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Related Experiment Videos

Adhesion of mesh-base direct-bonding brackets.

C E Thanos, T Munholland, A A Caputo

    American Journal of Orthodontics
    |April 1, 1979
    PubMed
    Summary

    Bracket adhesive bond strength varies by test method and bracket type. Mesh-base brackets excel in tension, while metal-base brackets perform better in shear, indicating no single adhesive system is universally superior.

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    Area of Science:

    • Dental Materials Science
    • Orthodontic Engineering

    Background:

    • Orthodontic bracket debonding is influenced by adhesive system and bracket base design.
    • Understanding bond strength variations is crucial for clinical success and minimizing enamel damage.

    Purpose of the Study:

    • To compare the bond strength of mesh-base and metal-base orthodontic brackets using different adhesive systems.
    • To evaluate the influence of tension, shear, and torsion tests on assessing bond strength.

    Main Methods:

    • Investigated bond strength of mesh-base and metal-base brackets with various adhesives.
    • Utilized tension, shear, and torsion tests to determine bond strengths.
    • Performed statistical analysis on the collected data.

    Main Results:

    • Adhesive system performance varied significantly across different test methods (tension, shear, torsion).
    • Mesh-base brackets demonstrated higher retentiveness in tension, whereas metal-base brackets showed greater retentiveness in shear.
    • Specific adhesive systems (Bond-Eze, Adaptic, Orthomite) showed superior performance with metal-base brackets, while others (Bond-Eze, Adaptic, Solo-Tach) were effective with mesh-base brackets in tension and shear.

    Conclusions:

    • No single adhesive system can be universally recommended based on a single test method.
    • Bracket base design (mesh vs. metal) significantly impacts bond strength under different mechanical stresses.
    • Torsion testing proved unreliable due to frequent bracket wing failures, limiting its utility in this study.

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