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Conversion degrees of resin composites using different light sources
OBJECTIVE: The objective of this study was to compare the conversion degree of six different composite materials (Filtek Z 250, Filtek P60, Spectrum TPH, Pertac II, Clearfil AP-X, and Clearfil Photo Posterior) using three different light sources (blue light-emitting diode [LED], plasma arc curing [P...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Dental Investigations Society
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3571517/ https://www.ncbi.nlm.nih.gov/pubmed/23407765 |
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author | Ozturk, Bora Cobanoglu, Nevin Cetin, Ali Rıza Gunduz, Beniz |
author_facet | Ozturk, Bora Cobanoglu, Nevin Cetin, Ali Rıza Gunduz, Beniz |
author_sort | Ozturk, Bora |
collection | PubMed |
description | OBJECTIVE: The objective of this study was to compare the conversion degree of six different composite materials (Filtek Z 250, Filtek P60, Spectrum TPH, Pertac II, Clearfil AP-X, and Clearfil Photo Posterior) using three different light sources (blue light-emitting diode [LED], plasma arc curing [PAC], and conventional halogen lamp [QTH]). METHODS: Composites were placed in a 2 mm thick and 5 mm diameter Teflon molds and light cured from the top using three methods: LED for 40 s, PAC for 10 s, and QTH for 40 s. A Fourier Transform Infrared Spectroscopy (FTIR) was used to evaluate the degree of conversion (DC) (n=5). The results were analyzed with two-way analysis of variance and Tukey HSD test. RESULTS: DC was significantly influenced by two variables, light source and composite (P<.05). QTH revealed significantly higher DC values than LED (P<.05). However, there were no significant differences between DC values of QTH and PAC or between DC values of LED and PAC (P>.05). The highest DC was observed in the Z 250 composite specimens following photopolymerization with QTH (70%). The lowest DC was observed in Clearfil Photo Posterior composite specimens following photo-polymerization with LED (43%). CONCLUSIONS: The DC was found to be changing according to both light sources and composite materials used. Conventional light halogen (QTH) from light sources and Filtek Z 250 and Filtek P 60 among composite materials showed the most DC performance. |
format | Online Article Text |
id | pubmed-3571517 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Dental Investigations Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-35715172013-02-13 Conversion degrees of resin composites using different light sources Ozturk, Bora Cobanoglu, Nevin Cetin, Ali Rıza Gunduz, Beniz Eur J Dent Articles OBJECTIVE: The objective of this study was to compare the conversion degree of six different composite materials (Filtek Z 250, Filtek P60, Spectrum TPH, Pertac II, Clearfil AP-X, and Clearfil Photo Posterior) using three different light sources (blue light-emitting diode [LED], plasma arc curing [PAC], and conventional halogen lamp [QTH]). METHODS: Composites were placed in a 2 mm thick and 5 mm diameter Teflon molds and light cured from the top using three methods: LED for 40 s, PAC for 10 s, and QTH for 40 s. A Fourier Transform Infrared Spectroscopy (FTIR) was used to evaluate the degree of conversion (DC) (n=5). The results were analyzed with two-way analysis of variance and Tukey HSD test. RESULTS: DC was significantly influenced by two variables, light source and composite (P<.05). QTH revealed significantly higher DC values than LED (P<.05). However, there were no significant differences between DC values of QTH and PAC or between DC values of LED and PAC (P>.05). The highest DC was observed in the Z 250 composite specimens following photopolymerization with QTH (70%). The lowest DC was observed in Clearfil Photo Posterior composite specimens following photo-polymerization with LED (43%). CONCLUSIONS: The DC was found to be changing according to both light sources and composite materials used. Conventional light halogen (QTH) from light sources and Filtek Z 250 and Filtek P 60 among composite materials showed the most DC performance. Dental Investigations Society 2013-01 /pmc/articles/PMC3571517/ /pubmed/23407765 Text en Copyright 2013 European Journal of Dentistry. All rights reserved. |
spellingShingle | Articles Ozturk, Bora Cobanoglu, Nevin Cetin, Ali Rıza Gunduz, Beniz Conversion degrees of resin composites using different light sources |
title | Conversion degrees of resin composites using different light sources |
title_full | Conversion degrees of resin composites using different light sources |
title_fullStr | Conversion degrees of resin composites using different light sources |
title_full_unstemmed | Conversion degrees of resin composites using different light sources |
title_short | Conversion degrees of resin composites using different light sources |
title_sort | conversion degrees of resin composites using different light sources |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3571517/ https://www.ncbi.nlm.nih.gov/pubmed/23407765 |
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