Comparison of polymerization shrinkage of a new bulk‐fill flowable composite with other composites: An in vitro study

Abstract Objective Since composites still face a critical problem called polymerization shrinkage and bulk‐fill composites have reported acceptable results for this issue, this study aims to assess the polymerization shrinkage of a new bulk‐fill flowable composite (G‐aenial bulk injectable [GBI]) an...

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Main Authors: Somayeh Khoramian Tusi, Hajar Hamdollahpoor, Maryam Mohammadi Savadroodbari, Mahmood Sheikh Fathollahi
Format: Article
Language:English
Published: Wiley 2022-12-01
Series:Clinical and Experimental Dental Research
Subjects:
Online Access:https://doi.org/10.1002/cre2.656
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author Somayeh Khoramian Tusi
Hajar Hamdollahpoor
Maryam Mohammadi Savadroodbari
Mahmood Sheikh Fathollahi
author_facet Somayeh Khoramian Tusi
Hajar Hamdollahpoor
Maryam Mohammadi Savadroodbari
Mahmood Sheikh Fathollahi
author_sort Somayeh Khoramian Tusi
collection DOAJ
description Abstract Objective Since composites still face a critical problem called polymerization shrinkage and bulk‐fill composites have reported acceptable results for this issue, this study aims to assess the polymerization shrinkage of a new bulk‐fill flowable composite (G‐aenial bulk injectable [GBI]) and compare it to other bulk‐fill and conventional composites. Materials and Methods In this in vitro study, 25 composite discs were fabricated using three bulk‐fill and two conventional composites. They were bonded to a microscopic slide and were covered by a coverslip. This assembly was transferred to a linear variable differential transformer and composite samples were cured from underneath the slides. Dimensional changes formed in composite samples were recorded. Data were analyzed using analysis of variance followed by post hoc Tukey's and Dunnett's tests. Results The groups were significantly different regarding polymerization shrinkage. G‐aenial bulk injectable and G‐aenial universal flo showed significantly higher polymerization shrinkage than other composites at 30, 60, and 1800 s after light irradiation, while X‐tra fil and Filtek Z250 showed the lowest polymerization shrinkage at the aforementioned time points. Conclusion According to the results, the new composite had polymerization shrinkage similar to the conventional one. Bulk‐fill composites reported similar or lower shrinkage to conventional composites.
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spelling doaj.art-69503fdf25df421bae6dbfeaa2a75d342022-12-22T04:23:34ZengWileyClinical and Experimental Dental Research2057-43472022-12-01861605161310.1002/cre2.656Comparison of polymerization shrinkage of a new bulk‐fill flowable composite with other composites: An in vitro studySomayeh Khoramian Tusi0Hajar Hamdollahpoor1Maryam Mohammadi Savadroodbari2Mahmood Sheikh Fathollahi3Department of Pediatric Dentistry Alborz university of Medical Sciences Karaj IranStudent Research Committee Alborz University of Medical Sciences Karaj IranDepartment of Operative Dentistry Alborz University of Medical Sciences Karaj IranRajaie Cardiovascular Medical and Research Center Iran University of Medical Sciences Tehran IranAbstract Objective Since composites still face a critical problem called polymerization shrinkage and bulk‐fill composites have reported acceptable results for this issue, this study aims to assess the polymerization shrinkage of a new bulk‐fill flowable composite (G‐aenial bulk injectable [GBI]) and compare it to other bulk‐fill and conventional composites. Materials and Methods In this in vitro study, 25 composite discs were fabricated using three bulk‐fill and two conventional composites. They were bonded to a microscopic slide and were covered by a coverslip. This assembly was transferred to a linear variable differential transformer and composite samples were cured from underneath the slides. Dimensional changes formed in composite samples were recorded. Data were analyzed using analysis of variance followed by post hoc Tukey's and Dunnett's tests. Results The groups were significantly different regarding polymerization shrinkage. G‐aenial bulk injectable and G‐aenial universal flo showed significantly higher polymerization shrinkage than other composites at 30, 60, and 1800 s after light irradiation, while X‐tra fil and Filtek Z250 showed the lowest polymerization shrinkage at the aforementioned time points. Conclusion According to the results, the new composite had polymerization shrinkage similar to the conventional one. Bulk‐fill composites reported similar or lower shrinkage to conventional composites.https://doi.org/10.1002/cre2.656bulk‐fillcomposite resinsflowable hybrid compositepolymerizationshrinkage
spellingShingle Somayeh Khoramian Tusi
Hajar Hamdollahpoor
Maryam Mohammadi Savadroodbari
Mahmood Sheikh Fathollahi
Comparison of polymerization shrinkage of a new bulk‐fill flowable composite with other composites: An in vitro study
Clinical and Experimental Dental Research
bulk‐fill
composite resins
flowable hybrid composite
polymerization
shrinkage
title Comparison of polymerization shrinkage of a new bulk‐fill flowable composite with other composites: An in vitro study
title_full Comparison of polymerization shrinkage of a new bulk‐fill flowable composite with other composites: An in vitro study
title_fullStr Comparison of polymerization shrinkage of a new bulk‐fill flowable composite with other composites: An in vitro study
title_full_unstemmed Comparison of polymerization shrinkage of a new bulk‐fill flowable composite with other composites: An in vitro study
title_short Comparison of polymerization shrinkage of a new bulk‐fill flowable composite with other composites: An in vitro study
title_sort comparison of polymerization shrinkage of a new bulk fill flowable composite with other composites an in vitro study
topic bulk‐fill
composite resins
flowable hybrid composite
polymerization
shrinkage
url https://doi.org/10.1002/cre2.656
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AT hajarhamdollahpoor comparisonofpolymerizationshrinkageofanewbulkfillflowablecompositewithothercompositesaninvitrostudy
AT maryammohammadisavadroodbari comparisonofpolymerizationshrinkageofanewbulkfillflowablecompositewithothercompositesaninvitrostudy
AT mahmoodsheikhfathollahi comparisonofpolymerizationshrinkageofanewbulkfillflowablecompositewithothercompositesaninvitrostudy