Compressive fatigue in titanium dental implants submitted to fluoride ions action

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorRibeiro, Ana Lúcia Roselino
dc.creatorNoriega, Jorge Roberto
dc.creatorDametto, Fábio Roberto
dc.creatorVaz, Luis Geraldo
dc.date2014-05-27T11:22:31Z
dc.date2016-10-25T18:24:03Z
dc.date2014-05-27T11:22:31Z
dc.date2016-10-25T18:24:03Z
dc.date2007-07-01
dc.date.accessioned2017-04-06T01:25:35Z
dc.date.available2017-04-06T01:25:35Z
dc.identifierJournal of Applied Oral Science, v. 15, n. 4, p. 299-304, 2007.
dc.identifier1678-7757
dc.identifier1678-7765
dc.identifierhttp://hdl.handle.net/11449/69761
dc.identifierhttp://acervodigital.unesp.br/handle/11449/69761
dc.identifier10.1590/S1678-77572007000400011
dc.identifierS1678-77572007000400011
dc.identifierWOS:000256794400011
dc.identifier2-s2.0-36448996617.pdf
dc.identifier2-s2.0-36448996617
dc.identifierhttp://dx.doi.org/10.1590/S1678-77572007000400011
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/890956
dc.descriptionThe aim of this study was to assess the influence of a fluoridated medium on the mechanical properties of an internal hexagon implant-abutment set, by means of compression, mechanical cycling and metallographic characterization by scanning electronic microscopy. Five years of regular use of oral hygiene with a sodium fluoride solution content of 1500 ppm were simulated, immersing the samples in this medium for 184 hours, with the solutions being changed every 12 hours. Data were analyzed at a 95% confidence level with Fisher's exact test. After the action of fluoride ions, a negative influence occurred in the mechanical cycling test performed in a servohydraulic machine (Material Test System-810) set to a frequency of 15 Hz with 100,000 cycles and programmed to 60% of the maximum resistance of static compression test. The sets tended to fracture by compression on the screw, characterized by mixed ruptures with predominance of fragile fracture, as observed by microscopy. An evidence of corrosion by pitting on sample surfaces was found after the fluoride ions action. It may be concluded that prolonged contact with fluoride ions is harmful to the mechanical properties of commercially pure titanium structures.
dc.languageeng
dc.relationJournal of Applied Oral Science
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCorrosion
dc.subjectDental implants
dc.subjectFatigue
dc.subjectFluorides
dc.subjectTitanium
dc.titleCompressive fatigue in titanium dental implants submitted to fluoride ions action
dc.typeOtro


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