Comparison of the sealing ability of three filling techniques in canals shaped with two different rotary systems: A bacterial leakage study

ObjectiveThis study compared the sealing ability of 3 current filling techniques in root canals shaped with 2 different rotary systems.Study designEighty human extracted mandibular premolars were divided randomly into 2 similar groups of 40 each and instrumented with either ProTaper (Dentsply Maillefer, Tulsa, OK; group A) or Mtwo (VDW; Antaeos, Munich, G