n In Vitro Evaluation of the Contents of Root Canals bturated With Gutta Percha and AH-26 Sealer or Resilon nd Epiphany Sealer

H e a bstract he purpose of this study was to compare the contents of oot canals obturated with gutta percha and AH-26 sealer Dentsply, Tulsa, OK) to canals obturated with the Resilon nd Epiphany (Pentron, Wallingford, CT) system. Canal ontents were assessed by determining the percentage of anal space occupied by core material, sealer, voids, and ebris. Forty extracted human maxillary anterior teeth ere instrumented, and the teeth were randomly assigned o either the gutta percha/AH 26 group or the Epiphany/ esilon group. Canals were obturated, and the teeth were ubsequently embedded in resin and sectioned horizonally at 2, 4, and 6 mm from the anatomic apex. Sections ere photographed by using a low vacuum scanning lectron microscope. Image-J (Wayne Rasband; National nstitute of Health, Bethesda, MD) software was used to uantify the proportion of core material, sealer, voids, and ebris in each canal. Percentages and statistical comparsons for each method were compared. There were no ignificant differences found among the two groups in erms of the percentage of core (p 0.9), sealer (p .58), debris (p 0.999), or voids (p 1.00). Additionlly, there were no differences in the percentage of core aterial, sealer, debris, or voids at any of the examined evels (2, 4, or 6 mm). (J Endod 2007;33:1359–1363)