A Comparison of Transportation and Time of Canal Preparation with Stainless Steel Hand Instruments and Ni-Ti Rotary Systems (In-Vitro)Journal of Islamic Dental Association of Iran, 2005, 17(3), pp. 88-94Read More Tags:A Comparison of Transportation and Time of Canal Preparation with Stainless Steel Hand Instruments and Ni-Ti Rotary Systems (In-Vitro)