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Distance and protective barrier effects on the composite resin degree of conversion

CONTEXT: The food wrap films are used to cover the tip of curing light units in order to avoid contamination and prevent damage to the light guide. However, their effects on resin polymerization are not fully known. AIMS: We investigated the effects on restoration efficiency of a food wrap protectiv...

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Autores principales: Coutinho, Margareth, Trevizam, Natália Carvalho, Takayassu, Renata Nakase, Leme, Ariene Arcas, Soares, Giulliana Panfiglio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3757874/
https://www.ncbi.nlm.nih.gov/pubmed/24015001
http://dx.doi.org/10.4103/0976-237X.114845
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author Coutinho, Margareth
Trevizam, Natália Carvalho
Takayassu, Renata Nakase
Leme, Ariene Arcas
Soares, Giulliana Panfiglio
author_facet Coutinho, Margareth
Trevizam, Natália Carvalho
Takayassu, Renata Nakase
Leme, Ariene Arcas
Soares, Giulliana Panfiglio
author_sort Coutinho, Margareth
collection PubMed
description CONTEXT: The food wrap films are used to cover the tip of curing light units in order to avoid contamination and prevent damage to the light guide. However, their effects on resin polymerization are not fully known. AIMS: We investigated the effects on restoration efficiency of a food wrap protective barrier used on the tip of curing light units. MATERIALS AND METHODS: For each treatment, five replications were performed, a total of 60 bovine incisor. The degree of conversion (%DC) of restorations with the composite resin Opallis EA2 was evaluated using 3 curing light devices (Optilux 501, Optilight and Ultra LED) and 2 curing distances (0 and 5 mm). The composite resin was tested for restoration of cavities in bovine crowns. %DC values were measured by the Fourier transform infrared spectroscopy-attenuated total reflectance technique. STATISTICAL ANALYSIS USED: The data were analyzed using 3-way ANOVA and Tukey's test. RESULTS: Use of the protective film lowered %DC (F = 4.13; P = 0.05), and the effects of curing distance were associated to the curing light device (F = 3.61; P = 0.03). CONCLUSIONS: The distance from the light curing tip and use of a translucent protective barrier on the light-cure device can both impair composite resin %DC.
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spelling pubmed-37578742013-09-06 Distance and protective barrier effects on the composite resin degree of conversion Coutinho, Margareth Trevizam, Natália Carvalho Takayassu, Renata Nakase Leme, Ariene Arcas Soares, Giulliana Panfiglio Contemp Clin Dent Original Article CONTEXT: The food wrap films are used to cover the tip of curing light units in order to avoid contamination and prevent damage to the light guide. However, their effects on resin polymerization are not fully known. AIMS: We investigated the effects on restoration efficiency of a food wrap protective barrier used on the tip of curing light units. MATERIALS AND METHODS: For each treatment, five replications were performed, a total of 60 bovine incisor. The degree of conversion (%DC) of restorations with the composite resin Opallis EA2 was evaluated using 3 curing light devices (Optilux 501, Optilight and Ultra LED) and 2 curing distances (0 and 5 mm). The composite resin was tested for restoration of cavities in bovine crowns. %DC values were measured by the Fourier transform infrared spectroscopy-attenuated total reflectance technique. STATISTICAL ANALYSIS USED: The data were analyzed using 3-way ANOVA and Tukey's test. RESULTS: Use of the protective film lowered %DC (F = 4.13; P = 0.05), and the effects of curing distance were associated to the curing light device (F = 3.61; P = 0.03). CONCLUSIONS: The distance from the light curing tip and use of a translucent protective barrier on the light-cure device can both impair composite resin %DC. Medknow Publications & Media Pvt Ltd 2013 /pmc/articles/PMC3757874/ /pubmed/24015001 http://dx.doi.org/10.4103/0976-237X.114845 Text en Copyright: © Contemporary Clinical Dentistry http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Coutinho, Margareth
Trevizam, Natália Carvalho
Takayassu, Renata Nakase
Leme, Ariene Arcas
Soares, Giulliana Panfiglio
Distance and protective barrier effects on the composite resin degree of conversion
title Distance and protective barrier effects on the composite resin degree of conversion
title_full Distance and protective barrier effects on the composite resin degree of conversion
title_fullStr Distance and protective barrier effects on the composite resin degree of conversion
title_full_unstemmed Distance and protective barrier effects on the composite resin degree of conversion
title_short Distance and protective barrier effects on the composite resin degree of conversion
title_sort distance and protective barrier effects on the composite resin degree of conversion
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3757874/
https://www.ncbi.nlm.nih.gov/pubmed/24015001
http://dx.doi.org/10.4103/0976-237X.114845
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