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Orthodontic bonding to porcelain: a systematic review
Gursimrit K Grewal Bach1, Ysidora Torrealba, Manuel O Lagravère
1a Undergraduate student, Faculty of Science, Concordia University College of Alberta, Edmonton, Alberta, Canada.
The Angle Orthodontist
|December 12, 2013
Summary
This systematic review found that etching porcelain with 9.6% hydrofluoric acid followed by silane provides the highest success rate for bonding brackets. Mechanical roughening with sandblasting and silane is a safer alternative.
Area of Science:
- Dental Materials Science
- Orthodontic Adhesion Science
Background:
- Bonding orthodontic brackets to porcelain restorations presents a clinical challenge.
- Optimizing bracket adhesion to porcelain is crucial for successful orthodontic treatment outcomes.
Purpose of the Study:
- To systematically review and identify the most effective materials and protocols for bonding orthodontic brackets to porcelain surfaces.
- To determine the highest success rates for bracket adhesion on porcelain.
Main Methods:
- A comprehensive systematic review of in vitro and in vivo studies was conducted.
- Extensive database searches were performed up to July 2013, supplemented by hand searches of bibliographies.
- Forty-five in vitro articles published between 2000 and July 2013 met the inclusion criteria; no in vivo studies qualified.
Main Results:
- No suitable in vivo studies were identified for inclusion.
- A total of 45 in vitro studies met the review's inclusion criteria.
- The reviewed studies focused on various bonding materials and techniques for porcelain surfaces.
Conclusions:
- The optimal protocol involves etching with 9.6% hydrofluoric acid for one minute, followed by a 30-second rinse, air-drying, and silane application.
- Due to the hazardous nature of hydrofluoric acid, mechanical roughening via sandblasting, followed by silane application, is presented as a viable and safer alternative.
- Both methods aim to enhance the bond strength between orthodontic brackets and porcelain substrates.
