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Published on: July 21, 2014
Streptococcal adhesion to novel low-shrink silorane-based restorative
Ralf Buergers1, Wulf Schneider-Brachert, Sebastian Hahnel
1Department of Prosthetic Dentistry, Regensburg University Medical Centre, Regensburg, Germany. ralf.buergers@klinik.uni-regensburg.de
Summary
A new silorane-based composite resin showed significantly lower oral streptococci adhesion compared to conventional methacrylate composites. This reduced bacterial adhesion may enhance dental filling longevity and decrease recurrent caries.
Area of Science:
- Dental Materials Science
- Microbiology
- Surface Chemistry
Background:
- Dental resin composites are prone to bacterial adhesion, contributing to secondary caries.
- Understanding material surface properties is crucial for developing caries-resistant restorative materials.
Purpose of the Study:
- To compare streptococci adhesion on a novel silorane-based composite versus conventional methacrylate composites.
- To correlate adhesion differences with surface roughness and hydrophobicity.
Main Methods:
- Five resin composites (one silorane-based, four methacrylate-based) were tested.
- Surface roughness and water contact angles (hydrophobicity) were measured.
- Adhesion of four oral streptococcal strains was quantified using fluorescence assays.
Main Results:
- Silorane-based composite exhibited significantly lower streptococci adhesion for three of four strains.
- Methacrylate-based composites showed comparable and higher adhesion levels.
- Surface properties like hydrophobicity influenced bacterial adherence.
Conclusions:
- Silorane-based composites demonstrate reduced oral streptococci adhesion compared to conventional materials.
- Increased hydrophobicity of silorane composites may be responsible for lower bacterial adhesion.
- This property could lead to improved longevity of dental restorations and reduced secondary caries.
