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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/56365
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dc.creatorNathália Bahia Mirandapt_BR
dc.creatorJosé Alcides Almeida de Arrudapt_BR
dc.creatorSandra Barbosa Moraes de Almeidapt_BR
dc.creatorEmerson Gomes dos Santospt_BR
dc.creatorIgor Studart Medeirospt_BR
dc.creatorAmália Morenopt_BR
dc.date.accessioned2023-07-16T18:18:18Z-
dc.date.available2023-07-16T18:18:18Z-
dc.date.issued2019-03-27-
dc.citation.volume122pt_BR
dc.citation.issue2pt_BR
dc.citation.spage168pt_BR
dc.citation.epage175pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.prosdent.2019.01.020pt_BR
dc.identifier.issn00223913pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/56365-
dc.description.resumoStatement of problem Maxillofacial elastomers undergo physical and mechanical degradation with disinfecting solutions. Solutions of Brazilian green propolis extract may be suitable alternatives for infection control of maxillofacial prostheses. However, their effects on the properties of the material are unknown. Purpose The purpose of this in vitro study was to evaluate the effect of disinfection with solutions of Brazilian green propolis extract on the transmittance, translucency parameter, contrast ratio, and hardness of 2 maxillofacial elastomers (MDX4-4210 and MED-4014). Material and methods Fifty disk-shaped specimens (3×10 mm) of each elastomer were randomly and equally divided into 4 groups of disinfectant agents and 1 control group: 3 separate groups of 11% green propolis extracts including aqueous (PAQ), glycolic (PGL), and alcoholic (PAL), a 2% chlorhexidine gluconate (CHX) group, and the control group of distilled water. Specimens were subjected to disinfection by immersion 3 times a week for 60 days. Color differences (ΔE values) were calculated with CIELab and CIEDE2000 formulas. Optical parameters and Shore A hardness were determined at 2 time points: at baseline and after the period of specimen disinfection. Data were analyzed by parametric and nonparametric analysis of variance and by multiple-comparison tests (α=.05). Results The ΔE values of specimens immersed in 11% PAL were not clinically acceptable for either elastomer. Regarding translucency parameter and contrast ratio, the immersion in 11% PAL and 11% PGL resulted in greater opacity and lower translucency of the material. Mean Shore A hardness values were not statistically significantly different at baseline or after 60 days of immersion in the solutions. Conclusions The solution of Brazilian green propolis extract tested showed changes in optical parameters. Elastomers immersed in 11% alcoholic green propolis extract showed clinically unacceptable color and translucency changes. All hardness values of the tested elastomers were clinically acceptable after immersion in all tested disinfectant groupspt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFAO - DEPARTAMENTO DE CLÍNICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of Prosthetic Dentistrypt_BR
dc.rightsAcesso Restritopt_BR
dc.subject.otherPropolispt_BR
dc.subject.otherInfection controlpt_BR
dc.subject.otherDisinfectionpt_BR
dc.subject.otherOptical Imagingpt_BR
dc.subject.otherHardnesspt_BR
dc.subject.otherElastic tissuept_BR
dc.subject.otherDisinfectantspt_BR
dc.titleOptical parameters and hardness of two maxillofacial elastomers after immersion in different brazilian green propolis extract solutionspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.thejpd.org/article/S0022-3913(19)30101-5/fulltextpt_BR
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