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The effectiveness of microwave disinfection in treating Candida-associated denture stomatitis: a systematic review and metaanalysis

Rodrigo Moreira Bringel da Costa, Rodrigo Lorenzi Poluha, Giancarlo De la Torre Canales, Joel Ferreira Santiago Junior, Paulo Cesar Rodrigues Conti, Karin Hermana Neppelenbroek, Vinicius Carvalho Porto
Clinical Oral Investigations 2020 September 24

OBJECTIVE: To evaluate the effectiveness of microwave disinfection in treating Candida-associated denture stomatitis (CADS).

MATERIALS AND METHODS: The PubMed/MEDLINE, Embase, and Scopus databases were searched for reports on randomized clinical trials (RCTs) published in English until May 2020 (PROSPERO CRD42020192062) that evaluated the treatment of CADS by using microwave disinfection. The main outcomes were the improvement of clinical signs and/or the decrease in the residual yeast present on the dentures and palatal mucosa. The mean differences, standard deviations, risk ratio, and 95% confidence interval were calculated by using the random-effects model. Heterogeneity was assessed by using Cochran's Q test and I2 values. The level of significance was set at α = 0.05.

RESULTS: Five RCTs with 245 participants were included. The descriptive investigations demonstrated that microwave disinfection was as effective (p > 0.05) as 0.2% chlorhexidine, 0.02% sodium hypochlorite, and topical nystatin (100.000 IU/mL), and was superior to topical miconazole in treating CADS. The metaanalysis did not show a statistical difference between microwave disinfection and nystatin (100.000 IU/mL) treatment in terms of mycological counts, cure, and recurrence rates (p > 0.05).

CONCLUSION: Microwave disinfection showed comparable results with those of conventional therapies for treating CADS. In addition, treatment with 650 W for 3 min once a week for 14 days had better cost-effect results, indicating both the prevention and treatment of CADS.

CLINICAL RELEVANCE: Our findings provide evidence regarding the treatment of CADS using microwave disinfection, and also indicating the best cost-effective option for this treatment modality.

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