Effect of Microwave Energy on Fungal Growth of Resilient Denture Liner Material

Meşe, Ayşe; Meşe, Sevim

doi:10.1080/13102818.2007.10817422

Cited by 7 publications

(6 citation statements)

References 12 publications

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“…This was attributed to biofilm formation, as C. albicans nullified the toxic effect of sodium perborate and survived even after 5 min of exposure. This agreed with the findings of the previous studies by Dills et al and Drake et al [32,38]. They both identified that alkaline peroxide denture cleansers are effective against the streptococcus species and do not show much activity against C. albicans.…”

Section: Discussionsupporting

confidence: 93%

“…Our study found that microwave-disinfected samples displayed a significantly decreased CFU count of C. albicans at 3 min of exposure. Previous studies revealed that microwave disinfection initiates a change in the structure and permeability of the fungal cells, resulting in alterations in cell metabolism, causing cell death [32][33][34]. These results agree with the outcomes of the study conducted by Al-Saadi et al [28].…”

Section: Discussionsupporting

confidence: 90%

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Antifungal Efficacy of Sodium Perborate and Microwave Irradiation for Surface Disinfection of Polymethyl Methacrylate Polymer

et al. 2022

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Various disinfecting agents showing variable success in disinfecting polymethyl methacrylate (PMMA) are available. The aim of our study was to evaluate the antifungal efficacy of sodium perborate (denture cleaning tablet-DC), microwave irradiation, and their combination for eradicating candida albicans (C. albicans) from polymethyl methacrylate (PMMA) denture base polymer. One hundred and sixty-eight PMMA resin specimens (30 × 30 × 15 mm) were divided into four groups, including control (no disinfection), microwave disinfection in distilled water (MW-DW), sodium perborate with distilled water (DC-DW), and a combination of MW-DC-DW (n = 10). Biofilms of C. albicans were cultured on the PMMA resin denture base specimens for 96 h. The samples were exposed to three different antifungal regimes, i.e., MW, denture cleaning agent-sodium perborate (DC) and DW, and a combination of MW-DC-DW for 1 to 5 min. Scanning electron microscopy (SEM) was performed to evaluate colony formation. The colony-forming units (CFU) among the experimental groups were assessed using ANOVA, a Kruskal–Wallis test, and a Mann–Whitney test. The mean CFU values were compared with the control for each disinfecting regime at 96 h growth time. For MW-DC-DW, the CFU were significantly low at 2 and 3 min of exposure when compared with the control (DW) (p < 0.05). For the MW-DW treated group, the CFU were significantly low at 3 min of exposure when compared with the control (DW) (p < 0.05). It was also found that for DC-DW, the CFU were significantly low at 5 minutes when compared with the control specimens (DW) (p < 0.05). Microwave disinfection in combination with sodium perborate is a more effective disinfecting regime against C. albicans than that of microwave disinfection and sodium perborate alone.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 90%

Antifungal Efficacy of Sodium Perborate and Microwave Irradiation for Surface Disinfection of Polymethyl Methacrylate Polymer

et al. 2022

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“…Because of that the most effective preventive and curative treatment for pathogens is believed, denture cleansers have been studied to identify the ideal product. (10) Dentures can be cleaned mechanically, chemically or through a combination of these. (11) Chlorhexidine gluconate is a cationic oral antiseptic agent with bactericidal activity and acts by destabilizing and penetrating in bacterial cell membranes.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Different Disinfectant Solutions on Shear Bond Strength of Acrylic Teeth to Flexible Denture Base Material

Al-Takai¹

2014

RDENTJ

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Aims: is to evaluate the effect of three different disinfectant solutions on shear bond strength of artificial acrylic teeth for retention to flexible denture base material at three different periods of time. Materials and Methods: The total number of samples was (60) divided into 4 groups according to the three chemical disinfectant solution which used and the control distilled water group: Group(I) vinegar group, Group(II) salt group , Group(III) Chlorohexidine group , Group (IV) the control distilled water group, where each group was subdivided into three subgroups according to disinfection periods which are 1week, 1month and 3month where each group contain five samples. The samples of shear bond strength test were consist of acrylic teeth with T-shape design for retention attached to rod of valplast The test was performed using a Universal testing machine. ANOVA, DuncunP , P s multiple range and Post Hoc Tests were carried out to determine the significant difference at p ≤ 0.01%. Results: The results appeared that control distilled water group has the highest value for the three periods of disinfection (1 week,1month,3months), while vinegar solution group has the least value. The results showed that there were significant differences between the four tested groups and also there were significant differences among all periods of time of disinfections. Conclusion: There was a significant difference of shear bond strength between artificial teeth and flexible denture base material after disinfection in the four disinfectant solutions for all periods of time of immersion. Vinegar group had highest effect on the bond strength while the distilled water group had the least effect after all periods of time of disinfections. Shear bond strength decreased with increasing the time immersion. The shear bond strength was lowest in chloherxidine group as the time of immersion increase when compared with the two other groups of disinfection solutions in this study.

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“…Likewise, using an unmodified domestic microwave oven with a rotating table, Baysan et al (1998) observed that microwave irradiation at 650W for 5 minutes promoted a reduction in the quantity of C. albicans and S. aureus present in resilient relining materials. The study of Meşe & Meşe (2007) also investigated the effect of microwave energy on the growth of C. albicans in resilient relining material and verified the reduction in the colony counts of the fungus after dry exposure to microwaves for 5 minutes (650W). The results obtained with the aforementioned microbiological studies, in which the test specimens or dentures were irradiated in a dry state, are variable with regard to the effectiveness of disinfection by microwaves.…”

Section: Microbiological Effectiveness and Recommended Protocolsmentioning

confidence: 99%