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Microleakage of Dual-Cured Adhesive Systems in Class V Composite Resin Restorations
OBJECTIVE: Microleakage is a major factor affecting longevity of composite restorations. This study evaluated the effect of polymerization mode of bonding agent on microleakage of composite restorations. MATERIALS AND METHODS: Forty-eight Class V cavities were prepared on buccal and lingual surfaces...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Tehran University of Medical Sciences
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3466775/ https://www.ncbi.nlm.nih.gov/pubmed/23066474 |
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author | Kasraie, S. Azarsina, M. Khamverdi, Z. Shokraneh, F. |
author_facet | Kasraie, S. Azarsina, M. Khamverdi, Z. Shokraneh, F. |
author_sort | Kasraie, S. |
collection | PubMed |
description | OBJECTIVE: Microleakage is a major factor affecting longevity of composite restorations. This study evaluated the effect of polymerization mode of bonding agent on microleakage of composite restorations. MATERIALS AND METHODS: Forty-eight Class V cavities were prepared on buccal and lingual surfaces of 24 extracted human premolars. Occlusal and gingival margins were placed in the enamel and dentin, respectively. Teeth were divided into four groups as follows: Group I: Optibond Solo Plus (light-cured); Group II: Optibond Solo Plus (dual-cured); Group III: Prime & Bond NT (light-cured), Group IV: Prime & Bond NT (dual-cured). Teeth were restored using Z250 composite in three increments. After polishing the restorations, samples were thermocycled for 1000 cycles and stored in distilled water for 3 months. Then they were placed in 2% fuchsine solution for 48 hours. The samples were sectioned longitudinally and evaluated for microleakage under a stereomicroscope at ×40 magnification. Dye penetration was scored on a 0–3 ordinal scale. Data were analyzed using Kruskal-Wallis, Bonferroni and Wilcoxon signed ranks test. RESULTS: Microleakage was significantly lower in enamel margins compared to dentin margins (P<0.05); multiple comparisons by Bonferroni tests revealed that the only factor with significant effect on leakage of the restoration is location of the restoration margin. Mode of adhesive polymerization had no significant influence on microleakage (P>0.05). Prime & Bond NT had less microleakage compared to Optibond SoloPlus, but the difference was not significant (P>0.05). CONCLUSION: There was no difference in the amount of microleakage in Class V composite restorations using light-cured and dual-cured bonding systems. Dentinal margins of restorations exhibited more microleakage than enamel margins. |
format | Online Article Text |
id | pubmed-3466775 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Tehran University of Medical Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-34667752012-10-12 Microleakage of Dual-Cured Adhesive Systems in Class V Composite Resin Restorations Kasraie, S. Azarsina, M. Khamverdi, Z. Shokraneh, F. J Dent (Tehran) Original Article OBJECTIVE: Microleakage is a major factor affecting longevity of composite restorations. This study evaluated the effect of polymerization mode of bonding agent on microleakage of composite restorations. MATERIALS AND METHODS: Forty-eight Class V cavities were prepared on buccal and lingual surfaces of 24 extracted human premolars. Occlusal and gingival margins were placed in the enamel and dentin, respectively. Teeth were divided into four groups as follows: Group I: Optibond Solo Plus (light-cured); Group II: Optibond Solo Plus (dual-cured); Group III: Prime & Bond NT (light-cured), Group IV: Prime & Bond NT (dual-cured). Teeth were restored using Z250 composite in three increments. After polishing the restorations, samples were thermocycled for 1000 cycles and stored in distilled water for 3 months. Then they were placed in 2% fuchsine solution for 48 hours. The samples were sectioned longitudinally and evaluated for microleakage under a stereomicroscope at ×40 magnification. Dye penetration was scored on a 0–3 ordinal scale. Data were analyzed using Kruskal-Wallis, Bonferroni and Wilcoxon signed ranks test. RESULTS: Microleakage was significantly lower in enamel margins compared to dentin margins (P<0.05); multiple comparisons by Bonferroni tests revealed that the only factor with significant effect on leakage of the restoration is location of the restoration margin. Mode of adhesive polymerization had no significant influence on microleakage (P>0.05). Prime & Bond NT had less microleakage compared to Optibond SoloPlus, but the difference was not significant (P>0.05). CONCLUSION: There was no difference in the amount of microleakage in Class V composite restorations using light-cured and dual-cured bonding systems. Dentinal margins of restorations exhibited more microleakage than enamel margins. Tehran University of Medical Sciences 2012 2012-06-30 /pmc/articles/PMC3466775/ /pubmed/23066474 Text en Copyright © Dental Research Center, Tehran University of Medical Sciences http://creativecommons.org/licenses/by-nc/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution NonCommercial 3.0 License (CC BY-NC 3.0), which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly. |
spellingShingle | Original Article Kasraie, S. Azarsina, M. Khamverdi, Z. Shokraneh, F. Microleakage of Dual-Cured Adhesive Systems in Class V Composite Resin Restorations |
title | Microleakage of Dual-Cured Adhesive Systems in Class V Composite Resin Restorations |
title_full | Microleakage of Dual-Cured Adhesive Systems in Class V Composite Resin Restorations |
title_fullStr | Microleakage of Dual-Cured Adhesive Systems in Class V Composite Resin Restorations |
title_full_unstemmed | Microleakage of Dual-Cured Adhesive Systems in Class V Composite Resin Restorations |
title_short | Microleakage of Dual-Cured Adhesive Systems in Class V Composite Resin Restorations |
title_sort | microleakage of dual-cured adhesive systems in class v composite resin restorations |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3466775/ https://www.ncbi.nlm.nih.gov/pubmed/23066474 |
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