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Related Experiment Videos

Dentastic bond strength to dentin

F García-Godoy1, E Neuman

  • 1Department of Pediatric Dentistry, University of Texas Health Science Center at San Antonio 78284-7888, USA.

American Journal of Dentistry
|June 1, 1996
PubMed
Summary
This summary is machine-generated.

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This study assessed the bond strength of Dentastic hydrophilic dentin bonding agent to permanent teeth. Results showed consistent, strong bonds, indicating the agent is more robust than tooth or resin structures.

Area of Science:

  • Dental Materials Science
  • Adhesive Dentistry
  • Biomaterials Engineering

Background:

  • Dental bonding agents are crucial for restorative procedures.
  • Hydrophilic dentin bonding agents offer potential advantages in moist environments.
  • Evaluating bond strength and failure modes is essential for clinical efficacy.

Purpose of the Study:

  • To determine the shear bond strength of Dentastic hydrophilic dentin bonding agent to dentin.
  • To analyze the failure sites of bonded specimens.
  • To compare different application protocols of the bonding agent.

Main Methods:

  • Forty permanent molar teeth were prepared to expose a uniform dentin surface.
  • Specimens were divided into four groups with varying primer coats and light-curing steps.

Related Experiment Videos

  • Shear bond strength was tested after thermocycling, with failure analysis using microscopy.

    • Main Results:

    • Shear bond strengths ranged from 22.63 to 27.26 MPa across the groups.
    • No statistically significant differences were found between the tested groups.
    • All failures occurred cohesively within the dentin or the resin composite.

    Conclusions:

    • Dentastic hydrophilic dentin bonding agent demonstrates robust shear bond strength to dentin.
    • The bonding agent's strength exceeds the cohesive strength of both dentin and resin.
    • The tested application variations did not significantly impact bond performance.