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Related Experiment Videos

Bonding to porcelain and gold.

D P Wood, R E Jordan, D C Way

    American Journal of Orthodontics
    |March 1, 1986
    PubMed
    Summary

    Bonding orthodontic brackets to porcelain is effective, especially with primers. Surface roughening and primers increase bond strength but risk porcelain fracture during debonding.

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    Area of Science:

    • Dental Materials Science
    • Orthodontic Adhesion Technology

    Background:

    • Bonding orthodontic attachments to porcelain restorations presents clinical challenges.
    • Evaluating methods to improve bond strength and minimize damage is crucial for successful treatment.

    Purpose of the Study:

    • To assess the efficacy of various resin systems and porcelain bonding agents for attaching orthodontic brackets to porcelain.
    • To compare bond strengths achieved with different surface treatments and primers against conventional enamel bonding.

    Main Methods:

    • Edgewise brackets were bonded to 160 porcelain denture teeth using two resin systems and three bonding agents.
    • Evaluated shear bond strengths with and without porcelain primers and surface roughening.
    • Assessed porcelain fracture risk during debonding and surface appearance restoration.

    Main Results:

    • Bonding to porcelain was effective; primers yielded strengths comparable to acid-etched enamel.
    • Roughening porcelain with a heavily filled resin achieved significant shear strength without a primer.
    • Increased bond strength through roughening, primers, and filled resins correlated with higher fracture risk.

    Conclusions:

    • Clinically sufficient bond strength can be achieved with highly filled resins on intact porcelain.
    • Porcelain primers enhance bond strength, with Reliance showing preference over Ormco or Fusion.
    • While roughening and primers increase strength, the clinical necessity and risk of porcelain fracture must be considered.

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