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Related Experiment Videos

[The effects of the processing technic on dentinal adhesion].

I Krejci1, F Lutz, U Perisic

  • 1Abteilung für Präventivzahnmedizin, Parodontologie und Kariologie, Universität Zürich.

Schweizer Monatsschrift Fur Zahnmedizin = Revue Mensuelle Suisse D'Odonto-Stomatologie = Rivista Mensile Svizzera Di Odontologia E Stomatologia
|January 1, 1992
PubMed
Summary
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Proper application of dentinal adhesives is crucial for excellent marginal adaptation in dental restorations. Even minor procedural deviations, like saliva contamination, significantly compromise restoration quality and longevity.

Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering

Context:

  • Marginal adaptation of dental restorations is critical for preventing secondary caries and ensuring longevity.
  • Class V restorations present unique challenges due to their location and the mix of enamel and dentin substrates.
  • Dentinal adhesives are widely used in direct and indirect restorative techniques.

Purpose:

  • To investigate the impact of various application techniques and procedural errors on the marginal adaptation of Class V restorations using dentinal adhesives.
  • To evaluate the influence of thermal cycling on the marginal integrity of these restorations.
  • To compare the performance of direct fillings versus inlay techniques.

Summary:

  • Optimal application of dentinal adhesives yielded excellent marginal adaptation, with no difference between enamel and dentin margins, even after thermal cycling.

Related Experiment Videos

  • Saliva contamination of the bonding agent significantly reduced excellent margin percentages on both enamel and dentin.
  • Protecting the bonding agent with insulating gel also negatively impacted marginal adaptation. Reapplication of the bonding agent did not improve results. Postcured inlays performed better than non-postcured ones. Priming enamel without etching yielded good initial results but decreased after thermal loading.

    • Impact:

    • Highlights the sensitivity of dentinal adhesive systems to procedural variations, emphasizing the need for strict adherence to application protocols.
    • Provides critical insights for clinicians to optimize restorative techniques and improve the clinical success of Class V restorations.
    • Underscores the importance of preventing contamination during the bonding procedure to maintain restoration integrity and longevity.