Assessment of Postoperative Pain After Using Reciproc Versus One Shape NiTi Systems

"* Canals will be instrumented using Reciproc reciprocating system set on an electric motor, with adjusted torque and speed according to the manufacturer's instructions.~* There is no need for coronal preflaring with a Gates Glidden drill or an orifice opener since the design of the Reciproc instrument allows any obstructions in the coronal third to be removed, as claimed by the manufacturer.~* Reciproc file selection: R40 (40/0.06) is to be used."

"* Coronal preflaring will be performed using Gates Glidden drill.~* Canals will be instrumented using One Shape single-file (25/0.06) set on an electric motor with adjusted torque and speed according to the manufacturer's instructions.~* For wide canals, One Shape Apical (30/0.06, 37/0.06) will be used."