply Sirona)。再将每个疏通锉组按照预备器械的不同平均分为3组:ProTaper Next (PTN, Dentsply Sirona), One Shape (OS, Micro-Mega)和WaveOne Gold (WOG, Dentsply Sirona) systems (n = 15)。采用micro-CT影像分析在预备前和成形后对牙齿进行扫描,比较根管根尖、根中和根上部的中心率、偏移值和根管体积的整个变化。数据进行统计学分析(analysis of variance and Kruskal-Wallis H检验)。

结果显示,各组在所有水平上的中心率均相似。K/OS和K/PTN的根尖偏移明显增高(P = .003)。K/PTN, K/OS和OG/OS在根中的偏移明显增高(P = .0003)。K/PTN和K/OS在根管冠端的偏移明显增高(P = .011)。PTN组根管体积变化最为明显,而最低的为PG/WOG (P = .06)。

结论:采用Gold wire制作的WOG配合PG展现出更好的根管成形能力,并且切割根管壁牙本质更少。镍钛(OS)和M-Wire (PTN)器械配合KF会导致更多的根管偏移。在不考虑GPP技术时,PTN切割根管壁牙本质最多。

原始出处:

van der Vyver PJ, Paleker F, et al. Root Canal Shaping Using Nickel Titanium, M-Wire, and Gold Wire: A Micro-computed Tomographic Comparative Study of One Shape, ProTaper Next, and WaveOne Gold Instruments in Maxillary First Molars. J Endod. 2018 Nov 13. pii: S0099-2399(18)30657-5. doi: 10.1016/j.joen.2018.09.013.

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    2019-10-12 30397613
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    2018-11-20 小刀医生
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