Comparison of ultrasonic versus side-vented needle irrigation for reductions in bacterial growth and postoperative pain: A randomized controlled trial.

Background: Postoperative pain affects 16%-25% of root canal therapy patients. The irrigating system and irrigants used should reduce bacterial load without irrigant extrusion beyond the root canal apex, potentially reducing postoperative pain and discomfort.

Aim: This study aims to compare the effects of passive ultrasonic irrigation and side-vented needle irrigation on postoperative pain and bacterial load in single-rooted teeth with pulp necrosis.

Comparison of postoperative pain following single-visit and two-visit root canal therapy in controlled diabetic patients with irreversible pulpitis: A randomized control trial.

Aim: The aim of this study was to evaluate and compare the prevalence of postoperative pain after single- and two-visit endodontic therapy in controlled Type 2 diabetic and nondiabetic individuals in multirooted teeth with irreversible pulpitis.

Materials And Methods: Ninety patients with irreversible pulpitis (30 controlled diabetics and 60 nondiabetics), between 18 and 60 years were included in the study. After obtaining initial pain scores, patients were randomly allocated to single-visit or two-visit root canal treatment (RCT) groups to receive standardized treatment.