(PR081) Comparative Evaluation Of Three Endodontic Rotary File Systems In S-Shaped Root Canals: An In-Depth Analysis

Objectives: Preserving structural integrity while shaping root canals is a critical goal in endodontics. Despite advancements in file system design, an optimal choice for effectively shaping S-Shaped canals while preserving structural integrity remains elusive. This study compared XP-3D Shaper+, EdgeFile X7, and WaveOne Gold systems using simulated canals in resin blocks to measure volumetric changes post-instrumentation.

Methods: Thirty simulated S-Shaped canals in resin blocks were assigned to one of three groups (n=10 each) for instrumentation with XP-3D Shaper+, EdgeFile X7, or WaveOne Gold systems. CBCT scans analyzed with ITK-SNAP software compared volumetric changes against a "No-Treatment" control group. Statistical analysis employed ANOVA and Tukey's test (P < 0.05).

Results: The XP-3D Shaper+ group showed the least post-instrumentation canal volume change (12.92% increase), followed by EdgeFile X7 (31.74% increase), WaveOne Gold resulted in the largest canal volume change (51.04% increase). ANOVA and Tukey’s test confirmed statistically significant differences among all groups (F = 1130.96, p < 0.05).

Conclusion: The XP-3D Shaper+ system produced the least amount of canal enlargement, demonstrating a capacity to preserve tooth structure while effectively shaping curved canals. EdgeFile X7 and WaveOne Gold resulted in greater volumetric changes, indicating more extensive shaping and greater structural removal. XP-3D Shaper+ shows promise for balancing shaping efficiency and structural integrity of canal systems. Further in vivo research is needed to correlate these findings with clinical conditions