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Comparison of Microleakage and Thickness of Resin Cement in Ceramic Inlays with Various Temperatures

Background and aims. Microleakage is still one of the major problems of composite-based restorations.This study compared the microleakage and thickness of resin cement in ceramic inlays with various temperatures. Materials and methods. Class V cavities were prepared on the buccal and lingual aspects...

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Autores principales: Alaghemand, Homayoun, Abolghasemzadeh, Faezeh, Pakdel, Farzaneh, Judi Chelan, Reza
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Tabriz University of Medical Sciences 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4091699/
https://www.ncbi.nlm.nih.gov/pubmed/25024839
http://dx.doi.org/10.5681/joddd.2014.008
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author Alaghemand, Homayoun
Abolghasemzadeh, Faezeh
Pakdel, Farzaneh
Judi Chelan, Reza
author_facet Alaghemand, Homayoun
Abolghasemzadeh, Faezeh
Pakdel, Farzaneh
Judi Chelan, Reza
author_sort Alaghemand, Homayoun
collection PubMed
description Background and aims. Microleakage is still one of the major problems of composite-based restorations.This study compared the microleakage and thickness of resin cement in ceramic inlays with various temperatures. Materials and methods. Class V cavities were prepared on the buccal and lingual aspects of thirty human molars with occlusal margins in enamel and gingival margins in dentin (3 mm wide, 5 mm long and 2 mm deep). Laboratory-made inlays (LMI) were used for buccal cavities, and CAD/CAM inlays (CMI) were used for lingual cavities. All the cavities were divided into six groups (n=10): 1) LMI at -5°C; 2) LMI at 50°C; 3) LMI at room temperature (25°C); 4) CMI at -5°C; 5) CMI at 50°C; 6) CMI at room temperature (25°C). Inlays were bonded to cavities in a pulp pressure- and temperature-simulating device. After thermocycling and dye penetration, the teeth were divided into two mesiodistal halves. Amount of dye penetration and film thickness were measured under a stereomicroscope and analyzed with Kruskal-Wallis, Wilcoxon and Spearman's correlation tests ( = 0.05). Results. There were no statistically significant differences in leakage between different inlay temperatures (P > 0.05). The mean cement thickness in laboratory-made inlays (gingival margin, 83.7 ± 11 and occlusal margin, 84.7 ± 19) was greater than that in CAD/CAM inlays (gingival margin, 69 ± 16 and occlusal margin, 84.7 ± 16). No correlation was found be-tween cement thickness and microleakage either in enamel or dentin for any of the ceramic systems. Conclusion. Differences in inlay temperature had no effect on microleakage. CAD/CAM inlays had lower cement thickness than laboratory-made inlays, but this was not related to their microleakage.
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spelling pubmed-40916992014-07-14 Comparison of Microleakage and Thickness of Resin Cement in Ceramic Inlays with Various Temperatures Alaghemand, Homayoun Abolghasemzadeh, Faezeh Pakdel, Farzaneh Judi Chelan, Reza J Dent Res Dent Clin Dent Prospects Original Article Background and aims. Microleakage is still one of the major problems of composite-based restorations.This study compared the microleakage and thickness of resin cement in ceramic inlays with various temperatures. Materials and methods. Class V cavities were prepared on the buccal and lingual aspects of thirty human molars with occlusal margins in enamel and gingival margins in dentin (3 mm wide, 5 mm long and 2 mm deep). Laboratory-made inlays (LMI) were used for buccal cavities, and CAD/CAM inlays (CMI) were used for lingual cavities. All the cavities were divided into six groups (n=10): 1) LMI at -5°C; 2) LMI at 50°C; 3) LMI at room temperature (25°C); 4) CMI at -5°C; 5) CMI at 50°C; 6) CMI at room temperature (25°C). Inlays were bonded to cavities in a pulp pressure- and temperature-simulating device. After thermocycling and dye penetration, the teeth were divided into two mesiodistal halves. Amount of dye penetration and film thickness were measured under a stereomicroscope and analyzed with Kruskal-Wallis, Wilcoxon and Spearman's correlation tests ( = 0.05). Results. There were no statistically significant differences in leakage between different inlay temperatures (P > 0.05). The mean cement thickness in laboratory-made inlays (gingival margin, 83.7 ± 11 and occlusal margin, 84.7 ± 19) was greater than that in CAD/CAM inlays (gingival margin, 69 ± 16 and occlusal margin, 84.7 ± 16). No correlation was found be-tween cement thickness and microleakage either in enamel or dentin for any of the ceramic systems. Conclusion. Differences in inlay temperature had no effect on microleakage. CAD/CAM inlays had lower cement thickness than laboratory-made inlays, but this was not related to their microleakage. Tabriz University of Medical Sciences 2014 2014-03-05 /pmc/articles/PMC4091699/ /pubmed/25024839 http://dx.doi.org/10.5681/joddd.2014.008 Text en © 2014 The Authors; Tabriz University of Medical Sciences http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 License(http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Alaghemand, Homayoun
Abolghasemzadeh, Faezeh
Pakdel, Farzaneh
Judi Chelan, Reza
Comparison of Microleakage and Thickness of Resin Cement in Ceramic Inlays with Various Temperatures
title Comparison of Microleakage and Thickness of Resin Cement in Ceramic Inlays with Various Temperatures
title_full Comparison of Microleakage and Thickness of Resin Cement in Ceramic Inlays with Various Temperatures
title_fullStr Comparison of Microleakage and Thickness of Resin Cement in Ceramic Inlays with Various Temperatures
title_full_unstemmed Comparison of Microleakage and Thickness of Resin Cement in Ceramic Inlays with Various Temperatures
title_short Comparison of Microleakage and Thickness of Resin Cement in Ceramic Inlays with Various Temperatures
title_sort comparison of microleakage and thickness of resin cement in ceramic inlays with various temperatures
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4091699/
https://www.ncbi.nlm.nih.gov/pubmed/25024839
http://dx.doi.org/10.5681/joddd.2014.008
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