Aguilar, P.; Samerpark, T.; Nopphachatsatid, B. .; Krathong, K. Comparison of Debris Extrusion, Completeness of Removal and Operation Time in Different Rotational Speed of Root Canal Filling Removal by XP-Endo Finisher R File. Khon Kaen Dent J 2020, 23, 57-65.