J Endod:高速和无顺滑通道:一种全新方案增加XP Shaper在弯曲根管中的效率

2019-12-02 lishiting MedSci原创

这篇研究的目的是当采用高速模式(3000 rpm)以及未按照厂家建议实施顺滑通道时,评估XP-endo Shaper (XP; FKG, La Chaux-de-Fonds, Switzerland)在弯曲根管中的表现。

这篇研究的目的是当采用高速模式(3000 rpm)以及未按照厂家建议实施顺滑通道时,评估XP-endo Shaper (XP; FKG, La Chaux-de-Fonds, Switzerland)在弯曲根管中的表现。

研究对20颗拔除的人的具有独立近中弯曲根管的下颌磨牙进行配对以获得2个标准组(n = 20)。XP 1000组,手用锉预备至15号以获得顺滑通道,随后采用XP shaper按照厂家建议以1000 rpm进行旋转预备。XP 3000组,8号手用锉探查通畅根管后以3000 rpm进行旋转预备。记录操作时间、到达工作长度(WL)以及30/.04牙胶核与WL相比配的数量。通过micro-CT影像分析器械的预备能力,通过SEM观察分析锉针形变。数据通过analysis of variance和chi-square检验进行统计学评估,显著性水平设置为5%。

结果显示,XP 3000组预备时间更短,更多的到达WL (P < .05),进而促使牙胶核与根管匹配的比例更高(P < .05)。micro-CT数据显示,XP 3000组在根尖和根中1/3的锥度更大(P < .05),其他2组间未见明显差异。2组间器械形变未见明显不同。

结论:全新的XP使用参数设置(3000 rpm结合无顺滑通道)在体外预备弯曲根管看似比厂家建议的设置效率更高。

原始出处:

Webber M, Piasecki L, et al. Higher Speed and No Glide Path: A New Protocol to Increase the Efficiency of XP Shaper in Curved Canals-An In Vitro Study. J Endod. 2019 Nov 21. pii: S0099-2399(19)30784-8. doi: 10.1016/j.joen.2019.10.014.

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    2020-01-20 feather89
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