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根管封闭剂的使用对严密的根管充填起着重要的作用。其封闭性能除了与其本身的理化性能相关外，还受很多其他因素的影响。特别是根管壁玷污层会降低牙本质的渗透性，阻碍封闭剂进入牙本质小管，从而影响根管充填的质量。因此，选用合适的方法对根管壁玷污层进行处理，使根管封闭剂与根管壁之间获得良好的结合非常关键。本文就不同根管壁处理方法对根管封闭剂性能的影响作一综述。“,”Root canal sealers are of great importance for tight obturation of root canal.The sealing ability of sealers depends on many factors in addition to the physical and chemical properties of themselves.Especially,the pres-ence of the smear layer can reduce the dentin permeability and prevent the penetration of sealers into the dentinal tu-bules,which consequently affect the quality of root canal obturation.To make a good seal between the root canal sealers and the root canal walls,it is critical to select appropriate methods for smear layer removal.In this paper,the effect of different root canal wall treatments on the properties of root canal sealers is reviewed.