Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterization

Detalhes bibliográficos
Autor(a) principal: E´Gues, Miguel Menezes
Data de Publicação: 2008
Outros Autores: De Paula, Márcio, Goissis, Gilberto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista odonto ciência (Online)
Texto Completo: https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/1120
Resumo: Purpose: This study aimed to prepare and characterize a new collagen composite with silicate and hydroxyapatite as a potential endodontic material for pulp capping and pulpotomy. Methods: Anionic type I collagen was mixed with silicate (White Portland cement) and hydroxyapatite in several proportions. The materials were characterized by standard differential scanning calorimetry, thermogravimetry, scanning electron microscopy (SEM), energy dispersion x-ray, and infrared spectrometry. Results: The presence of collagen in the composite was observed by means of typical thermal transitions for collagen type I (∼48ºC), independently from the proportion used. SEM images showed collagen fibers interconnecting silicate particles. The chemical composition of all collagen composites was essentially the same as that of the original silicate. Conclusion: These results showed that the collagen matrix structure of the tested composite was not altered, which is an important feature for a “more natural” tissue repair in Endodontics. Key words: Collagen; silicate; hudroxyapatite; endodontics
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spelling Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterizationCompósito de colágeno com silicato e hidroxiapatita como material para endodontia: preparação e caracterizaçãoCollagensilicatehydroxyapatiteEndodonticsPulp cappingPurpose: This study aimed to prepare and characterize a new collagen composite with silicate and hydroxyapatite as a potential endodontic material for pulp capping and pulpotomy. Methods: Anionic type I collagen was mixed with silicate (White Portland cement) and hydroxyapatite in several proportions. The materials were characterized by standard differential scanning calorimetry, thermogravimetry, scanning electron microscopy (SEM), energy dispersion x-ray, and infrared spectrometry. Results: The presence of collagen in the composite was observed by means of typical thermal transitions for collagen type I (∼48ºC), independently from the proportion used. SEM images showed collagen fibers interconnecting silicate particles. The chemical composition of all collagen composites was essentially the same as that of the original silicate. Conclusion: These results showed that the collagen matrix structure of the tested composite was not altered, which is an important feature for a “more natural” tissue repair in Endodontics. Key words: Collagen; silicate; hudroxyapatite; endodonticsObjetivo: Este trabalho teve por objetivo preparar e caracterizar um novo compósito de colágeno com silicato e hidroxiapatita que possa vir a ser utilizado como material endodôntico em capeamento pulpar direto e em pulpotomia. Metodologia: Os materiais utilizados como matéria-prima foram colágeno do tipo I na forma aniônica, silicato (cimento Portland Branco) e hidroxiapatita sintetizada. Estes materiais foram misturados em proporções variadas de modo a obter um material compósito na forma de pasta. Os materiais obtidos foram caracterizados por técnicas de calorimetria exploratória diferencial, termogravimetria, microscopia eletrônica de varredura (MEV), espectrometria de dispersão de energia de Raios-X e espectroscopia na região do infravermelho. Resultados: A presença de colágeno no compósito foi demonstrada por transições térmicas típicas daquelas encontradas para o colágeno do tipo I (∼48ºC), independentemente da proporção utilizada, e também por imagens de MEV, onde as fibras colagênicas também puderam ser observadas interligando as partículas de silicato. A composição química de todos compósitos de colágeno foi praticamente idêntica à do silicato utilizado. Conclusão: Os resultados mostraram que a estrutura da matriz de colágeno nos compósitos testados não foi alterada. Esta é uma característica importante para a utilização em endodontia do material compósito proposto, objetivando uma reparação tecidual de forma “mais natural”. Palavras-chave: Colágeno; silicatos; compósitos; endodontiaEDIPUCRS - Editora Universitária da PUCRS2008-06-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articlein vitro; descriptiveapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/1120Revista Odonto Ciência; Vol. 23 No. 2 (2008); 134 - 140Revista Odonto Ciência; v. 23 n. 2 (2008); 134 - 1401980-65230102-9460reponame:Revista odonto ciência (Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSenghttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/1120/3032E´Gues, Miguel MenezesDe Paula, MárcioGoissis, Gilbertoinfo:eu-repo/semantics/openAccess2013-11-18T10:48:09Zoai:ojs.revistaseletronicas.pucrs.br:article/1120Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2013-11-18T10:48:09Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterization
Compósito de colágeno com silicato e hidroxiapatita como material para endodontia: preparação e caracterização
title Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterization
spellingShingle Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterization
E´Gues, Miguel Menezes
Collagen
silicate
hydroxyapatite
Endodontics
Pulp capping
title_short Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterization
title_full Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterization
title_fullStr Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterization
title_full_unstemmed Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterization
title_sort Collagen composite with silicate and hydroxyapatite as endodontic material: preparation and characterization
author E´Gues, Miguel Menezes
author_facet E´Gues, Miguel Menezes
De Paula, Márcio
Goissis, Gilberto
author_role author
author2 De Paula, Márcio
Goissis, Gilberto
author2_role author
author
dc.contributor.author.fl_str_mv E´Gues, Miguel Menezes
De Paula, Márcio
Goissis, Gilberto
dc.subject.por.fl_str_mv Collagen
silicate
hydroxyapatite
Endodontics
Pulp capping
topic Collagen
silicate
hydroxyapatite
Endodontics
Pulp capping
description Purpose: This study aimed to prepare and characterize a new collagen composite with silicate and hydroxyapatite as a potential endodontic material for pulp capping and pulpotomy. Methods: Anionic type I collagen was mixed with silicate (White Portland cement) and hydroxyapatite in several proportions. The materials were characterized by standard differential scanning calorimetry, thermogravimetry, scanning electron microscopy (SEM), energy dispersion x-ray, and infrared spectrometry. Results: The presence of collagen in the composite was observed by means of typical thermal transitions for collagen type I (∼48ºC), independently from the proportion used. SEM images showed collagen fibers interconnecting silicate particles. The chemical composition of all collagen composites was essentially the same as that of the original silicate. Conclusion: These results showed that the collagen matrix structure of the tested composite was not altered, which is an important feature for a “more natural” tissue repair in Endodontics. Key words: Collagen; silicate; hudroxyapatite; endodontics
publishDate 2008
dc.date.none.fl_str_mv 2008-06-22
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
in vitro; descriptive
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/1120
url https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/1120
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/1120/3032
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
dc.source.none.fl_str_mv Revista Odonto Ciência; Vol. 23 No. 2 (2008); 134 - 140
Revista Odonto Ciência; v. 23 n. 2 (2008); 134 - 140
1980-6523
0102-9460
reponame:Revista odonto ciência (Online)
instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron:PUC_RS
instname_str Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron_str PUC_RS
institution PUC_RS
reponame_str Revista odonto ciência (Online)
collection Revista odonto ciência (Online)
repository.name.fl_str_mv Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
repository.mail.fl_str_mv ||odontociencia@pucrs.br
_version_ 1754820873098887168

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