Survival of microorganisms on complete dentures following ultrasonic cleaning combined with immersion in peroxide‐based cleanser solution

Nishi, Yasuhiro; Seto, K.; Kamashita, Yuji; Kaji, Akihito; Kurono, Asutsugu; Nagaoka, Eiichi

doi:10.1111/ger.12027

Cited by 44 publications

(82 citation statements)

References 32 publications

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“…The association of mechanical and chemical methods have been recommended for the control of denture biofilm formation, thus avoiding the development of inflammatory processes 7 , 14 , 16 , 22 . The most commonly used chemical solution is NaClO, however it can cause deleterious effects to the denture when used at 1% or 0.5% concentrations 4 , 17 , 19 , 20 .…”

Section: Discussionmentioning

confidence: 99%

Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser

et al. 2017

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The development of opportunistic infections due to poor denture hygiene conditions justified the search for effective hygiene protocols for controlling denture biofilm. Objective This study evaluated Ricinus communis and sodium hypochlorite solutions in terms of biofilm removal ability, remission of candidiasis, antimicrobial activity, and participant satisfaction.Material and Methods It was conducted a controlled clinical trial, randomized, double-blind, and crossover. Sixty-four denture wearers with (n=24) and without candidiasis (n=40) were instructed to brush (3 times/day) and immerse their dentures (20 min/day) in different storage solutions (S1 / S2: 0.25% / 0.5% sodium hypochlorite; S3: 10% R. communis; S4: Saline).The trial period for each solution was seven days and a washout period of seven days was used before starting the use of another solution. The variables were analyzed at baseline and after each trial period. The biofilm of inner surfaces of maxillary dentures was disclosed, photographed, and total and dyed areas were measured (Image Tool software). The percentage of biofilm was calculated. Remission of candidiasis was assessed by visual scale and score were attributed. Antimicrobial activity was assessed by the DNA-Checkerboard hybridization method. Patient satisfaction was measured using a questionnaire.Results S1 (4.41±7.98%) and S2 (2.93±5.23%) were more effective then S3 (6.95±10.93%) in biofilm remotion(P<0.0001). All solutions were different from the control (11.07±11.99%). S3 was the most effective solution in remission of candidiasis (50%), followed by S1 (46%). Concerning antimicrobial action, S1/S2 were similar and resulted in the lowest microorganism mean count (P=0.04), followed by S3. No significant differences were found with patient’s satisfaction.Conclusions 10% R. communis and 0.25% sodium hypochlorite were effective in biofilm removal, causing remission of candidiasis and reducing the formation of microbial colonies in denture surfaces. All solutions were approved by patients.

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Section: Discussionmentioning

confidence: 99%

Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser

et al. 2017

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“…Previous research on ultrasound for appliance disinfection used ultrasonic baths, which are usually available in most clinics and laboratories. The ultrasonic bath has been shown to be a good adjunct used in conjunction with chemical disinfection to clean dentures …”

Section: Discussionmentioning

confidence: 99%

“…Appropriate disinfection is essential to reduce the risk of cross‐contamination. The number of microorganisms attached to the denture base often reflects the denture cleaning method used . The methods of hygiene and disinfection of dentures include mechanical methods (brushing associated with a toothpaste or soap), chemical methods (soaking in disinfectant solutions), and physical‐chemical methods (ultrasound), or a combination of these methods.…”

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confidence: 99%

Investigation of Acrylic Resin Disinfection Using Chemicals and Ultrasound

Muscat

Farrugia

Camilleri

et al. 2016

Journal of Prosthodontics

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“…The methods in this study have been modified from those of previous studies by Nishi et al, 11 Nishi et al,…”

Section: Methodsmentioning

confidence: 99%

Effect of Alkaline Peroxide-type Denture Cleaners to the Microbial Profile in Maxillary Complete Denture

et al. 2018

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Objective: To investigate the effect of alkaline peroxide-type denture cleanser agents on the microbial profile, namely Streptococcus, Staphylococcus, and Candida species, in maxillary complete dentures. Methods: A total of 20 patients with maxillary complete dentures were recruited. Three denture cleanser agents were selected (n = 5): Polident ® (P); Steradent ® (S); and Pearlie White ® (PW), with distilled water (DW) as control. Dentures were brushed before immersion with denture cleansers. Denture biofilm was collected from the palatal impression surface of the denture before and after immersion. The collected microorganisms were cultured and colony-forming units (CFU) were counted. Results: Significant reduction in the numbers of Streptococcus and Staphylococcus was observed after immersion with all denture cleanser agents (p< 0.05). On the other hand, no denture cleanser was significantly effective against Candida species (p>0.05). Furthermore, S was more effective among other cleansers compared to DW (p< 0.05). Conclusion: Immersion of dentures in denture cleansers can reduce the amount of microorganisms on denture surfaces; thus, leading to effective denture hygiene. Steradent ® denture cleanser showed the highest percentage reduction of polymicrobial organisms.

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Survival of microorganisms on complete dentures following ultrasonic cleaning combined with immersion in peroxide‐based cleanser solution

Abstract: It was concluded that ultrasonic cleaning combined with immersion in a peroxide-based cleanser solution effectively reduces the quantity of micro-organisms surviving on dentures and is a suitable method for elderly individuals who find brushing their dentures difficult.

Cited by 44 publications

References 32 publications

Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser

Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser

Investigation of Acrylic Resin Disinfection Using Chemicals and Ultrasound

Effect of Alkaline Peroxide-type Denture Cleaners to the Microbial Profile in Maxillary Complete Denture

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