Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/16565
Tipo do documento: Artigo
Título: Analysis of chemical elements and heavy metals in MTA Fillapex and AH plus
Autor: Borges, Alvaro Henrique
Guedes, Orlando Aguirre
Dorilêo, Maura Cristiane Gonçales Orçati
Bandéca, Matheus Coêlho
Estrela, Cyntia Rodrigues de Araújo
Estrela, Carlos
Abstract: Aim: The aims of this study were to analyze the chemical constitution and the presence of heavy metals in MTA Fillapex and AH Plus sealers. Methods: The main components of the sealers were analyzed by using a Scanning Electron Microscopy equipped with Energy Dispersive X-ray analysis (SEM/EDX), and the concentration of 11 heavy metals (arsenic, bismuth, cadmium, calcium, copper, chromium, iron, lead, manganese, nickel and zinc) was measured by Atomic Absorption Spectrophotometry (AAS). Results: SEM/EDX revealed that MTA Fillapex contained silicon (16.79 wt%), calcium (14.87 wt%), bismuth (18.37 wt%), carbon (17.79 wt%) and oxygen (26.29 wt%), and AH Plus, zirconium (31.16 wt%), tungsten (15.72 wt%), carbon (34.98 wt%) and oxygen (14.36 wt%). AAS revealed increased levels of arsenic, copper, chromium, iron, nickel and zinc in AH Plus, and of bismuth, calcium and lead in MTA Fillapex. Conclusions: The chemical composition of MTA Fillapex and AH Plus was in accordance to MSDS provided by manufacturers. Evidence of the presence of heavy metals was found in both root canal sealers.
Palavras-chave: Atomic absorption spectrophottry
Root canal sealers
Chemical elements
Heavy metals
Energy dispersive X-ray spectroscopy
País: Estados unidos
Unidade acadêmica: Faculdade de Odontologia - FO (RG)
Citação: BORGES, Álvaro Henrique et al. Analysis of chemical elements and heavy metals in MTA Fillapex and AH plus. OHDM: oral health and dental management, v. 13, n. 4, p. 1007-1012, Dec. 2014.
Tipo de acesso: Acesso Aberto
URI: http://repositorio.bc.ufg.br/handle/ri/16565
Data de publicação: Dez-2014
Aparece nas coleções:FM - Artigos publicados em periódicos

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