Surface roughness of denture base and reline materials after disinfection by immersion in chlorhexidine or microwave irradiation

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMachado, Ana Lucia
dc.creatorGiampaolo, Eunice Teresinha
dc.creatorPavarina, Ana Claudia
dc.creatorJorge, Janaina Habib
dc.creatorVergani, Carlos Eduardo
dc.date2014-05-20T13:46:36Z
dc.date2016-10-25T17:00:17Z
dc.date2014-05-20T13:46:36Z
dc.date2016-10-25T17:00:17Z
dc.date2012-06-01
dc.date.accessioned2017-04-05T20:55:28Z
dc.date.available2017-04-05T20:55:28Z
dc.identifierGerodontology. Hoboken: Wiley-blackwell, v. 29, n. 2, p. E375-E382, 2012.
dc.identifier0734-0664
dc.identifierhttp://hdl.handle.net/11449/16506
dc.identifierhttp://acervodigital.unesp.br/handle/11449/16506
dc.identifier10.1111/j.1741-2358.2011.00484.x
dc.identifierWOS:000308547000055
dc.identifierhttp://dx.doi.org/10.1111/j.1741-2358.2011.00484.x
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/863285
dc.descriptionBackground: This study evaluated the effect of disinfection by immersion and microwave irradiation on the roughness of one denture base resin (Lucitone-L) and five relining materials, three hard (Tokuyama Rebase II-TR, New Truliner-NT, Ufigel Hard-UH) and two resilient (Trusoft-T, Sofreliner-S).Methods: Fifty specimens were made and divided into groups: CL2 specimens were brushed with 4% chlorhexidine (1 min), immersed in the same solution (10 min) and immersed in water (3 min); MW2 specimens were immersed in water and microwave irradiated (650W; 6 min); CL2 and MW2 specimens were disinfected twice; CL7 and MW7 specimens were submitted to seven cycles using chlorhexidine or microwave irradiation, respectively; W specimens were not disinfected and remained in water (37 degrees C; 7 days).Results: Results were statistically analysed (p = 0.05) and revealed that, at baseline, the highest mean value was observed for T (p < 0.001). Material NT showed increase in roughness after the first (p = 0.003), second (p = 0.001), seventh (p = 0.000) cycles of microwave disinfection and after 7 days of immersion in water (p = 0.033).Conclusions: Resilient liner S presented significant increase in roughness after the second cycle of disinfection with chlorhexidine (p = 0.003). Material T exhibited significantly decreased roughness in group W (p = 0.010), while microwaving produced severe alterations on its surface.
dc.languageeng
dc.publisherWiley-Blackwell
dc.relationGerodontology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectchemical compounds
dc.subjectdenture bases
dc.subjectdenture rebasing
dc.subjectmicrowaves
dc.subjectsurface properties
dc.titleSurface roughness of denture base and reline materials after disinfection by immersion in chlorhexidine or microwave irradiation
dc.typeOtro


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