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Bonding amalgam to dentin by different methods

F Hadavi1, J H Hey, R B Strasdin

  • 1Columbia University School of Dental and Oral Surgery, New York, N.Y.

The Journal of Prosthetic Dentistry
|September 1, 1994
PubMed
Summary

All-Bond-2 adhesive demonstrated superior shear bond strength for amalgam to dentin compared to Amalgambond Plus and TMS Minim pins. This finding highlights All-Bond-2

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Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Adhesive Dentistry

Background:

  • Dental amalgam restorations require reliable bonding to dentin for longevity.
  • Various adhesive systems and mechanical retention methods exist to enhance amalgam bond strength.
  • Evaluating the comparative efficacy of different bonding agents is crucial for clinical application.

Purpose of the Study:

  • To compare the shear bond strengths of amalgam bonded to dentin using All-Bond-2 adhesive, Amalgambond Plus adhesive, and TMS Minim pins.
  • To determine which of the tested systems provides superior adhesion and retention of amalgam restorations.

Main Methods:

  • Forty-five human molars were prepared and randomly assigned to three groups: All-Bond-2, Amalgambond Plus, and TMS Minim pins.
  • Dentin surfaces were exposed and prepared, followed by the application of the respective bonding agents and amalgam condensation.
  • Shear bond strength was measured using a universal testing machine after applying a shear force to the amalgam cylinder.

Main Results:

  • All tested systems (All-Bond-2, Amalgambond Plus, TMS Minim pins) successfully promoted adhesion/retention of amalgam to dentin.
  • All-Bond-2 exhibited significantly higher shear bond strength (11.106 ± 3.585 MPa) compared to Amalgambond Plus (6.343 ± 3.564 MPa) and TMS Minim pins (6.868 ± 0.794 MPa).
  • Statistical analysis (ANOVA and Scheffé's test) confirmed the significant difference at p < 0.05.

Conclusions:

  • All-Bond-2 adhesive is more effective in achieving higher shear bond strength of amalgam to dentin than Amalgambond Plus and TMS Minim pins.
  • The findings suggest that All-Bond-2 may offer improved clinical performance for amalgam restorations requiring dentin bonding.
  • Further research could explore the long-term durability and clinical outcomes associated with these bonding systems.

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