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A new premixed self-etch adhesive for bonding orthodontic brackets.
Samir E Bishara1, Adam W Otsby, Raed Ajlouni
1Department of Orthodontics, University of Iowa, Iowa City, IA 52242, USA. sbishara@msn.com
The Angle Orthodontist
|October 25, 2008
Summary
A new premixed self-etch adhesive showed lower shear bond strength (SBS) for orthodontic brackets compared to a standard primer. Further improvements are needed for successful clinical application in orthodontics.
Area of Science:
- Orthodontic materials science
- Dental adhesion research
Background:
- Self-etch adhesives offer simplified bonding procedures in orthodontics.
- Evaluating new adhesive systems is crucial for improving clinical outcomes.
Purpose of the Study:
- To assess the efficacy of a novel premixed self-etch adhesive (AdheSE One) for bonding orthodontic brackets to enamel.
- To compare its performance against a conventional self-etching primer (Transbond Plus).
Main Methods:
- Forty human molars were divided into two groups, one using AdheSE One and the other Transbond Plus.
- Brackets were bonded with composite adhesive, and shear bond strength (SBS) was measured.
- Adhesive Remnant Index (ARI) scores were analyzed to determine failure modes.
Main Results:
- AdheSE One exhibited a significantly lower mean SBS (3.6 MPa) compared to Transbond Plus (5.9 MPa).
- Bracket failure modes differed significantly between the groups, with more adhesive remaining on teeth bonded with Transbond Plus.
Conclusions:
- The current shear bond strength of AdheSE One is insufficient for reliable orthodontic bracket bonding.
- Further development is required to enhance the adhesive properties of this new system for clinical use.
