2007
DOI: 10.1590/s1517-70762007000200007
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Liberação in vivo de íons metálicos por mini-implantes ortodônticos de Ti-6Al-4V

Abstract: Mini-implantes ortodônticos de Ti-6Al-4V podem liberar íons metálicos devido à corrosão in vivo da liga em fluidos corporais. Os produtos de corrosão liberados podem favorecer a ocorrência de efeitos indesejáveis no corpo humano. O objetivo deste estudo foi determinar as concentrações de titânio, alumínio e vanádio nos órgãos de coelhos (rins, fígado e pulmões), após a inserção de mini-implantes ortodônticos fabricados a partir da liga Ti-6Al-4V. Dezoito coelhos da raça Nova Zelândia tiveram quatro mini-implan… Show more

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Cited by 3 publications
(2 citation statements)
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“…Besides, the ions carry an electrical charge and easily bond with natural proteins changing their functions 14 . The oxide formed on the Ti6Al4V alloy surface that is responsible by its relatively chemical stability when in contact with the body fluids, is composed by TiO 2 and Al 2 O 3 , therefore, the ions Al and Ti are more susceptible to be released from the alloy 15 . Since the AIN-93G diet did not contain aluminum in its composition as well as the feed accessories, is possible to suggest that the titanium alloy as the source for the Aluminum in the tissue isolated from the heart of the animal injected with this alloy.…”
Section: Resultsmentioning
confidence: 99%
“…Besides, the ions carry an electrical charge and easily bond with natural proteins changing their functions 14 . The oxide formed on the Ti6Al4V alloy surface that is responsible by its relatively chemical stability when in contact with the body fluids, is composed by TiO 2 and Al 2 O 3 , therefore, the ions Al and Ti are more susceptible to be released from the alloy 15 . Since the AIN-93G diet did not contain aluminum in its composition as well as the feed accessories, is possible to suggest that the titanium alloy as the source for the Aluminum in the tissue isolated from the heart of the animal injected with this alloy.…”
Section: Resultsmentioning
confidence: 99%
“…FIGURA 3: Interação entre o titânio e os fluidos corporais (Balazic et al, 2007). Morais et al (2007)…”
Section: Requisitos Necessários a Um Biomaterialsunclassified