Electrical and dye leakage comparison of three root-end restorative materials.

摘要: Objective: The purpose of this study was to assess three modern root-end restorative materials with electrical and dye leakage tests. Method materials: Thirty-three human canine teeth were prepared filled gutta-percha sealer. Stainless steel rods inserted into the root canals as anodes, varnished. apical 3 mm each tooth resected, 3-mm preparations made ultrasonically. Mineral trioxide aggregate, Super EBA, IRM used restore 10 each, varnished controls. Following 24 hours' setting in blood, specimens placed 1% potassium chloride electrolyte, recorded electrically for 70 days. then submerged methylene blue 72 hours, sectioned longitudinally, scored by six examiners. Results: In both tests, mineral aggregate restorations leaked significantly less than EBA restorations. showed did electrochemical test but not experiment. sealed performed similarly negative control teeth. Conclusion: results indicated that provides a superior seal