(NaOCl) and (EDTA) 17 are the most commonly used irrigants. The active chlorine part in NaOCl that is responsible for its antimicrobial and dissolving activity was greatly reduced when mixed with EDTA. Recently, Dual Rinse HEDP has been proposed as an endodontic irrigant with the ability to remove the smear layer without affecting the antimicrobial and dissolving effect of NaOCl.
Epoxy resin and bioceramic sealers are self-adhesive sealers that provided similar acceptable results when tested..
Aim: To compare the efficacy of an innovative additive mixed with (NaOCl) on the marginal adaptation of two root canal sealers to the standard irrigation protocol of using (NaOCl) and 17% EDTA.
Material & Methods: Forty extracted single roots teeth were endodontically accessed and canal enlarged using ProTpaer Next up to size X4. Samples were divided into four groups:
Group1irrigated with 3% NaOCl and EDTA obturated using Adseal Group 2 irrigated with 3% NaOCl and HEDP; obturated using Adseal Group3 irrigated with 3% NaOCl and EDTA obturated using Endoseal Group 4 irrigated with 3% NaOCl and HEDP; obturated using Endoseal
The samples were obturated using ProTaper Next gutta percha cone size X4and subjected to (SEM) evaluation and statistical analysis.
Results: Groups 3&4 obturated using Endoseal showed significantly less marginal gaps in comparison to Groups 1&2 obturated with Adseal sealer regardless of the irrigation protocol used.
Conclusion: it could be concluded that Endoseal MTA provided better adaptation to root canal walls regardless of the irrigation regime.Also Adseal showed better adaptation when NaOCl & HEDP were used