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Effect of adhesive application prior to bracket bonding with flowable composites
Alberto Albaladejo1, Javier Montero, Rafael Gómez de Diego
1Department of Surgery, University of Salamanca, Salamanca, Spain. albertoalbaladejo@usal.es
The Angle Orthodontist
|February 11, 2011
Summary
Using an adhesive system before bonding orthodontic brackets with flowable composites resulted in similar shear bond strength (SBS). Transbond Supreme was the only exception, performing consistently with or without adhesive.
Area of Science:
- Dental Materials Science
- Orthodontic Adhesion
Background:
- Flowable composite resins are increasingly used in orthodontics.
- Their bond strength to enamel can be influenced by adhesive application.
Purpose of the Study:
- To assess the impact of an adhesive on the shear bond strength (SBS) of orthodontic brackets bonded with various flowable composite resins to acid-etched enamel.
Main Methods:
- 100 metal brackets were bonded to etched human premolars using five composites (four flowable, one conventional).
- Specimens were tested with and without an adhesive system (Transbond XT).
- Shear bond strength (SBS) and adhesive remnant index were evaluated.
Main Results:
- With an adhesive system, all tested composites demonstrated comparable SBS.
- Adhesive application significantly affected SBS, with decreases observed in most groups without it.
- Transbond Supreme LV was the only composite that maintained similar SBS regardless of adhesive use.
Conclusions:
- Flowable composite resins show similar SBS when used with an adhesive system.
- Transbond Supreme is unique in its consistent performance with or without an adhesive.
