van der Sluis, L W M An evaluation of the influence of passive ultrasonic irrigation on the seal of root canal fillings. [electronic resource] - International endodontic journal May 2007 - 356-61 p. digital Publication Type: Evaluation Study; Journal Article ISSN: 0143-2885 Standard No.: 10.1111/j.1365-2591.2006.01227.x doi Subjects--Topical Terms: Dental Leakage--prevention & controlRoot Canal Irrigants--therapeutic useRoot Canal Therapy--methodsStatistics, NonparametricUltrasonic Therapy--methods