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- Title
Colonisation of soft lining materials by micro-organisms.
- Authors
Pavan, Sabrina; Dos Santos, Paulo Henrique; Filho, João Neudenir Arioli; Spolidorio, Denise Madalena Palomare
- Abstract
doi:10.1111/j.1741-2358.2009.00300.x Colonisation of soft lining materials by micro-organisms Objective: This study evaluated the in vitro adherence of pathogenic micro-organisms, Candida albicans, Staphylococcus aureus and Pseudomonas aeruginosa, to soft lining materials and their inhibitory effect on these micro-organisms. Materials and Methods: To measure adherence, specimens of Molloplast B and Ufi Gel P were inoculated [107 colony-forming units per millimetre (cfu/ml)] with TSB media containing the micro-organisms. To determine the number of micro-organisms in the 10−2–10−5 dilutions, 25 μl of the suspension were transferred to plates of selective media. Colony counts of each specimen were quantified (cfu/ml). The surface roughness was measured with a perfilometer to assess the relationship between the adherence of micro-organisms and surface roughness of each material. For the inhibition test, specimens of materials were placed in agar plates inoculated individually with the micro-organisms. After 48 h, the inhibition zones around the specimens were measured. Results: None of the materials exhibited inhibition zones. The number of cfu/ml of S. aureus and P. aeruginosa were significantly greater than C. albicans for both materials. The Ufi Gel P exhibited greater adherence of C. albicans than Molloplast B. No correlation was observed between the adherence of micro-organisms and surface roughness. Conclusion: The surface roughness of the materials is not the only factor governing micro-organism adherence.
- Subjects
PATHOGENIC microorganisms; CANDIDA albicans; STAPHYLOCOCCUS aureus; PSEUDOMONAS aeruginosa; SURFACE roughness; COLONIZATION (Ecology)
- Publication
Gerodontology, 2010, Vol 27, Issue 3, p211
- ISSN
0734-0664
- Publication type
Article
- DOI
10.1111/j.1741-2358.2009.00300.x