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Related Experiment Videos

Amalgam shear bond strength to dentin using different bonding agents

M A Vargas1, G E Denehy, T Ratananakin

  • 1University of Iowa, College of Dentistry, Department of Operative Dentistry, Iowa City 52242, USA.

Operative Dentistry
|November 1, 1994
PubMed
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Amalgambond Plus demonstrated superior shear bond strength to dentin compared to four other agents. This finding is significant for improving amalgam restorations and dental bonding agent efficacy.

Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Adhesive Dentistry

Background:

  • Dental amalgam remains a widely used restorative material.
  • Ensuring durable adhesion between amalgam and dentin is crucial for restoration longevity.
  • Various bonding agents aim to enhance the mechanical properties and retention of amalgam restorations.

Purpose of the Study:

  • To compare the shear bond strength of amalgam to dentin using five distinct bonding agents.
  • To identify which bonding agent provides the highest bond strength for amalgam restorations.
  • To evaluate the efficacy of Amalgambond Plus with its High-Performance Additive.

Main Methods:

  • Fifty human third molars were prepared with flat dentin surfaces.
  • Five bonding agents (Amalgambond Plus, Optibond, Imperva Dual, All-Bond 2, Clearfil Liner Bond) were applied.

Related Experiment Videos

  • Tytin amalgam was condensed into molds, followed by thermocycling.
  • Shear bond strength was measured using an Instron Universal Testing Machine.

    • Main Results:

    • One-way ANOVA revealed a statistically significant difference in shear bond strength among the five groups (P < 0.05).
    • Amalgambond Plus, when used with the High-Performance Additive, exhibited significantly higher shear bond strength compared to the other four bonding agents.
    • This indicates a superior ability of Amalgambond Plus to bond amalgam to dentin.

    Conclusions:

    • Amalgambond Plus with High-Performance Additive offers superior shear bond strength for amalgam-to-dentin bonding.
    • The selection of an appropriate bonding agent can significantly impact the mechanical integrity of amalgam restorations.
    • Further research may explore the long-term clinical performance of Amalgambond Plus in amalgam restorations.