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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.identifier.citationRevista Portuguesa de Estomatologia, Medicina Dentaria e Cirurgia Maxilofacial, v. 53, n. 2, p. 90-95, 2012.
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.relation.ispartofRevista Portuguesa de Estomatologia, Medicina Dentaria e Cirurgia Maxilofacial
dc.subjectBacillus subtilis
dc.subjectelectromagnetic field
dc.subjectmicrowave oven
dc.subjectpriority journal
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.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
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.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt
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