This randomized clinical trial aims to evaluate the antibacterial efficacy and treatment outcomes of three different final irrigation protocols during root canal therapy: 2.5% sodium hypochlorite alone, sodium hypochlorite with Passive Ultrasonic Irrigation (PUI), and sodium hypochlorite with XP-Endo Finisher activation. Sixty-six single-rooted teeth with pulp necrosis and apical periodontitis will be randomly assigned to one of the three groups. Antibacterial efficacy will be assessed through Real-Time PCR quantification of total bacterial load and four specific bacterial species before and after treatment. Treatment success will be evaluated clinically and radiographically at 6 and 12 months. The study aims to identify the most effective irrigation strategy for bacterial reduction and healing outcomes.
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Reduction in Total Intracanal Bacterial Load
Timeframe: 0ne to six months