In vitro antifungal action of different substances over microwaved-cured acrylic resins

Autor: Henrique Montagner, Francisco Montagner, Katia Olmedo Braun, Paulo Edelvar Correa Peres, Brenda Paula Figueiredo de Almeida Gomes
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Zdroj: Journal of Applied Oral Science, Vol 17, Iss 5, Pp 432-435 (2009)
Druh dokumentu: article
ISSN: 1678-7757
1678-7765
DOI: 10.1590/S1678-77572009000500015
Popis: OBJECTIVE: The presence of Candida albicans on the surfaces of denture-base acrylic resins is strongly related to the development of oral stomatitis. This study evaluated the antifungal action of different agents over microwave-cured acrylic resin without polishing specimens previously contaminated with Candida albicans. MATERIAL AND METHODS: Sixty specimens were immersed in BHI broth previously inoculated with the yeast and stored for 3 h at 37ºC. They were divided into 5 experimental groups (n=10): G1: 2% chlorhexidine solution (10 min); G2: 0.5% sodium hypochlorite (10 min); G3: modified sodium hypochlorite (10 min); G4: effervescent agent (5 min); G5: hydrogen peroxide 10v (30 min). The specimens of the control group 1 (C1) were not disinfected. Ten additional specimens of the control group 2 (C2) were not infected with the yeast, aiming to check the asepsis during the experiment. The disinfection agents were neutralized and the acrylic resin specimens were immersed in BHI Broth for 24 h. Culture media turbidity was evaluated spectrophotometrically according to the transmittance degree, i.e. the higher the transmittance the stronger the antimicrobial action. Statistical analysis was performed (Kruskal-Wallis Test, p
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