Super-EBA as an endodontic apical plug

Forty extracted human single-rooted teeth were sequentially instrumented wi th nickel-titanium rotary files to a size 0.36 mm at the working length. Te n teeth were randomly assigned to the two control groups. The other 30 teet h were randomly divided into three groups and were obturated by a 5-mm apic al plug of either Super-EBA, IRM, or laterally condensed gutta-percha and R oth's sealer. After 2 days, and at 1 month, the samples were tested for mic roleakage by the fluid filtration system under 15 psi. The negative control s were used to consider the time that it took the fluid filtration system t o stabilize. A one-way analysis of variance showed that, at 1 month post ob turation, there was no statistical difference in the ability of the three m aterials to seal the apex from coronal microleakage. However, at 2 days, Su per-EBA gave a significantly better seal than IRM or laterally condensed gu tta-percha and sealer.