Chemical And Structural Analyses Of Titanium Plates Retrieved From Patients.

dc.creatorPinto, C M S A
dc.creatorAsprino, L
dc.creatorde Moraes, M
dc.date2015-Feb
dc.date2015-11-27T13:46:19Z
dc.date2015-11-27T13:46:19Z
dc.date.accessioned2018-03-29T01:23:44Z
dc.date.available2018-03-29T01:23:44Z
dc.identifierInternational Journal Of Oral And Maxillofacial Surgery. , 2015-Feb.
dc.identifier1399-0020
dc.identifier10.1016/j.ijom.2014.12.014
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/25735535
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/202176
dc.identifier25735535
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1302409
dc.descriptionThe aim of this study was to evaluate the microscopic structure and chemical composition of titanium bone plates and screws retrieved from patients with a clinical indication and to relate the results to the clinical conditions associated with the removal of these devices. Osteosynthesis plates and screws retrieved from 30 patients between January 2010 and September 2013 were studied by metallographic, gas, and energy dispersive X-ray (EDX) analyses and the medical records of these patients were reviewed. Forty-eight plates and 238 screws were retrieved. The time elapsed between plate and screw insertion and removal ranged between 11 days and 10 years. Metallographic analysis revealed that all the plates were manufactured from commercially pure titanium (CP-Ti). The screw samples analyzed consisted of Ti-6Al-4V alloy, except four samples, which consisted of CP-Ti. Titanium plates studied by EDX analysis presented greater than 99.7% titanium by mass. On gas analysis of Ti-6Al-4V screws, three samples were outside the standard values. One CP-Ti screw sample and one plate sample also presented an oxygen analysis value above the standard. The results indicated that the physical properties and chemical compositions of the plates and screws did not correspond with the need to remove these devices or the time of retention.
dc.description
dc.description
dc.languageeng
dc.relationInternational Journal Of Oral And Maxillofacial Surgery
dc.relationInt J Oral Maxillofac Surg
dc.rightsfechado
dc.rightsCopyright © 2015 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
dc.sourcePubMed
dc.subjectBone Plates
dc.subjectBone Screws
dc.subjectFixation Devices – Internal
dc.subjectFracture Fixation – Internal
dc.subjectOrthognathic Surgery
dc.subjectTitanium
dc.titleChemical And Structural Analyses Of Titanium Plates Retrieved From Patients.
dc.typeArtículos de revistas


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