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KMID : 0362420200580010014
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Journal of Korean Academy of Prosthodontics
2020 Volume.58 No. 1 p.14 ~ p.22
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The biofilm removal effect of MnO2-diatom microbubbler from the dental prosthetic surfaces: In vitro study
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Lee Eun-Hyuk
Seo Yong-Beom
Kwon Ho-Boem
Lim Young-Jun
Kong Hyun-Joon
Kim Myung-Joo
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Abstract
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Purpose: The aim of this study is to evaluate the effectiveness of MnO2-diatom microbubbler (DM) on the surface of prosthetic materials as a mouthwash by comparing the biofilm removal effect with those previously used as a mouthwash in dental clinic.
Materials and methods: DM was fabricated by doping manganese dioxide nanosheets to the diatom cylinder surface. Scanning electron microscopy (SEM) was used to observe the morphology of DM and to analyze the composition of doped MnO2. Stereomicroscope was used to observe the reaction of DM in 3% hydrogen peroxide. Non-precious metal alloys, zirconia and resin specimens were prepared to evaluate the effect of biofilm removal on the surface of prosthetic materials. And then Streptococcus mutans and Porphyromonas gingivalis biofilms were formed on the specimens. When 3% hydrogen peroxide solution and DM were treated on the biofilms, the decontamination effect was compared with chlorhexidine gluconate and 3% hydrogen peroxide solution by crystal violet staining.
Results: Manganese dioxide was found on the surface of the diatom cylinder, and it was found to produce bubble of oxygen gas when added to 3% hydrogen peroxide. For all materials used in the experiments, biofilms of the DM-treated groups got effectively removed compared to the groups used with chlorhexidine gluconate or 3% hydrogen peroxide alone.
Conclusion: MnO2-diatom microbubbler can remove bacterial membranes on the surface of prosthetic materials more effectively than conventional mouthwashes.
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KEYWORD
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Dental plaque, Hydrogen peroxide, MnO2-diatom microbubbler, Mouthwash, Oral hygiene
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