The Effect of Exposure to Candida Albicans Suspension on the Properties of Silicone Dental Soft Lining Material

While functioning in the oral cavity, denture soft linings (SL) are exposed to contact with the microbiota. Dentures can offer perfect conditions for the multiplication of pathogenic yeast-like fungi, resulting in rapid colonisation of the surface of the materials used. In vitro experiments have als...

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Bibliographic Details
Published in:Materials 2024-02, Vol.17 (3), p.723
Main Authors: Chladek, Grzegorz, Nowak, Michał, Pakieła, Wojciech, Barszczewska-Rybarek, Izabela, Żmudzki, Jarosław, Mertas, Anna
Format: Article
Language:English
Subjects:
Acrylic resins
Addition polymerization
Analysis
Bond strength
Bonding strength
Clinical medicine
Crystallization
Curing
Dental materials
Dentures
Exposure
Fluorescence microscopy
Linings
Mechanical properties
Microbiota (Symbiotic organisms)
Microorganisms
Prostheses
Silicones
Stainless steel
Tensile strength
Yeast
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Summary:While functioning in the oral cavity, denture soft linings (SL) are exposed to contact with the microbiota. Dentures can offer perfect conditions for the multiplication of pathogenic yeast-like fungi, resulting in rapid colonisation of the surface of the materials used. In vitro experiments have also shown that yeast may penetrate SL. This may lead to changes in their initially beneficial functional properties. The aim of this work was to investigate the effect of three months of exposure to a suspension on the mechanical properties of SL material and its bond strength to the denture base polymer, and to additionally verify previous reports of penetration using a different methodology. Specimens of the SL material used were incubated for 30, 60 and 90 days in a suspension of strain (ATCC 10231). Their shore A hardness, tensile strength, and bond strength to acrylic resin were tested. The colonization of the surface and penetration on fractured specimens were analysed with scanning electron and inverted fluorescence microscopes. Exposure to yeast did not affect the mechanical properties. The surfaces of the samples were colonised, especially in crystallized structures of the medium; however, the penetration of hyphae and blastospores into the material was not observed.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma17030723