JOURNAL OF ISTANBUL UNIVERSITY FACULTY OF DENTISTRY, cilt.51, sa.2, ss.7-13, 2017 (ESCI, TRDizin)
Purpose: The aim of this study was to compare the cleanliness of root canal walls after retreatment using ProTaper Next (PTN), ProTaper Universal Retreatment (PTR) nickel-titanium (NiTi) systems and Hedstrom hand files in curved mesial canals of mandibular molar teeth and the time required for gutta-percha and sealer removal.