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Related Experiment Videos

Adhesion between the resin shell and composite resin.

M Aida1, H Kanaya, Y Murata

  • 1Department of Crown and Bridge Prosthodontics, Nihon University School of Dentistry, Chiba, Japan.

The Journal of Nihon University School of Dentistry
|September 1, 1992
PubMed
Summary
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Super-bond C & B treatment significantly enhances the adhesion of SR-PE-ISOCETTE resin shells to composite resins. This method is crucial for achieving strong, durable bonds in dental applications.

Area of Science:

  • Dental Materials Science
  • Polymer Chemistry
  • Biomaterials Engineering

Background:

  • The interface between resin shells and composite resins is critical for the longevity of dental restorations.
  • Thermosetting resins like SR-PE-ISOCETTE are used for crown and bridge fabrication, requiring reliable bonding to overlaying composite materials.
  • Optimizing adhesion is essential to prevent restoration failure and improve clinical outcomes.

Purpose of the Study:

  • To evaluate the effectiveness of various surface treatments on the adhesiveness between SR-PE-ISOCETTE resin shells and photocurable composite resins.
  • To determine the optimal bonding method for achieving high shear bond strength.
  • To identify key chemical agents that promote adhesion in this specific material combination.

Main Methods:

Related Experiment Videos

  • SR-PE-ISOCETTE resin shells were treated with different bonding agents, including Super-bond C & B, Clearfil systems, Unifast, MMA/TBBO, and silane coupling agents.
  • Shear bond strengths were measured after 24-hour water immersion at 37°C.
  • The study focused on the bond interface between the thermosetting resin shell and photocurable composite resin.

Main Results:

  • Super-bond C & B treatment demonstrated superior performance, yielding a shear bond strength of approximately 14 MPa.
  • Clearfil new bond, Clearfil porcelain bond, Unifast, and MMA/TBBO treatments resulted in comparable bond strengths, ranging from 7-9 MPa.
  • Silane coupling agents did not significantly improve the bond strength between the resin shell and composite resin.

Conclusions:

  • Super-bond C & B treatment is highly effective in enhancing the adhesiveness between SR-PE-ISOCETTE and composite resins.
  • The presence of 4-META (methacryloyloxyethyl) is identified as a critical component for achieving robust adhesion.
  • These findings provide valuable insights for selecting appropriate surface treatments to improve the durability of dental restorations.