Efficacy of sodium hypochlorite and coconut soap used as disinfecting agents in the reduction of denture stomatitis, Streptococcus mutans and Candida albicans

Abstract

This study evaluated the reduction of denture stomatitis and the antimicrobial activity of 0.05% sodium hypochlorite opposed to Candida albicans and Streptococcus mutans (SGM) when associated with brushing complete dentures with coconut soap. The mucosal characteristics were evaluated according to Newton's classification at baseline, after cleansing the dentures with coconut soap for 15 days in group 1 (nine patients). In the other group (19 patients) the analysis were made before and after cleansing the dentures with coconut soap and with disinfection in a soak solution of 0.05% sodium hypochlorite for 10 min during 15 days. Microbiological tests were used to isolate C. albicans and SGM. Mann-Whitney and Wilcoxon tests were used to compare the mucosal characteristics and Fisher test and McNemar test to compare C. albicans and SGM levels. Statistical analysis at the 95% confidence level (P < 0.05) showed that: (i) the association of coconut soap and 0.05% sodium hypochlorite significantly reduced clinical signs of denture stomatitis, (ii) C. albicans did not reduce in counts, (iii) SGM were reduced but not significantly and (iv) the association of coconut soap and 0.5% sodium hypochlorite was effective in controlling denture biofilm.

Effect of cleanser solutions on the color of acrylic resins associated with titanium and nickel-chromium alloys

“…22 The materials involved in making removable partial dentures are acrylic resins and metallic alloys, which makes it difficult to institute a safe hygiene protocol. The effects of cleansers have not been widely evaluated on RPD metallic components.…”

“…4,23 Hence, 0.05% sodium hypochlorite was employed due to its antimicrobial properties. 22 The tablets and mouthwashes were included for the comparison of the methods usually employed and studied 5 and due to their antimicrobial effects. 6,24 Water was used as a control because it is indicated for overnight immersion, 5 and it prevents the release of ions.…”

Effect of repeated cycles of chemical disinfection in microhardness of acrylic resins of complete denture base

“…However, many elderly subjects are affected by diseases that limit their manual ability [3][4] , thus requiring complementation of the mechanical cleaning with chemical substances in order to avoid the accumulation of dental microbial plaque on the oral mucosa membrane and on the surfaces of dentures, what may lead to the development of several diseases, such as candidiasis [5][6] .…”

“…Among hygiene protocols we can say that mechanical cleaning is an effective method that keeps the mucosa membrane and denture clean [6][7][8] , as well as chemical hygienization, which uses solutions such as sodium hypochlorite, alkaline glutaraldehyde, aqueous formaldehyde, chlorhexidine digluconate solution, enzymatic solutions and sodium perborate solutions. An effective alternative method that has been currently used is microwave irradiation to fight several diseases and eliminate colonization by Candida albicans 4,[8][9][10][11][12] .…”

Effect of affordable disinfectant solutions on Candida albicans adhered to acrylic resin for dental prosthesis

“…However some prosthesis wearers as elderly patients and individuals with limited motor capacity have difficulty to maintain their prosthesis clean only with mechanical biofilm control [7][8][9] . For these patients is recommended the use of mechanical associated with chemical cleaning for reducing microbial biofilm accumulation on dental prosthesis [10][11] .…”