Influence of instrument design on post-operative pain in single-visit root canal treatment with Protaper Next and V taper 2H rotary systems in symptomatic irreversible pulpitis of multirooted teeth - A randomized clinical trial.

Aim: The objective of this randomized clinical trial was to clinically evaluate the incidence of postoperative pain after root canal treatment in symptomatic irreversible pulpitis of multirooted teeth using two different instruments design rotary file systems, namely, Protaper Next (PTN) and V taper 2H (VT2H).

Materials And Methods: In this prospective randomized clinical trial, 60 patients with symptomatic irreversible pulpitis of multirooted teeth, indicated for root canal therapy, were randomly assigned to two groups according to instrument system used, namely, PTN and VT2H. Root canal treatments were performed in single visit.