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Effect of Silicon dioxide coating of acrylic resin surfaces on Candida albicans adhesion
Silva, Rossano Vinícius Dala Rosa; Costa, Maiara Ignácio; Jarros, Isabele Carrilho; Del Bel Cury, Altair Antoninha; SidhuI, Sharanbir Kaur; Negri, Melyssa; Pascotto, Renata Corrêa.
  • Silva, Rossano Vinícius Dala Rosa; Universidade Estadual de Maringá. Department of Dentistry. Maringá. BR
  • Costa, Maiara Ignácio; Universidade Estadual de Maringá. Department of Clinical Analysis. Division of Medical Mycology. Maringá. BR
  • Jarros, Isabele Carrilho; Universidade Estadual de Maringá. Department of Clinical Analysis. Division of Medical Mycology. Maringá. BR
  • Del Bel Cury, Altair Antoninha; Universidade Estadual de Campinas. Piracicaba Dental School. Department of Prosthodontics and Periodontology. Piracicaba. BR
  • SidhuI, Sharanbir Kaur; Queen Mary University of London. Barts & The London School of Medicine and Dentistry. Centre for Oral Bioengineering. London. GB
  • Negri, Melyssa; Universidade Estadual de Maringá. Department of Clinical Analysis. Division of Medical Mycology. Maringá. BR
  • Pascotto, Renata Corrêa; Universidade Estadual de Maringá. Department of Dentistry. Maringá. BR
Braz. oral res. (Online) ; 34: e110, 2020. graf
Article in English | LILACS, BBO | ID: biblio-1132720
ABSTRACT
Abstract Acrylic resin has been used in the manufacture of prostheses, however, in the oral cavity, this material starts to retain microorganisms capable of causing gingival inflammation due its porosities. The aim of this study was to evaluate the influence of the use of silicon dioxide as a coating layer applied onto acrylic resin, on the adhesion of Candida albicans (Ca). After the incubation period in Sabouraud Dextrose Broth, a total of 1 ml of the Ca suspension was added to plate wells, each well containing a specimen of acrylic resin. The adhesion ability of Ca on acrylic resin was determined by counting colonies. Three groups (n = 6) of acrylic resin were assessed with polishing (RP); without polishing (RW); with polishing and coating layer of silicon dioxide (RPC). Ca deposited on the surface of the acrylic resin was also observed using Scanning Electron Microscopy (SEM). Statistical assessment by Kruskal-Wallis and Student-Newman-Keuls Method were done (α = 2%). There was significant difference among the groups. The RPC group showed the lowest growth, with an average of 5.59 Log CFU/cm 2 ; there was a statistically significant difference in relation to group RW, which presented a growth of 6.07 Log CFU/cm 2 and to group RP with 5.91 Log CFU/cm 2 (p < 000.1). SEM images demonstrated that in the RP and RPC group, the surface of the resin had greater regularity, and smaller number of microorganisms. The application of silicon dioxide coating on acrylic resin appears to be a promising alternative, and its use can help in reducing the adhesion of Ca in prostheses.
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Full text: Available Index: LILACS (Americas) Main subject: Candida albicans Language: English Journal: Braz. oral res. (Online) Journal subject: Dentistry Year: 2020 Type: Article Affiliation country: Brazil / United kingdom Institution/Affiliation country: Queen Mary University of London/GB / Universidade Estadual de Campinas/BR / Universidade Estadual de Maringá/BR

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Full text: Available Index: LILACS (Americas) Main subject: Candida albicans Language: English Journal: Braz. oral res. (Online) Journal subject: Dentistry Year: 2020 Type: Article Affiliation country: Brazil / United kingdom Institution/Affiliation country: Queen Mary University of London/GB / Universidade Estadual de Campinas/BR / Universidade Estadual de Maringá/BR