This clinical study aims to investigate the oxidative stress-related effects of ozone irrigation in patients with asymptomatic apical periodontitis undergoing root canal treatment. A total of 60 patients who meet the inclusion criteria will be randomly assigned into two groups using an online randomization tool: an ozone irrigation group and a saline irrigation (control) group. The primary objective is to assess the biochemical effects of ozone therapy on oxidative stress markers in periapical interstitial fluid, including but not limited to TAS, TOS, MDA, and 8-OHdG, by using ELISA kits. After routine canal preparation and initial irrigation protocol (NaOCl-EDTA-NaOCl), baseline periapical fluid samples will be collected using standardized sterile paper points. Following this, experimental irrigation will be applied: ozone water in the study group and saline solution in the control group. Second periapical fluid samples will be collected immediately after this procedure. Subsequently, calcium hydroxide dressing will be placed into the canals, and the patients will be recalled after one week. At the second visit, after removal of the intracanal medicament, a third sample will be collected from each patient. Ethical approval was obtained from the Non-Interventional Clinical Research Ethics Committee of AtatĂĽrk University Faculty of Medicine. The results of this study are expected to contribute to the understanding of ozone therapy as a biocompatible and effective disinfection agent in endodontic procedures and to provide insights into its role in modulating oxidative stress within the periapical environment.
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Change in oxidative stress biomarkers in periapical fluid following ozone or saline irrigation
Timeframe: From baseline to 7 days after treatment