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Reaction of Rat Subcutaneous Connective Tissue to Resin Composites Polymerized with Different Light Curing Units and Different Lightening Methods

The aim of the study was to determine and compare the reaction of rat subcutaneous connective tissue to resin composites polymerized with different lights curing and lightening methods. In this in vivo study, 20 mature Wister Albino rats were used. The composite discs, 4 mm in diameter and 2 mm thic...

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Autores principales: Feiz, Atiyeh, Arbabzadeh Zavareh, Farahnaz, Mohammad Razavi, Seyed, Badrian, Hamid, Dolatyar, Sepideh, Vajihi, Mansoureh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3384911/
https://www.ncbi.nlm.nih.gov/pubmed/22761617
http://dx.doi.org/10.1155/2012/156352
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author Feiz, Atiyeh
Arbabzadeh Zavareh, Farahnaz
Mohammad Razavi, Seyed
Badrian, Hamid
Dolatyar, Sepideh
Vajihi, Mansoureh
author_facet Feiz, Atiyeh
Arbabzadeh Zavareh, Farahnaz
Mohammad Razavi, Seyed
Badrian, Hamid
Dolatyar, Sepideh
Vajihi, Mansoureh
author_sort Feiz, Atiyeh
collection PubMed
description The aim of the study was to determine and compare the reaction of rat subcutaneous connective tissue to resin composites polymerized with different lights curing and lightening methods. In this in vivo study, 20 mature Wister Albino rats were used. The composite discs, 4 mm in diameter and 2 mm thick, were cured by QTH or LED light curing units with 4 different lightning methods (full power QTH, full power LED, pulse LED, and ramp LED). Five resin composite discs were implanted in each rat, so that 4 of 5 discs for implantation of cured composite discs differently and central one as control without implantation. After sacrificing at 7, 14, 30, and 60 days the inflammatory grade, fibrosis, and necrosis were determined. Freedman and Cochran tests were used to analyze the data using SPSS software ver. 15. The results of the study showed significant differences in inflammation grade and fibrosis among control group and 4 experimental groups at day 14 (P < 0.05). In necrosis, there was no significant difference among 4 groups in different times (P > 0.05). In conclusion, neither the type of light curing units (LED or QTH) nor the lightening methods can affect the grade of inflammatory reaction.
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spelling pubmed-33849112012-07-03 Reaction of Rat Subcutaneous Connective Tissue to Resin Composites Polymerized with Different Light Curing Units and Different Lightening Methods Feiz, Atiyeh Arbabzadeh Zavareh, Farahnaz Mohammad Razavi, Seyed Badrian, Hamid Dolatyar, Sepideh Vajihi, Mansoureh Int J Dent Research Article The aim of the study was to determine and compare the reaction of rat subcutaneous connective tissue to resin composites polymerized with different lights curing and lightening methods. In this in vivo study, 20 mature Wister Albino rats were used. The composite discs, 4 mm in diameter and 2 mm thick, were cured by QTH or LED light curing units with 4 different lightning methods (full power QTH, full power LED, pulse LED, and ramp LED). Five resin composite discs were implanted in each rat, so that 4 of 5 discs for implantation of cured composite discs differently and central one as control without implantation. After sacrificing at 7, 14, 30, and 60 days the inflammatory grade, fibrosis, and necrosis were determined. Freedman and Cochran tests were used to analyze the data using SPSS software ver. 15. The results of the study showed significant differences in inflammation grade and fibrosis among control group and 4 experimental groups at day 14 (P < 0.05). In necrosis, there was no significant difference among 4 groups in different times (P > 0.05). In conclusion, neither the type of light curing units (LED or QTH) nor the lightening methods can affect the grade of inflammatory reaction. Hindawi Publishing Corporation 2012 2012-06-14 /pmc/articles/PMC3384911/ /pubmed/22761617 http://dx.doi.org/10.1155/2012/156352 Text en Copyright © 2012 Atiyeh Feiz et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Feiz, Atiyeh
Arbabzadeh Zavareh, Farahnaz
Mohammad Razavi, Seyed
Badrian, Hamid
Dolatyar, Sepideh
Vajihi, Mansoureh
Reaction of Rat Subcutaneous Connective Tissue to Resin Composites Polymerized with Different Light Curing Units and Different Lightening Methods
title Reaction of Rat Subcutaneous Connective Tissue to Resin Composites Polymerized with Different Light Curing Units and Different Lightening Methods
title_full Reaction of Rat Subcutaneous Connective Tissue to Resin Composites Polymerized with Different Light Curing Units and Different Lightening Methods
title_fullStr Reaction of Rat Subcutaneous Connective Tissue to Resin Composites Polymerized with Different Light Curing Units and Different Lightening Methods
title_full_unstemmed Reaction of Rat Subcutaneous Connective Tissue to Resin Composites Polymerized with Different Light Curing Units and Different Lightening Methods
title_short Reaction of Rat Subcutaneous Connective Tissue to Resin Composites Polymerized with Different Light Curing Units and Different Lightening Methods
title_sort reaction of rat subcutaneous connective tissue to resin composites polymerized with different light curing units and different lightening methods
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3384911/
https://www.ncbi.nlm.nih.gov/pubmed/22761617
http://dx.doi.org/10.1155/2012/156352
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