Comparative Resistance of AH26 and a New Sealer Prototype to a Bacterial Challenge

Abstract EN

Objective.

This study compared the leakage resistance of a New Sealer Prototype (NSP) with a traditional sealer (AH 26) in Resilon-filled roots subjected to a bacterial challenge.

Study Design.

41 roots were instrumented to ISO size 50 apically.

Group 1 (n=20) contained Resilon and AH 26 sealer and roots in group 2 (n=21) contained Resilon and NSP.

Roots were embedded in a dual-chamber model with the upper chamber containing Streptococcus mutans inoculum.

Evidence of bacterial penetration was observed for 1 month.

Fisher's Test was used to analyze the data.

Results.

8 of 20 roots (40%) in the AH 26 group demonstrated leakage whereas 3 of 21 roots (14%) in the NSP group leaked.

The difference in leakage rates was not statistically significant (P=0.053).

Conclusion.

The traditional sealer (AH 26) demonstrated increased leakage rates compared to the New Sealer Prototype (NSP), but the difference did not reach statistical significance in this study.