Identification and quantification of monomers released from dental composites using HPLC

The aim of this study was to detect and quantify the main residual monomers released from composites, using high performance liquid chromatography (HPLC). Discs were made with dental composites (Herculite XRV, Tetric Ceram and Filtek Z250) and immersed in deionized water at 37ºC for 28 days, with wa...

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Main Authors: Lucí Regina Panka Archegas, Rodrigo Nunes Rached, Sérgio Aparecido Ignacio, Eliane Carvalho de Vasconcelos, Débora Toledo Ramos, Evelise Machado de Souza
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar) 2009-08-01
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400009
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spelling doaj-473c33cbef6543c7868f278239859d312020-11-24T22:13:55ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242009-08-0152485586210.1590/S1516-89132009000400009Identification and quantification of monomers released from dental composites using HPLCLucí Regina Panka ArchegasRodrigo Nunes RachedSérgio Aparecido IgnacioEliane Carvalho de VasconcelosDébora Toledo RamosEvelise Machado de SouzaThe aim of this study was to detect and quantify the main residual monomers released from composites, using high performance liquid chromatography (HPLC). Discs were made with dental composites (Herculite XRV, Tetric Ceram and Filtek Z250) and immersed in deionized water at 37ºC for 28 days, with water changes in 1, 7, 14 and 21 days. The mean concentration of residual monomers were subject to the Kruskal-Wallis test (p<0.05). Tetric Ceram exhibited significantly higher concentrations of leached monomers. Bis-GMA was the monomer released in lower concentrations for all the materials. There was no statistical difference between the amounts of TEGDMA and UDMA. Most of the monomers demonstrated maximal concentration at the 7-day period. The HPLC analysis identified Bis-GMA, TEGDMA and UDMA in detectable quantities for all the tested composites.<br>A liberação de monômeros residuais pode afetar o comportamento clínico e a biocompatibilidade dos materiais resinosos. O objetivo deste estudo foi detectar e quantificar os principais monômeros residuais liberados de resinas compostas, usando cromatografia líquida de alta performance (HPLC). Discos foram construídos de resinas compostas de uso odontológico (Herculite XRV, Tetric Ceram and Filtek Z250) e imersos em água deionizada a 37ºC durante 28 dias, com mudanças de água em 24 horas, 7, 14 e 21 dias. As concentrações médias dos monômeros residuais foram submetidas ao teste de Kruskal-Wallis (p<0,05). Tetric Ceram apresentou as maiores concentrações de monômeros lixiviados. Bis-GMA foi o monômero liberado em menores concentrações para todos os materiais. Não houve diferença estatística significante entre TEGDMA e UDMA. A maioria dos monômeros demonstrou máxima concentração no período de 7 dias. A análise por meio de HPLC identificou Bis-GMA, TEGDMA e UDMA em quantidades detectáveis para todas as resinas compostas testadas.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400009Dental compositesmonomersHPLCTEGDMABis-GMAUDMA
collection DOAJ
language English
format Article
sources DOAJ
author Lucí Regina Panka Archegas
Rodrigo Nunes Rached
Sérgio Aparecido Ignacio
Eliane Carvalho de Vasconcelos
Débora Toledo Ramos
Evelise Machado de Souza
spellingShingle Lucí Regina Panka Archegas
Rodrigo Nunes Rached
Sérgio Aparecido Ignacio
Eliane Carvalho de Vasconcelos
Débora Toledo Ramos
Evelise Machado de Souza
Identification and quantification of monomers released from dental composites using HPLC
Brazilian Archives of Biology and Technology
Dental composites
monomers
HPLC
TEGDMA
Bis-GMA
UDMA
author_facet Lucí Regina Panka Archegas
Rodrigo Nunes Rached
Sérgio Aparecido Ignacio
Eliane Carvalho de Vasconcelos
Débora Toledo Ramos
Evelise Machado de Souza
author_sort Lucí Regina Panka Archegas
title Identification and quantification of monomers released from dental composites using HPLC
title_short Identification and quantification of monomers released from dental composites using HPLC
title_full Identification and quantification of monomers released from dental composites using HPLC
title_fullStr Identification and quantification of monomers released from dental composites using HPLC
title_full_unstemmed Identification and quantification of monomers released from dental composites using HPLC
title_sort identification and quantification of monomers released from dental composites using hplc
publisher Instituto de Tecnologia do Paraná (Tecpar)
series Brazilian Archives of Biology and Technology
issn 1516-8913
1678-4324
publishDate 2009-08-01
description The aim of this study was to detect and quantify the main residual monomers released from composites, using high performance liquid chromatography (HPLC). Discs were made with dental composites (Herculite XRV, Tetric Ceram and Filtek Z250) and immersed in deionized water at 37ºC for 28 days, with water changes in 1, 7, 14 and 21 days. The mean concentration of residual monomers were subject to the Kruskal-Wallis test (p<0.05). Tetric Ceram exhibited significantly higher concentrations of leached monomers. Bis-GMA was the monomer released in lower concentrations for all the materials. There was no statistical difference between the amounts of TEGDMA and UDMA. Most of the monomers demonstrated maximal concentration at the 7-day period. The HPLC analysis identified Bis-GMA, TEGDMA and UDMA in detectable quantities for all the tested composites.<br>A liberação de monômeros residuais pode afetar o comportamento clínico e a biocompatibilidade dos materiais resinosos. O objetivo deste estudo foi detectar e quantificar os principais monômeros residuais liberados de resinas compostas, usando cromatografia líquida de alta performance (HPLC). Discos foram construídos de resinas compostas de uso odontológico (Herculite XRV, Tetric Ceram and Filtek Z250) e imersos em água deionizada a 37ºC durante 28 dias, com mudanças de água em 24 horas, 7, 14 e 21 dias. As concentrações médias dos monômeros residuais foram submetidas ao teste de Kruskal-Wallis (p<0,05). Tetric Ceram apresentou as maiores concentrações de monômeros lixiviados. Bis-GMA foi o monômero liberado em menores concentrações para todos os materiais. Não houve diferença estatística significante entre TEGDMA e UDMA. A maioria dos monômeros demonstrou máxima concentração no período de 7 dias. A análise por meio de HPLC identificou Bis-GMA, TEGDMA e UDMA em quantidades detectáveis para todas as resinas compostas testadas.
topic Dental composites
monomers
HPLC
TEGDMA
Bis-GMA
UDMA
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400009
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