Problems and strategies of combined use of irrigation solution in root canal therapy

doi:10.3877/cma.j.issn.1674-1366.2026.01.011

Abstract

Abstract:

Root canal irrigation plays a vital role in root canal therapy. Due to the complexity of the root canal system, mechanical preparation alone cannot eradicate infections, so effective root canal irrigation is the critical factor for the success of root canal therapy. In clinical practice, a combination of irrigants is commonly employed to remove residual pulp tissue, the smear layer and residual microorganisms in the root canal system, so as to improve the cleaning effect of root canal irrigation. This article reviews the interaction and common problems between combined irrigants, and puts forward suggestions for the combined use strategy of root canal irrigants.

Key words: Root canal irrigation, Combined use, Root canal therapy

Yufan Zhang, Sui Mai. Problems and strategies of combined use of irrigation solution in root canal therapy[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2026, 20(01): 74-82.

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References 72

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冲洗组合方案	根管冲洗效果		混合风险	适应证	改进策略
冲洗组合方案	抗菌效果	清洁效果	混合风险	适应证	改进策略
NaClO+EDTA	清除生物膜	溶解组织残留物；去除玷污层	有效氯含量下降	细小钙化根管机械预备时；常规终末冲洗	交替冲洗；更换弱螯合剂；活化冲洗剂
NaClO+CHX	长期抗菌性清除生物膜	溶解组织残留物；玷污层去除效果差	产生PCA	感染严重根管和再治疗根管的终末冲洗	中间冲洗剂；活化冲洗剂
EDTA+CHX	长期抗菌性	去除玷污层；残留组织溶解能力差	产生白色沉淀	终末冲洗；临床应用较少	交替冲洗；更换弱螯合剂；活化冲洗剂

冲洗组合方案	根管冲洗效果		混合风险	适应证	改进策略
冲洗组合方案	抗菌效果	清洁效果	混合风险	适应证	改进策略
NaClO+EDTA	清除生物膜	溶解组织残留物；去除玷污层	有效氯含量下降	细小钙化根管机械预备时；常规终末冲洗	交替冲洗；更换弱螯合剂；活化冲洗剂
NaClO+CHX	长期抗菌性清除生物膜	溶解组织残留物；玷污层去除效果差	产生PCA	感染严重根管和再治疗根管的终末冲洗	中间冲洗剂；活化冲洗剂
EDTA+CHX	长期抗菌性	去除玷污层；残留组织溶解能力差	产生白色沉淀	终末冲洗；临床应用较少	交替冲洗；更换弱螯合剂；活化冲洗剂

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