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Experiments on in vivo biofilm formation and in vitro adhesion of Candida species on polysiloxane liners
Author(s) -
Mutluay Mustafa Murat,
Oğuz Serra,
Ørstavik Dag,
Fløystrand Finn,
Doğan Arife,
Söderling Eva,
Närhi Timo,
Olsen Ingar
Publication year - 2010
Publication title -
gerodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 54
eISSN - 1741-2358
pISSN - 0734-0664
DOI - 10.1111/j.1741-2358.2009.00329.x
Subject(s) - biofilm , candida albicans , candida tropicalis , in vivo , microbiology and biotechnology , in vitro , colonisation , adhesion , candida glabrata , corpus albicans , saliva , medicine , biology , bacteria , materials science , colonization , composite material , biochemistry , genetics
doi:10.1111/j.1741‐2358.2009.00329.x
Experiments on in vivo biofilm formation and in vitro adhesion of Candida species on polysiloxane linersObjectives: Microorganisms may colonise polysiloxane soft liners leading to bio‐deterioration. The aim of this study was to investigate in vitro adhesion and in vivo biofilm formation of Candida species on polysiloxane surfaces. Methods: The materials used in this study were Molloplast B, GC Reline soft, Mollosil Plus, Silagum Comfort and Palapress Vario. The in vitro retention of clinical isolates of Candida albicans to the relining and denture‐base materials by microscopic (scanning electron microscopy, SEM), conventional culturing methods and antimicrobial properties of these materials were studied. Candida found on materials and mucosa following long‐term use were identified and quantified, and biofilms covering the surfaces were investigated by SEM. Results: There was a significant decrease in the number of cells attached in vitro to saliva‐coated surfaces compared with non‐treated surfaces. An oral Candida carriage of 78% was found. Candida albicans , C. glabrata , C. intermedia and C. tropicalis were identified. In vivo biofilm formation on the liners appeared as massive colonisation by microorganisms. Conclusions: The results of the in vitro experiments suggest that salivary film influences early colonisation of different C. albicans strains. The film layer also minimises the differences among different strains. The Candida carriage of these patients was similar to denture‐wearing patients without soft liners.