Hardness evaluation of prosthetic silicones containing opacifiers following chemical disinfection and accelerated aging

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorGoiato, Marcelo Coelho
dc.creatorHaddad, Marcela Filié
dc.creatorSantos, Daniela Micheline dos
dc.creatorPesqueira, Aldieris Alves
dc.creatorMoreno, Amália
dc.date2014-05-27T11:24:44Z
dc.date2016-10-25T18:28:48Z
dc.date2014-05-27T11:24:44Z
dc.date2016-10-25T18:28:48Z
dc.date2010-07-01
dc.date.accessioned2017-04-06T01:41:56Z
dc.date.available2017-04-06T01:41:56Z
dc.identifierBrazilian Oral Research, v. 24, n. 3, p. 303-308, 2010.
dc.identifier1806-8324
dc.identifier1807-3107
dc.identifierhttp://hdl.handle.net/11449/71773
dc.identifierhttp://acervodigital.unesp.br/handle/11449/71773
dc.identifierS1806-83242010000300008
dc.identifier2-s2.0-77957931277.pdf
dc.identifier2-s2.0-77957931277
dc.identifier0000-0002-3800-3050
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242010000300008
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/892706
dc.descriptionWe evaluated the effects of disinfection and aging on the hardness of silicones containing opacifiers and intended for use in facial prosthetics. A total of 90 samples were produced using a cylindrical metal mold 3 mm in height and 30 mm in diameter. The samples were fabricated from Silastic MDX 4-4210 silicone in three groups: GI contained no opacifier, GII contained barium sulfate (Ba), and GIII contained titanium dioxide (Ti). The samples were disinfected using effervescent tablets (Ef), neutral soap (Ns), or 4% chlorhexidine (Cl) 3 times a week for 60 days. After this period the samples underwent 1,008 hours of accelerated aging. The hardness was measured using a durometer immediately following the disinfection period and after 252, 504, and 1,008 hours of aging. The data were statistically analyzed using 3-way ANOVA and the Tukey test (p < .05). The GIII group exhibited the greatest variation in hardness regardless of elapsed time. All groups displayed greater hardness after 1,008 hours of accelerated aging independent of disinfectant type. All of the hardness values were within the clinically acceptable range.
dc.languageeng
dc.relationBrazilian Oral Research
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDisinfection
dc.subjectHardness
dc.subjectMaxillofacial prosthesis
dc.subjectantiinfective agent
dc.subjectbarium sulfate
dc.subjectdimeticone
dc.subjecttitanium
dc.subjectchemistry
dc.subjectdisinfection
dc.subjectdrug effect
dc.subjecthardness
dc.subjectmaterials testing
dc.subjectmaxillofacial prosthesis
dc.subjectsurface property
dc.subjecttime
dc.subjectAnti-Infective Agents
dc.subjectBarium Sulfate
dc.subjectDimethylpolysiloxanes
dc.subjectHardness Tests
dc.subjectMaterials Testing
dc.subjectMaxillofacial Prosthesis
dc.subjectSurface Properties
dc.subjectTime Factors
dc.subjectTitanium
dc.titleHardness evaluation of prosthetic silicones containing opacifiers following chemical disinfection and accelerated aging
dc.typeOtro


Este ítem pertenece a la siguiente institución