Schirrmeister, J F Detectability of residual Epiphany and gutta-percha after root canal retreatment using a dental operating microscope and radiographs--an ex vivo study. [electronic resource] - International endodontic journal Jul 2006 - 558-65 p. digital Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0143-2885 Standard No.: 10.1111/j.1365-2591.2006.01126.x doi Subjects--Topical Terms: Dental Pulp Cavity--diagnostic imagingEpoxy Resins--chemistryGutta-Percha--chemistryHumansImage Processing, Computer-AssistedIncisorMicroscopy--instrumentationObserver VariationRadiography, DentalRetreatmentRoot Canal Filling Materials--chemistryRoot Canal Preparation--methodsRoot Canal Therapy--methodsSurface Properties