Root Canal Infection Clinical Trial
Official title:
Effects of Irrigation Activation on Clinical Outcomes of Root Canal Treatment in Posterior Teeth With Chronic Apical Periodontitis
This study evaluates postoperative pain and radiographic healing of asymptomatic posterior teeth with chronic apical periodontitis following root-canal treatment performed using different methods of irrigation activation.
Aim: To evaluate postoperative pain and radiographic healing of asymptomatic posterior teeth
with chronic apical periodontitis following root-canal treatment performed using different
methods of irrigation activation.
Methodology: In this prospective clinical trial, root-canal treatment was performed on 162
posterior teeth with chronic apical periodontitis. After routine canal preparation, patients
were assigned to either a control group treated using conventional needle irrigation (CNI)
without activation or to one of 3 treatment groups, each of which was treated using a
different activation protocol during the final irrigation [manual dynamic irrigation (MDI),
passive ultrasonic irrigation (PUI), sonic irrigation (SI)]. All treatment was completed in a
single visit. Patients provided self-assessments of the severity of postoperative pain at
24h, 48h and 7 days using a modified 4-step visual analogue scale (VAS). Patients were
recalled at 12 months for clinical and radiographic examinations. Periodontal healing was
evaluated using a periapical index (PAI), with scores of 1 or 2 considered to represent
treatment success and scores of 3, 4, or 5 to represent treatment failure. Data were analyzed
using one-way ANOVA and Kruskal-Wallis tests, with differences of P < 0.05 considered
statistically significant.
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