Severity of post-operative pain after instrumentation of root canals by XP-endo and SAF full sequences compared to manual instrumentation

The motive of this investigation was to examine the post-operative pain experienced ensue single-visit root canal treatment using the XP-endo shaper sequence (XPS), full-sequence self-adjusting file (SAF), and manual K-files (HKF). A randomized equivalence parallel design, double blinded clinical study was conducted on 120 patients with symptomatic irreversible pulpitis, with or without clinical signs of apical periodontitis. Only teeth with fully formed roots and no periapical lesions were incorporated in the study. Patients were apportioned to one of three groups (n=40) randomly: Group 1 – XPS, Group 2 – SAF, and Group 3 – HKF. Pre- and post-instrumentation pain was rated utilizing Visual Analog Scale (VAS) with a spectrum of 0-100 mm.