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Related Experiment Videos

Bond strengths to endodontically-treated teeth.

T Nikaido1, Y Takano, Y Sasafuchi

  • 1Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University, Japan. t.nikaido.odnt@dent.tmd.ac.jp

American Journal of Dentistry
|January 29, 2000
PubMed
Summary

Chemical irrigation significantly reduced resin bonding to endodontically treated teeth. Single Bond and Superbond C&B showed lower bond strengths after irrigation with sodium hypochlorite or hydrogen peroxide compared to saline control.

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Area of Science:

  • Endodontics
  • Dental Materials Science
  • Adhesive Dentistry

Background:

  • Resin bonding systems are crucial for restoring endodontically treated teeth.
  • Chemical irrigants used during endodontic procedures may affect the bond strength of restorative materials.
  • Understanding the impact of irrigants on bond strength is vital for long-term clinical success.

Purpose of the Study:

  • To evaluate and compare the bond strengths of three distinct resin bonding systems.
  • To assess the effect of common endodontic chemical irrigants on these bond strengths.
  • To determine the suitability of these bonding systems for teeth undergoing endodontic treatment.

Main Methods:

  • Bovine incisors underwent access cavity preparation and pulpal tissue removal.

Related Experiment Videos

  • Root canals were irrigated with saline, 5% sodium hypochlorite, 3% hydrogen peroxide, or combinations.
  • Teeth were bonded with Clearfil Liner Bond II, Single Bond, or Superbond C&B, followed by tensile bond strength testing.

    • Main Results:

    • Single Bond and Superbond C&B exhibited statistically significant lower bond strengths (P < 0.05).
    • This reduction in bond strength was observed in groups treated with chemical irrigants compared to the saline control.
    • Clearfil Liner Bond II's performance relative to irrigants was not explicitly detailed in the provided results.

    Conclusions:

    • Chemical irrigation protocols involving sodium hypochlorite and/or hydrogen peroxide can negatively impact the bond strength of certain resin bonding systems.
    • Clinicians should consider the potential compromise in bond integrity when using these irrigants with specific bonding agents.
    • Further research may be needed to identify irrigant-resistant bonding systems or alternative treatment protocols.