In vitro antifungal action of different substances over microwaved-cured acrylic resins
J. appl. oral sci
;
17(5): 432-435, Sept.-Oct. 2009. graf
Article
in English
| LILACS
| ID: lil-531392
ABSTRACT
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 ANDMETHODS:
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 percent chlorhexidine solution (10 min); G2 0.5 percent 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<0.05).RESULTS:
The results, represented by the medians, were G1 = 40; G2 = 100; G3 = 100; G4 = 90; G5 = 100; C1 = 40; C2 = 100.CONCLUSIONS:
This in vitro study suggested that sodium hypochlorite-based substances and hydrogen peroxide are more efficient disinfectants against C. albicans than 2 percent chlorhexidine solution and the effervescent agent.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Acrylic Resins
/
Dental Disinfectants
/
Dental Materials
/
Microwaves
/
Antifungal Agents
Limits:
Humans
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2009
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Federal University of Santa Maria/BR
/
University of Campinas/BR
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