(PR055) "Comparative Efficacy of OdneClean, Ultrasonically Activated Irrigation, and Syringe-and-Needle Irrigation for Removal of Accumulated Hard Tissue Debris in Small and Large Root Canal Models"

Objective: This study evaluates the effectiveness of OdneClean, a cavitation-based irrigation device, in removing accumulated hard tissue debris (AHTD) in root canals, compared to traditional syringe-and-needle irrigation (SNI) and ultrasonically activated irrigation (UAI) in small and large canal models.

Methods: Forty-two extracted human teeth (21 maxillary premolars and 21 mandibular incisors, Vertucci Type I) were used. Each tooth underwent pre- and post-instrumentation micro-computed tomography (micro-CBCT) scans to assess AHTD volumes. Teeth were irrigated with EDTA, then randomly divided into three groups based on the irrigation technique: syringe-and-needle irrigation (SNI), ultrasonically activated irrigation (UAI), and OdneClean. Post-irrigation micro-CBCT scans quantified AHTD volume reduction for each irrigation group.

Results: Micro-CBCT assessment showed an equal distribution of hard tissue debris among the different irrigation groups. The ability to remove hard tissue debris varied among the different irrigation groups in small and large canal models.

Conclusion: The use of OdneClean appears to improve debris removal in both canal models compared to SNI and UAI, and could be a promising irrigation technique.