Influência da posição e tempo de irradiação sobre a capacidade de desinfecção em forno de micro-ondas

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dc.contributor.authorMascarenhas Oliveira, Ana Carolina
dc.contributor.authorAntunes Pereira Pinelli, Lígia [UNESP]
dc.contributor.authorBarbosa Tavares da Silva, Regina Helena [UNESP]
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:26:26Z
dc.date.available2014-05-27T11:26:26Z
dc.date.issued2012-04-01
dc.description.abstractObjective: To evaluate the variations of temperature in 2 models of domestic micro-wave ovens, single emission (F 1) and dual emission of waves (F 2), to investigate areas of higher and lower intensity of the electromagnetic field. Materials and methods: A beaker containing water (60mL, 26°C) was irradiated into each of 5 positions (front - P 1; right - P 2; posterior - P 3; left - P 4; central - P 5) within each oven (900W/ 2min). To evaluate the effectiveness of disinfection in F 2, Bacillus subtilis suspension was irradiated in each of the 5 positions for 2, 4 and 6minutes. Data were analyzed by Kruskal-Wallis and nonparametric multiple comparisons at 5% significance level. Results: 84.80°C (F 1) and 92.01°C (F 2) were mean levels of temperature. For F 1, the positions P 1, P 2, P 3 and P 5 showed similar values among them and upper than P 4, while for F 2, the positions P 1, P 2 and P 4 were similar among them and upper than P 3 and P 5. Kruskal-Wallis test found significant differences between positions and models of ovens (p<0.05). It was observed that P 2 promoted bacterial death from 4min of irradiation, while the other positions promoted disinfection at 6min of irradiation. Conclusion: The protocols of position and time specified for the various procedures in microwave ovens can be different according to the characteristics of each device due to the electromagnetic field heterogeneity. © 2011 Sociedade Portuguesa de Estomatologia e Medicina Dentária.en
dc.description.affiliationFaculdade de Odontologia de Piracicaba Universidade Estadual de Campinas (FOP/UNICAMP)
dc.description.affiliationFaculdade de Odontologia de Araraquara Universidade Estadual Paulista (FOAr/UNESP)
dc.description.affiliationUnespFaculdade de Odontologia de Araraquara Universidade Estadual Paulista (FOAr/UNESP)
dc.format.extent90-95
dc.identifierhttp://dx.doi.org/10.1016/j.rpemd.2012.02.005
dc.identifier.citationRevista Portuguesa de Estomatologia, Medicina Dentaria e Cirurgia Maxilofacial, v. 53, n. 2, p. 90-95, 2012.
dc.identifier.doi10.1016/j.rpemd.2012.02.005
dc.identifier.issn1646-2890
dc.identifier.issn1647-6700
dc.identifier.scopus2-s2.0-84861576629
dc.identifier.urihttp://hdl.handle.net/11449/73242
dc.language.isopor
dc.relation.ispartofRevista Portuguesa de Estomatologia, Medicina Dentaria e Cirurgia Maxilofacial
dc.relation.ispartofsjr0,167
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectBacillus subtilis
dc.subjectDisinfection
dc.subjectMicrowaves
dc.subjectdisinfection
dc.subjectelectromagnetic field
dc.subjectirradiation
dc.subjectmicrowave oven
dc.subjectpriority journal
dc.subjecttemperature
dc.titleInfluência da posição e tempo de irradiação sobre a capacidade de desinfecção em forno de micro-ondaspt
dc.title.alternativeInfluence of the position and irradiation time on the ability of disinfection in microwave ovenen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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