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Genetics

Analysis of Bond Strength of Bioceramic Sealer Following Irrigation with Chlorhexidine.

Larissa Gadelha Costa, Júlia Magalhães Saldanha, José Evando da Silva-Filho, Bernardo Almeida Aguiar, Fábio de Almeida Gomes, Eduardo Diogo Gurgel-Filho

Featured June 2, 2026

Original Paper

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Simply

Dentists use special glue (sealers) to fill tooth roots, and this study found that one common glue (AH-Plus) sticks better than a newer type (bioceramic sealer), especially when a cleaning liquid called chlorhexidine is used with the newer glue.

In depth
This study rigorously investigates the bond strength of two common root canal sealers, a traditional epoxy resin-based (AH-Plus) and a newer bioceramic sealer (Sealer Plus BC), when exposed to different irrigation solutions: sodium hypochlorite (NaOCl) and chlorhexidine (CHX). The authors found that AH-Plus consistently exhibited superior bond strength regardless of the irrigant, while the performance of the bioceramic sealer was significantly compromised by CHX, showing better adhesion with NaOCl.

Key Takeaways

  • 1
    AH-Plus consistently demonstrated superior bond strength compared to Sealer Plus BC, irrespective of the irrigation solution used.
  • 2
    The bond strength of the bioceramic sealer (Sealer Plus BC) was significantly influenced by the irrigant, with NaOCl yielding higher values than CHX.
  • 3
    The study employed robust non-parametric statistical methods and bootstrap analysis to draw reliable conclusions from a small sample size.

Conceptual Flow

HIGH LEVEL
1
Methodology: How was it done?

Researchers took teeth, cleaned them with different liquids, filled them with different glues, and then measured how strong the glue stuck inside.

Extracted Teeth
Different Cleaners
Different Glues
Prepare & Fill Roots, Cut into Slices, Push Out Glue
Glue Strength Numbers
2
Results: What did they find?

They found that one type of glue was always stronger, and the newer glue's strength depended on which cleaning liquid was used.

Glue Strength Numbers
Compare Strengths
Glue A is Stronger
Cleaner Affects Glue B

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