J Endod:根管内冷冻疗法可以减轻有症状根尖周炎的术后疼痛:一项临床随机多中心试验

2017-10-31 lishiting MedSci原创

这项临床随机多中心试验的目的是为了评估使用冷生理盐水进行受控冲洗是否会降低牙髓坏死和有症状根尖周炎术后疼痛的强度和发生率。

这项临床随机多中心试验的目的是为了评估使用冷生理盐水进行受控冲洗是否会降低牙髓坏死和有症状根尖周炎术后疼痛的强度和发生率。

研究选取210名患者(存在坏死性融合根的牙齿,诊断为有症状的根尖周炎并且术前的直观类比标度(VAS)高于7)在完成根管成形和清理后随机分配至对照组或实验组。实验组的最终冲洗是将20 mL无菌冷(2.5°C)生理盐水注入一个无菌冷(2.5°C) Endovac显微插管(Kerr Endo, Orange Country, CA)中,随后将其导入根管至工作长度5 min。对照组也采用同样的方案,只是应用常温生理盐水。患者被告知记录自身出现疼痛的持续时间和程度以及止疼药物摄取的情况。采用logistic回归比较2组间术后疼痛的发生率和需要服用止疼药的情况差异;采用ordinal (linear) chi-square检验分析2组间一般疼痛强度的差异;采用Mann-Whitney检验评估2组在6, 24和72小时后的术后疼痛(以VAS标度记录的结果)以及止疼药物摄入情况的差异。

结果显示,对照组的患者存在明显增高的术后疼痛发生率、强度和药物摄入的需求(P < .05)。

结论:冷冻疗法可以减少牙髓坏死和有症状根尖周炎患者术后疼痛的发生率以及药物摄入的需求。

原始出处

Vera J, Ochoa J, et al. Intracanal Cryotherapy Reduces Postoperative Pain in Teeth with Symptomatic Apical Periodontitis: A Randomized Multicenter Clinical Trial. J Endod. 2017 Oct 24. pii: S0099-2399(17)31039-7. doi: 10.1016/j.joen.2017.08.038.

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    2017-11-02 zb1235672

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