J Endod:GentleWave系统对人磨牙再治疗去除牙胶/封闭剂的效果分析

2019-05-03 lishiting MedSci原创

牙髓再治疗的目的是为了纠正导致初次治疗失败的病因。为了达到这一目的,必须将之前的充填内容物去除。这篇研究的目的是为了比较和评估side-vented needle, EndoVac和GentleWave (Sonendo, Inc, Laguna Hills, CA)冲洗方案去除原根管内封闭物(牙胶和封闭剂)的效果。

牙髓再治疗的目的是为了纠正导致初次治疗失败的病因。为了达到这一目的,必须将之前的充填内容物去除。这篇研究的目的是为了比较和评估side-vented needle, EndoVac和GentleWave (Sonendo, Inc, Laguna Hills, CA)冲洗方案去除原根管内封闭物(牙胶和封闭剂)的效果。

研究对30颗新鲜拔除的人下颌磨牙进行预备,主锉预备至20.06号,采用连续波加压配合AH Plus sealer (Dentsply Tulsa, Tulsa, OK)进行根管充填,随后冠端充填并至于PBS中7天。再治疗采用冠向下法,主尖锉使用20.04号。通过X线和micro-CT影像观察评估剩余封闭材料的存在与否。牙齿按照治疗的不同随机分为以下各组:a side-vented needle, EndoVac或GentleWave组。经过严格的冲洗程序后,获取冲洗后micro-CT扫描结果,并计算移除充填材料的剩余百分比。

结果显示,GentleWave (26%)比side-vented needle (16%)和EndoVac (9%)移除更多的充填材料;然而,GentleWave与其他2组之间未存在显著性差异(P > .05)。而side-vented needle和EndoVac之间存在明显不同(P = .04)。

结论:没有任何一种冲洗技术可以完全去除根管内充填物。side-vented needle和GentleWave比EndoVac平均去除更多的残留充填物;然而,它们之间没有显著性差异。

原始出处:

Wright CR, Glickman GN, et al. Effectiveness of Gutta-percha/Sealer Removal during Retreatment of Extracted Human Molars Using the GentleWave System. J Endod. 2019 Mar 30. pii: S0099-2399(19)30118-9. doi: 10.1016/j.joen.2019.02.009.

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    2019-05-05 whmdzju
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    2019-05-04 CHANGE

    疗效只是效果的众多方面之一,还要看对患者的获益,包括生活质量等因素共同决定效果的

    0

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