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JCR. 2019; 6(6): 670-672

A Comparative Evaluation Of Push-Out Bond Strength Of Four Different Root Canal Sealers To Root Dentin : ďAn In Vitro Study


The main purpose of endodontic treatment is to avoid contamination of canal from oral microflora.
For success of endodontic treatment hermetic sealing is most important As no bonding between gutta percha and
root dentin, sealer play a role to fill the gap between them. In this study four sealers like calcium hydroxide based,
resin based MTA based sealers will be used. And pushout bond strength of all these60 extracted teeth will be
selected and divided into 4 groups. It means 15 samples in one setGroup I : SealpaexGroup II: CRCS sealerGroup
III : MTA FillapeGroup IV: Hybrid root seal.After determining working length, biomechanical preparation will
be done till F3 rotary file system. Then sealer will be applied to all teeth and obturation will be done by lateral
compaction technique. Then samples will be tested for bond strength using universal testing machine.New resin
based sealer will shows higher bond strength while MTA based sealer shows lower pushout bond strength value.

Key words: Root canal sealer, Pushout bond strength

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