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Fluoride release from restorative materials coated with an adhesive
Letícia Algarves Miranda1, Patrícia Weidlich, Susana Maria Werner Samuel
1Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
Brazilian Dental Journal
|March 2, 2002
Summary
Dental adhesives can improve resin retention but may reduce fluoride release from restorative materials like Vitremer and Heliomolar. This study investigated the impact of adhesives on fluoride release in dental cements.
Area of Science:
- Dental Materials Science
- Biomaterials
- Restorative Dentistry
Background:
- Adhesive systems enhance the bonding of resin-modified glass ionomer cements and fluoride resins to dental tissues by forming a hybrid layer.
- Understanding the interaction between adhesives and fluoride release is crucial for optimizing dental restorations.
Purpose of the Study:
- To evaluate the effect of a dental adhesive on fluoride release from restorative materials.
- To determine if the adhesive, as part of the hybrid layer, influences fluoride ion diffusion into tooth tissues.
Main Methods:
- Three dental materials (Vitremer, Heliomolar, Z100) were tested with and without an adhesive (Scotch Bond MultiPurpose Plus).
- Fluoride release was measured daily for 20 days using a fluoride electrode in artificial saliva.
- Statistical analysis (One-way ANOVA, Student-Newman-Keuls) was performed to compare groups.
Main Results:
- The use of dental adhesive significantly decreased fluoride release from Vitremer.
- Fluoride release from Heliomolar was reduced to undetectable levels when the adhesive was applied.
- Z100's fluoride release was not specified in the provided text but was studied.
Conclusions:
- Dental adhesives can negatively impact the fluoride-releasing potential of certain resin-modified glass ionomer cements and fluoride resins.
- The formation of a hybrid layer by the adhesive may impede fluoride diffusion from the restorative material.