Abstract
Objective: The objective of this study was to evaluate the effectiveness of disinfection methods in microwave and immersion in peracetic acid in heat-cured, self-cured and microwave-cured acrylic resin, contaminated with Candida albicans. Methods: Five specimens were prepared for each type of acrylic resin. All were infected with Candida Albicans, incubated at 37°C for 24 hours. The group which underwent microwave energy was irradiated with a power of 840W for 1 minute and the other group underwent disinfection by soaking of 0.2% peracetic acid for 5 minutes. Results: All samples proved to be contaminated after the incubation period. After the different processes of disinfection, both immersion in 0.2% peracetic acid as microwave irradiation were effective in disinfection of the 3 types of acrylic resins contaminated by Candida Albicans. Conclusion: Concluded that soaking in 0,2% peracetic acid for 5 minutes with microwave irradiation power 840W for 1 minute are effective methods for disinfecting heat-cured acrylic resin, self-cured acrylic resin and microwave-cured acrylic resin, contaminated with Candida Albicans.
Highlights
The increase in the number of elderly in the world, the increasing prevalence of tooth loss, dry mouth, and the use of dental prostheses are some factors associated with increased incidence of infections Candida Albicans[1,2]
After the different processes of disinfection, both immersion in 0.2% peracetic acid as microwave irradiation were effective in disinfection of the 3 types of acrylic resins contaminated by Candida Albicans
The use of chemicals associated with the mechanical toilet brush shapes are recommended cleaning and prevention of infections1. chemical agents such as hypochlorite 1% and 2% glutaraldehyde are widely recommended disinfecting prosthesis, not ideal for this purpose because hypochlorite can interfere the aesthetics of the prosthesis, the glutaraldehyde and can be irritating and allergy causing be toxic
Summary
The increase in the number of elderly in the world, the increasing prevalence of tooth loss, dry mouth, and the use of dental prostheses are some factors associated with increased incidence of infections Candida Albicans[1,2]. The use of chemicals associated with the mechanical toilet brush shapes are recommended cleaning and prevention of infections. Microwave energy has been recommended as an effective method for disinfecting complete dentures and as an adjuvant for the treatment of stomatitis[4,6]. Suggested protocols for disinfection by microwave irradiation has showed effective at different times and potential[7]. Microwave irradiation for a time of 1 minute exposure was shown to be effective for disinfection against Candida albicans[8]
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