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Self-etching bonding agents.

Karl F Leinfelder1, Steven M Kurdziolek

  • 1Department of Biomaterials, University of Alabama, School of Dentistry, Birmingham, Alabama, USA.

Compendium of Continuing Education in Dentistry (Jamesburg, N.J. : 1995)
|October 1, 2003
PubMed
Summary

Researchers developed a novel resin-dentin bonding method by acid-etching dentin to create micro-pores. This technique enhances micro-retention, achieving bond strengths comparable to dentin

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Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Adhesive Dentistry

Background:

  • Historically, resin-dentin bonding efforts focused on chemical interactions with collagen or inorganic components.
  • Early methods yielded limited success, necessitating innovative approaches for durable adhesion.

Purpose of the Study:

  • To introduce and evaluate a novel resin-dentin bonding strategy based on micro-mechanical retention.
  • To achieve bond strengths approaching the intrinsic strength of dentin.

Main Methods:

  • Dentin conditioning using acid to achieve superficial demineralization.
  • Infusion of a low-viscosity monomer into the demineralized spaces, replacing the inorganic phase.
  • Establishing a bond based on microretention rather than solely chemical bonding.

Main Results:

  • The developed technique effectively creates a micro-porous dentin surface.
  • Low-viscosity monomers successfully infiltrate and replace the inorganic dentin phase.
  • Achieved bond strengths closely approximate the inherent strength of dentin.

Conclusions:

  • The acid-etching and monomer infiltration technique represents a significant advancement in resin-dentin bonding.
  • Micro-retention is a key principle for achieving high and reliable bond strengths in adhesive dentistry.
  • This method offers a promising alternative to traditional chemical bonding strategies.

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