dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Estadual de Ponta Grossa (UEPG)
dc.date.accessioned2014-05-20T13:46:27Z
dc.date.available2014-05-20T13:46:27Z
dc.date.created2014-05-20T13:46:27Z
dc.date.issued2012-06-01
dc.identifierGerodontology. Hoboken: Wiley-blackwell, v. 29, n. 2, p. E571-E576, 2012.
dc.identifier0734-0664
dc.identifierhttp://hdl.handle.net/11449/16443
dc.identifier10.1111/j.1741-2358.2011.00520.x
dc.identifierWOS:000308547000081
dc.identifier8867670539105403
dc.identifier3003130522427820
dc.identifier8000248781842587
dc.identifier5737127334248549
dc.identifier0000-0002-7375-4714
dc.description.abstractObjective: The aim of the study was to evaluate the effect of long-term disinfection procedures on the Vickers hardness (VHN) of acrylic resin denture teeth.Material and methods: Five acrylic resin denture teeth (Vipi Dent Plus-V, Trilux-T, Biolux-B, Postaris-P and Artiplus-A) and one composite resin denture teeth (SR-Orthosit-O) were embedded in heat-polymerised acrylic resin within polyvinylchloride tubes. Specimens were stored in distilled water at 37 degrees C for 48 h. Measurements of hardness were taken after the following disinfection procedures: immersion for 7 days in 4% chlorhexidine gluconate or in 1% sodium hypochlorite (CIm and HIm group, respectively) and seven daily cycles of microwave sterilisation at 650 W for 6 min (MwS group). In the WIm group, specimens were maintained in water during the time used to perform the disinfection procedures (7 days). Data were analysed with ANOVA followed by the Bonferroni procedure (alpha = 0.01).Results: Microwave disinfection decreased the hardness of all acrylic resin denture teeth (p < 0.001). Immersion for 7 days in 4% chlorhexidine gluconate or distilled water had significant effect on the hardness of the acrylic resin denture teeth A (p < 0.01), and 1% sodium hypochlorite on teeth T (p < 0.01). All disinfection procedures decrease the hardness of the composite resin denture teeth (p < 0.01). Teeth O exhibited the highest and teeth V the lowest hardness values in the control group (p < 0.01).Conclusions: Disinfection procedures changed the hardness of resin denture teeth.
dc.languageeng
dc.publisherWiley-Blackwell
dc.relationGerodontology
dc.relation1.439
dc.relation0,627
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectacrylic resin denture teeth
dc.subjectVickers hardness
dc.subjectacrylic resin dentures
dc.subjectsterilisation
dc.titleThe effect of long-term disinfection procedures on hardness property of resin denture teeth
dc.typeArtículos de revistas


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