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Composite bond strength to enamel with self-etching primers
Guilherme Carpena Lopes1, Fabiano C Marson, Luiz Clovis Cardoso Vieira
1Department of Operative Dentistry, Universidade Federal de Santa Catarina, Florianópolis, Brazil. guilherme_lopes@ig.com.br
Operative Dentistry
|July 29, 2004
Summary
Clearfil SE Bond (SE) demonstrated comparable enamel shear bond strength (SBS) to the total-etch control (SB). Other self-etching primer systems showed varied SBS, suggesting composition influences performance.
Area of Science:
- Dental Materials Science
- Adhesive Dentistry
Background:
- Self-etching primer/adhesive systems offer simplified application in dental restorations.
- Understanding the shear bond strength (SBS) of these systems to enamel is crucial for clinical longevity.
Purpose of the Study:
- To compare the enamel SBS of five self-etching primer/adhesive systems against one total-etch control.
- To evaluate the influence of different self-etching system compositions on bond strength.
Main Methods:
- Sixty bovine incisors were divided into six groups (n=10) for testing.
- Five self-etching systems (Adper Prompt, OptiBond Solo Plus, AdheSE, Tyrian, Clearfil SE Bond) and one total-etch system (Single Bond) were used.
- Specimens underwent 500 thermal cycles before shear bond strength testing using an Instron.
Main Results:
- Significant differences in SBS were observed among the tested systems (p<0.0001).
- Clearfil SE Bond (SE) exhibited SBS comparable to the total-etch control (Single Bond, SB).
- Adper Prompt (AD) and AdheSE (AS) showed intermediate SBS, while OptiBond Solo Plus (OP) and Tyrian (TY) had the lowest SBS.
Conclusions:
- The shear bond strength of self-etching primer systems to enamel varies significantly.
- Clearfil SE Bond (SE) is a promising self-etching option with bond strength similar to conventional total-etch systems.
- Enamel bond strength appears to be dependent on the specific chemical composition of the self-etching primer/adhesive system.