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Comparison Of Calcium Hydroxide Extrusion With Syringe Vs Spiral Filler Delivery: A Pilot Study, Gordon San Lai
Comparison Of Calcium Hydroxide Extrusion With Syringe Vs Spiral Filler Delivery: A Pilot Study, Gordon San Lai
Orthodontics and Endodontics Theses
Introduction: The aim of this study was to evaluate the frequency and amount of Ca(OH)2 extrusion in relation to the intracanal delivery technique, apical foramen size, and depth of placement. Methods: Standardized training blocks with j-shaped canals were used (n=64); half of the simulated canals were shaped to apical size #35(.06 taper) and the remaining 32 to #45(.06). The frequency and extent of Ca(OH)2 extrusion were measured relative to apical taper, the depth of insertion, and whether syringe or spiral filler was used. Blocks were immersed in pH-sensitive gel and observed for color change. The visible extent of extrusion, indicated …