Visible Light Curable Restorative Composites for Dental Applications Based on Epoxy Monomer

A cationic photo-curable cycloaliphatic epoxy resin has been investigated as reactive monomer in blue light crosslinking process. We have demonstrated that camphorquinone is able to abstract labile hydrogen from the epoxy monomer, giving rise to the formation of carbon-centered radicals that are oxi...

Descripción completa

Detalles Bibliográficos
Autores principales: Vitale, Alessandra, Sangermano, Marco, Bongiovanni, Roberta, Burtscher, Peter, Moszner, Norbert
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5453123/
https://www.ncbi.nlm.nih.gov/pubmed/28788474
http://dx.doi.org/10.3390/ma7010554
_version_ 1783240582950289408
author Vitale, Alessandra
Sangermano, Marco
Bongiovanni, Roberta
Burtscher, Peter
Moszner, Norbert
author_facet Vitale, Alessandra
Sangermano, Marco
Bongiovanni, Roberta
Burtscher, Peter
Moszner, Norbert
author_sort Vitale, Alessandra
collection PubMed
description A cationic photo-curable cycloaliphatic epoxy resin has been investigated as reactive monomer in blue light crosslinking process. We have demonstrated that camphorquinone is able to abstract labile hydrogen from the epoxy monomer, giving rise to the formation of carbon-centered radicals that are oxidized by the onium salt; a complete epoxy group conversion was reached after 50 s of irradiation. The presence of water up to 1 wt% was tolerated without any important detrimental effect on the kinetics of light-curing. The presence of the inorganic filler up to 65 wt% did not significantly influence the curing process.
format Online
Article
Text
id pubmed-5453123
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-54531232017-07-28 Visible Light Curable Restorative Composites for Dental Applications Based on Epoxy Monomer Vitale, Alessandra Sangermano, Marco Bongiovanni, Roberta Burtscher, Peter Moszner, Norbert Materials (Basel) Article A cationic photo-curable cycloaliphatic epoxy resin has been investigated as reactive monomer in blue light crosslinking process. We have demonstrated that camphorquinone is able to abstract labile hydrogen from the epoxy monomer, giving rise to the formation of carbon-centered radicals that are oxidized by the onium salt; a complete epoxy group conversion was reached after 50 s of irradiation. The presence of water up to 1 wt% was tolerated without any important detrimental effect on the kinetics of light-curing. The presence of the inorganic filler up to 65 wt% did not significantly influence the curing process. MDPI 2014-01-20 /pmc/articles/PMC5453123/ /pubmed/28788474 http://dx.doi.org/10.3390/ma7010554 Text en © 2014 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Vitale, Alessandra
Sangermano, Marco
Bongiovanni, Roberta
Burtscher, Peter
Moszner, Norbert
Visible Light Curable Restorative Composites for Dental Applications Based on Epoxy Monomer
title Visible Light Curable Restorative Composites for Dental Applications Based on Epoxy Monomer
title_full Visible Light Curable Restorative Composites for Dental Applications Based on Epoxy Monomer
title_fullStr Visible Light Curable Restorative Composites for Dental Applications Based on Epoxy Monomer
title_full_unstemmed Visible Light Curable Restorative Composites for Dental Applications Based on Epoxy Monomer
title_short Visible Light Curable Restorative Composites for Dental Applications Based on Epoxy Monomer
title_sort visible light curable restorative composites for dental applications based on epoxy monomer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5453123/
https://www.ncbi.nlm.nih.gov/pubmed/28788474
http://dx.doi.org/10.3390/ma7010554
work_keys_str_mv AT vitalealessandra visiblelightcurablerestorativecompositesfordentalapplicationsbasedonepoxymonomer
AT sangermanomarco visiblelightcurablerestorativecompositesfordentalapplicationsbasedonepoxymonomer
AT bongiovanniroberta visiblelightcurablerestorativecompositesfordentalapplicationsbasedonepoxymonomer
AT burtscherpeter visiblelightcurablerestorativecompositesfordentalapplicationsbasedonepoxymonomer
AT mosznernorbert visiblelightcurablerestorativecompositesfordentalapplicationsbasedonepoxymonomer

Ejemplares similares