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Influence of composite insertion technique on gap formation

AIM: To compare newer bulk-fill composites with an incrementally filled composite for adaptability and subsequent gap formation at the pulpal floor. MATERIALS AND METHODS: Class I cavities were prepared in 60 intact molars, with a shallow depression in the center of the pulpal floor. The samples wer...

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Autores principales: Kapoor, Neha, Bahuguna, Nikhil, Anand, Surbhi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4760021/
https://www.ncbi.nlm.nih.gov/pubmed/26957799
http://dx.doi.org/10.4103/0972-0707.173205
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author Kapoor, Neha
Bahuguna, Nikhil
Anand, Surbhi
author_facet Kapoor, Neha
Bahuguna, Nikhil
Anand, Surbhi
author_sort Kapoor, Neha
collection PubMed
description AIM: To compare newer bulk-fill composites with an incrementally filled composite for adaptability and subsequent gap formation at the pulpal floor. MATERIALS AND METHODS: Class I cavities were prepared in 60 intact molars, with a shallow depression in the center of the pulpal floor. The samples were divided into four groups (n = 15), according to the material used; smart dentine replacement (SDR), SonicFill, Ever X Flow and Z350 XT, restored to a depth of 4 mm. Following thermocycling, samples were sectioned buccolingually and examined under a stereomicroscope. Seven samples from each group were coated with nail varnish except for approximately 1 mm around the tooth restoration junction. These samples were examined under stereomicroscope after staining with 2% buffered methylene blue dye. The remaining samples were examined under a scanning electron microscope for gap formation. The data were statistically analyzed using one-way ANOVA and post-hoc Bonferroni test. RESULTS: SDR showed the significantly best adaptability as compared to both SonicFill and Ever X Flow (comparable). However, significantly least adaptive capacity was seen in the incrementally filled group (Z350 XT). CONCLUSION: Bulk-fill composites performed better than incremental composites, demonstrating better adaptability and less gap formation at the pulpal floor.
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spelling pubmed-47600212016-03-08 Influence of composite insertion technique on gap formation Kapoor, Neha Bahuguna, Nikhil Anand, Surbhi J Conserv Dent Original Article AIM: To compare newer bulk-fill composites with an incrementally filled composite for adaptability and subsequent gap formation at the pulpal floor. MATERIALS AND METHODS: Class I cavities were prepared in 60 intact molars, with a shallow depression in the center of the pulpal floor. The samples were divided into four groups (n = 15), according to the material used; smart dentine replacement (SDR), SonicFill, Ever X Flow and Z350 XT, restored to a depth of 4 mm. Following thermocycling, samples were sectioned buccolingually and examined under a stereomicroscope. Seven samples from each group were coated with nail varnish except for approximately 1 mm around the tooth restoration junction. These samples were examined under stereomicroscope after staining with 2% buffered methylene blue dye. The remaining samples were examined under a scanning electron microscope for gap formation. The data were statistically analyzed using one-way ANOVA and post-hoc Bonferroni test. RESULTS: SDR showed the significantly best adaptability as compared to both SonicFill and Ever X Flow (comparable). However, significantly least adaptive capacity was seen in the incrementally filled group (Z350 XT). CONCLUSION: Bulk-fill composites performed better than incremental composites, demonstrating better adaptability and less gap formation at the pulpal floor. Medknow Publications & Media Pvt Ltd 2016 /pmc/articles/PMC4760021/ /pubmed/26957799 http://dx.doi.org/10.4103/0972-0707.173205 Text en Copyright: © Journal of Conservative 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-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Kapoor, Neha
Bahuguna, Nikhil
Anand, Surbhi
Influence of composite insertion technique on gap formation
title Influence of composite insertion technique on gap formation
title_full Influence of composite insertion technique on gap formation
title_fullStr Influence of composite insertion technique on gap formation
title_full_unstemmed Influence of composite insertion technique on gap formation
title_short Influence of composite insertion technique on gap formation
title_sort influence of composite insertion technique on gap formation
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4760021/
https://www.ncbi.nlm.nih.gov/pubmed/26957799
http://dx.doi.org/10.4103/0972-0707.173205
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