An in vitro evaluation of the sealing ability of Super-EBA cement used as a root canal sealer.

Forty-six extracted human teeth, 26 maxillary central incisors, and 20 mandibular incisors were instrumented with flared preparations. The maxillary and mandibular incisors were prepared to #50 and #30 master apical file sizes, respectively. Ten maxillary and mandibular teeth were obturated with a single gutta-percha (GP) cone and Super-EBA cement. Ten maxillary and mandibular incisors were obturated with laterally condensed GP and Roth 801 sealer. Six maxillary incisors were used as controls. Apical leakage of India ink was measured using a stereomicroscope after clearing the teeth. Results showed significantly less leakage in the mandibular incisors filled with GP and Super-EBA (p<0.05). There was no significant difference in leakage when comparing the maxillary central incisors (p>0.05). In this in vitro study, root canal obturation with a single GP cone and Super-EBA showed promise as an effective way to eliminate or reduce apical microleakage. Further studies are needed to test the ability to use this obturation method clinically.