Akansha Garg, Ajay Nagpal, Shashit Shetty, Sunil Kumar, Kamal Krishan Singh, Amit Garg
INTRODUCTION: To evaluate and compare the amount of time required by three rotary NiTi instruments in removing gutta-percha from root canal during retreatment with hand file as control. MATERIALS AND METHODS: Eighty human mandibular premolars with single straight root canals were prepared and obturated by cold lateral condensation with gutta-percha and AH Plus sealer. After two weeks, the 80 teeth were divided into one control group and 3 retreatment groups (n = 20 each)...
February 2015: Journal of Clinical and Diagnostic Research: JCDR