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Orthodontic bracket bonding without previous adhesive priming: A meta-regression analysis.
Aline Segatto Pires Altmann1, Felipe Weidenbach Degrazia2, Roger Keller Celeste3
1a MSc student, Dental Materials Laboratory, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
The Angle Orthodontist
|July 16, 2015
Summary
Adhesive resin application does not significantly improve the shear bond strength of metal orthodontic brackets. This finding suggests that adhesive resin may be omitted during bracket bonding, simplifying the procedure.
Area of Science:
- Orthodontics
- Biomaterials Science
- Dental Adhesives
Background:
- Adhesive resin is commonly used in orthodontic bracket bonding.
- Its role in enhancing bond strength requires clarification.
- Understanding its impact is crucial for optimizing clinical procedures.
Purpose of the Study:
- To determine the consensus on whether adhesive resin improves orthodontic bracket bond strength.
- To investigate the association of methodological variables with bond strength outcomes.
Main Methods:
- Systematic electronic search of PubMed and Scopus databases.
- Inclusion of in vitro studies comparing metal orthodontic brackets with and without adhesive resin.
- Primary outcome: immediate shear bond strength (MPa).
Main Results:
- Nine studies were analyzed, revealing high heterogeneity (I² = 93.3%).
- Meta-regression identified five experimental conditions explaining 86.1% of heterogeneity.
- Shear bond strength was not significantly affected by adhesive resin application.
Conclusions:
- Adhesive resin application can be omitted during metal bracket bonding to enamel.
- This omission is valid regardless of the type of orthodontic adhesive employed.
- Simplifies the clinical bonding procedure without compromising bond strength.
