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Evaluation of microleakage using different bonding agents
Ricardo Maio Gagliardi1, Rander Pereira Avelar
1Department of Dentistry, School of Health Science, University of Brasília. gagliardiricardo@ig.com.br
Operative Dentistry
|November 5, 2002
Summary
This study assessed microleakage in dental restorations using various bonding agents. All tested adhesive systems showed significant leakage at dentin margins compared to the control group.
Area of Science:
- Dental Materials Science
- Restorative Dentistry
- Adhesive Dentistry
Background:
- Microleakage is a significant concern in dental restorations, potentially leading to secondary caries and pulpal issues.
- The development of effective adhesive systems is crucial for achieving durable and sealed restorations, particularly at dentin margins.
Purpose of the Study:
- To evaluate and compare the in vitro microleakage of different adhesive systems when used with resin composite in Class V cavities with dentin margins.
Main Methods:
- Forty-two human teeth were restored with seven different adhesive systems (Single Bond, Prime&Bond NT, Excite, Durafill Bond, Etch&Prime 3.0, Prompt L-Pop, and Vitremer control).
- Class V cavities with dentin margins were prepared and restored with Charisma resin composite.
- Teeth underwent thermocycling, followed by silver nitrate staining and stereomicroscopic evaluation of marginal microleakage.
Main Results:
- All tested adhesive systems demonstrated statistically significant microleakage at the dentin margins compared to the control group (Vitremer).
- No significant differences in microleakage were observed between most self-etching and one-bottle adhesive systems, with Durafill Bond being an exception.
Conclusions:
- The study highlights the challenge of achieving a complete seal at dentin margins with current adhesive systems.
- Further research into novel adhesive technologies is warranted to minimize microleakage and improve the longevity of dental restorations.