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Related Experiment Videos

Influence of dentin primer application methods on dentin bond strength

M Miyazaki1, J A Platt, H Onose

  • 1Indiana University School of Dentistry, Department of Restorative Dentistry, Dental Materials, Indianapolis 46202, USA.

Operative Dentistry
|July 1, 1996
PubMed
Summary

Dentin primer application methods significantly influence bond strength in dental restorative systems. Optimal air-drying times vary between systems, impacting adhesive performance.

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Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering

Background:

  • Dentin bonding systems are crucial for dental restorations.
  • Primer application technique can affect bond durability.

Purpose of the Study:

  • To investigate how dentin primer application methods influence bond strength.
  • To determine the optimal air-drying times for two dentin bonding systems.

Main Methods:

  • Two systems (Imperva Bond/Lite-Fil II A and Scotchbond Multi-Purpose/Z-100) were tested on human molars.
  • Primer application (active vs. inactive) and air-drying times were varied.
  • Shear bond strength was measured after 24-hour water storage.

Main Results:

  • Active primer application showed higher bond strengths than inactive, though not always statistically significant.

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  • Optimal air-drying times differed: 10-30 seconds for Imperva Bond and 1-5 seconds for Scotchbond MP.

    • Conclusions:

    • Dentin primer application methods critically affect the bond strength of dental bonding systems.
    • Optimizing air-drying time is essential for maximizing bond performance with specific systems.