Comparison of Efficacy of Three Ni-Ti Instruments in Removal of Gutta-Percha from Root Canal during Retreatment- An In Vitro Study Journal title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) Authors: Dr. Anil.K. Tomer, Dr. Anjali Miglani, Dr. Smita Sahni, Dr. B. Vinay Goud, Dr. Sneha Vaidya, Dr. Ana... Subject(s):