Maintenance work on the ZORA databases is scheduled for Wednesday 22 May 2019 from 20:00-22:00. During this period ZORA and JDB will not be available. Thank you for your understanding.
Gekelman, D; Ramamurthy, R; Mirfarsi, S; Paqué, F; Peters, O A (2009). Rotary nickel-titanium GT and ProTaper files for root canal shaping by novice operators: a radiographic and micro-computed tomography evaluation. Journal of Endodontics, 35(11):1584-1588.