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Related Experiment Videos

The development of a composite restorative system.

L J Henderson1, G Soh, P Chantler

  • 1Department of Prosthetic Dentistry, National University of Singapore.

Annals of the Academy of Medicine, Singapore
|September 1, 1989
PubMed
Summary

Dental composite resins have improved, but marginal gaps persist. Introducing an intermediate resin and dentine adhesive significantly reduced these gaps at the tooth-restoration interface.

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Area of Science:

  • Dental Materials Science
  • Restorative Dentistry
  • Biomaterials Engineering

Background:

  • Composite resins are widely used dental restorative materials.
  • Early composites suffered from discoloration and marginal breakdown.
  • Marginal gaps at the dentine-restoration interface remain a challenge despite dentine adhesives.

Purpose of the Study:

  • To evaluate methods for reducing marginal gaps in dental restorations.
  • To assess the efficacy of an intermediate resin and dentine adhesive in minimizing interfacial gaps.

Main Methods:

  • Investigated the impact of an intermediate resin layer.
  • Assessed the combined effect of an intermediate resin and a dentine adhesive.
  • Quantified marginal gap reduction at the dentine-restoration interface.

Main Results:

  • An intermediate resin significantly reduced marginal gaps.
  • Further significant reduction in marginal gaps was achieved using a dentine adhesive.
  • These techniques effectively addressed a persistent issue in composite restorations.

Conclusions:

  • The combination of an intermediate resin and dentine adhesive is highly effective.
  • This approach offers a solution to minimize marginal gaps in composite restorations.
  • Improved longevity and sealing of dental restorations can be achieved.

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