Publicação
Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids
| Resumo: | The dental amalgam is a metallic alloy commonly utilized as a restorative material. In this study, Electrochemical Impedance Spectroscopy, polarisation curves and Mott-Schottky analysis were used to evaluate the physical characteristics of the passive film formed on amalgam surface; X-Ray and UV spectrophotometric analyses were also used to determine the alloy phases and possible soluble corrosion products, respectively. This study was done with Duxalloy® and Tytin® Plus samples in four different electrolytes: Phosphate Buffer Saline, Hank Solution, Artificial Saliva and NaCl 0.9%. In general, the longer the immersion time, the smaller the resistance, possibly due to film breakage; Duxalloy® presented, at the end of 168 h of immersion, a higher resistance when compared to Tytin® Plus. X-Ray analysis showed differences between the two studied brands. UV spectrophotometric analysis demonstrated a small absorption band at ~276 nm. These films kept their protective properties after 168 h of immersion |
|---|---|
| Autores principais: | Alves,V. A. |
| Outros Autores: | Souza,D. G.; Reis,R. Q.; Silva,L. A. da; Rossi,A. |
| Assunto: | Dental amalgams Electrochemical Impedance Spectroscopy Corrosion, Mott-Schottky Polarisation Curves |
| Ano: | 2009 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Fundação para a Ciência e Tecnologia |
| Idioma: | inglês |
| Origem: | SciELO Portugal |
| _version_ | 1868441651323600896 |
|---|---|
| author | Alves,V. A. |
| author2 | Souza,D. G. Reis,R. Q. Silva,L. A. da Rossi,A. |
| author2_role | author author author author |
| author_facet | Alves,V. A. Souza,D. G. Reis,R. Q. Silva,L. A. da Rossi,A. |
| author_role | author |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Alves,V. A.\"},{\"Person.name\":\"Souza,D. G.\"},{\"Person.name\":\"Reis,R. Q.\"},{\"Person.name\":\"Silva,L. A. da\"},{\"Person.name\":\"Rossi,A.\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Alves,V. A. Souza,D. G. Reis,R. Q. Silva,L. A. da Rossi,A. |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Dental amalgams Electrochemical Impedance Spectroscopy Corrosion, Mott-Schottky Polarisation Curves |
| datacite.titles.title.fl_str_mv | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids |
| dc.creator.none.fl_str_mv | Alves,V. A. Souza,D. G. Reis,R. Q. Silva,L. A. da Rossi,A. |
| dc.format.none.fl_str_mv | text/html |
| dc.identifier.none.fl_str_mv | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122009000200007 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Sociedade Portuguesa de Materiais |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | Ciência & Tecnologia dos Materiais v.21 n.3-4 2009 |
| dc.subject.none.fl_str_mv | Dental amalgams Electrochemical Impedance Spectroscopy Corrosion, Mott-Schottky Polarisation Curves |
| dc.title.fl_str_mv | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The dental amalgam is a metallic alloy commonly utilized as a restorative material. In this study, Electrochemical Impedance Spectroscopy, polarisation curves and Mott-Schottky analysis were used to evaluate the physical characteristics of the passive film formed on amalgam surface; X-Ray and UV spectrophotometric analyses were also used to determine the alloy phases and possible soluble corrosion products, respectively. This study was done with Duxalloy® and Tytin® Plus samples in four different electrolytes: Phosphate Buffer Saline, Hank Solution, Artificial Saliva and NaCl 0.9%. In general, the longer the immersion time, the smaller the resistance, possibly due to film breakage; Duxalloy® presented, at the end of 168 h of immersion, a higher resistance when compared to Tytin® Plus. X-Ray analysis showed differences between the two studied brands. UV spectrophotometric analysis demonstrated a small absorption band at ~276 nm. These films kept their protective properties after 168 h of immersion |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | scielopt_d0ba25cdb7650d4cc42e8a5fce78e3a9 |
| identifier.url.fl_str_mv | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122009000200007 |
| instacron_str | SciELO |
| institution | Fundação para a Ciência e Tecnologia |
| instname_str | Fundação para a Ciência e Tecnologia |
| language | eng |
| network_acronym_str | scielopt |
| network_name_str | SciELO Portugal |
| oai_identifier_str | oai:scielo:S0870-83122009000200007 |
| organization_str_mv | urn:organizationAcronym:scielo |
| person_str_mv | Alves,V. A. Souza,D. G. Reis,R. Q. Silva,L. A. da Rossi,A. |
| publishDate | 2009 |
| publisher.none.fl_str_mv | Sociedade Portuguesa de Materiais |
| reponame_str | SciELO Portugal |
| repository_id_str | urn:repositoryAcronym:scielopt |
| service_str_mv | urn:repositoryAcronym:scielopt |
| spelling | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluidsAlves,V. A.Souza,D. G.Reis,R. Q.Silva,L. A. daRossi,A.Dental amalgamsElectrochemical Impedance SpectroscopyCorrosion, Mott-SchottkyPolarisation Curvesopen accesshttp://purl.org/coar/access_right/c_abf2http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122009000200007URLhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122009000200007URLHasVersion2009-07-01The dental amalgam is a metallic alloy commonly utilized as a restorative material. In this study, Electrochemical Impedance Spectroscopy, polarisation curves and Mott-Schottky analysis were used to evaluate the physical characteristics of the passive film formed on amalgam surface; X-Ray and UV spectrophotometric analyses were also used to determine the alloy phases and possible soluble corrosion products, respectively. This study was done with Duxalloy® and Tytin® Plus samples in four different electrolytes: Phosphate Buffer Saline, Hank Solution, Artificial Saliva and NaCl 0.9%. In general, the longer the immersion time, the smaller the resistance, possibly due to film breakage; Duxalloy® presented, at the end of 168 h of immersion, a higher resistance when compared to Tytin® Plus. X-Ray analysis showed differences between the two studied brands. UV spectrophotometric analysis demonstrated a small absorption band at ~276 nm. These films kept their protective properties after 168 h of immersionSociedade Portuguesa de MateriaisCiência & Tecnologia dos Materiais v.21 n.3-4 2009text/htmlengjournal articlehttp://purl.org/coar/resource_type/c_6501literature |
| spellingShingle | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids Alves,V. A. Dental amalgams Electrochemical Impedance Spectroscopy Corrosion, Mott-Schottky Polarisation Curves |
| status | SINGLETON |
| subject.fl_str_mv | Dental amalgams Electrochemical Impedance Spectroscopy Corrosion, Mott-Schottky Polarisation Curves |
| title | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids |
| title_full | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids |
| title_fullStr | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids |
| title_full_unstemmed | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids |
| title_short | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids |
| title_sort | Electrochemical impedance applied to the corrosion behavior of dental amalgams in synthetic physiological fluids |
| topic | Dental amalgams Electrochemical Impedance Spectroscopy Corrosion, Mott-Schottky Polarisation Curves |
| topic_facet | Dental amalgams Electrochemical Impedance Spectroscopy Corrosion, Mott-Schottky Polarisation Curves |
| url | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-83122009000200007 |
| visible | 1 |