Correlation Between Homogeneity of Different Composite Resins and Their Adhesion to Glass Fiber Posts: In Vitro Assessment

<b>Background and Objectives:</b> This in vitro trial aimed to investigate if there is a correlation between the homogeneities of different composite materials and their adhesion to glass fiber posts (GFPs). <b>Materials and Methods:</b> Twenty intact human upper jaw central...

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Main Authors: Živilė Oleinikaitė, Gediminas Skirbutis, Greta Rutkauskaitė
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Dentistry Journal
Subjects:
Online Access:https://www.mdpi.com/2304-6767/13/7/290
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author Živilė Oleinikaitė
Gediminas Skirbutis
Greta Rutkauskaitė
author_facet Živilė Oleinikaitė
Gediminas Skirbutis
Greta Rutkauskaitė
author_sort Živilė Oleinikaitė
collection DOAJ
description <b>Background and Objectives:</b> This in vitro trial aimed to investigate if there is a correlation between the homogeneities of different composite materials and their adhesion to glass fiber posts (GFPs). <b>Materials and Methods:</b> Twenty intact human upper jaw central incisors extracted due to periodontal diseases were selected for this trial. Endodontic treatment was performed according to ISO recommendations. A total of 4 mm of guttapercha was left in the apical region. Canals were prepared for post insertion. Teeth were randomly allocated into the two following groups depending on the core restorative material (<i>n</i> = 10): I—cores build up with light cured composite; II—cores build up with dual cured composite resin. GFPs were inserted and cores were rebuilt with different composite resins. Longitudinal cuts were made across the axis of the teeth and examined under a scanning electron microscope (SEM). Statistical analysis was accomplished using Mann–Whitney U and Spearman tests (<i>p</i> < 0.05). <b>Results:</b> In the group where the number and size of pores at the interface of GFPs were analyzed, pores were found only in the specimens restored with the light-cured “bulk-filled” composite. In the group where the number and size of pores in the core material were analyzed, pores were found in specimens restored with both the light-cured “bulk-filled” composite and dual-cured resin composite. However, the dual-cured resin composite yielded better results in terms of core integration. <b>Conclusions:</b> There is no statistically significant correlation between the homogeneities of different composite materials and their adhesion to GFP.
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spelling doaj-art-dfee1097d70e4846bf4936a5de9b1ba92025-08-20T03:36:11ZengMDPI AGDentistry Journal2304-67672025-06-0113729010.3390/dj13070290Correlation Between Homogeneity of Different Composite Resins and Their Adhesion to Glass Fiber Posts: In Vitro AssessmentŽivilė Oleinikaitė0Gediminas Skirbutis1Greta Rutkauskaitė2Faculty of Odontology, Medical Academy, Lithuanian University of Health Sciences, Eiveniu 2, LT-50161 Kaunas, LithuaniaDepartment of Prosthodontics, Faculty of Odontology, Lithuanian University of Health Sciences, Sukileliu Ave. 51, LT-50106 Kaunas, LithuaniaDepartment of Prosthodontics, Faculty of Odontology, Lithuanian University of Health Sciences, Sukileliu Ave. 51, LT-50106 Kaunas, Lithuania<b>Background and Objectives:</b> This in vitro trial aimed to investigate if there is a correlation between the homogeneities of different composite materials and their adhesion to glass fiber posts (GFPs). <b>Materials and Methods:</b> Twenty intact human upper jaw central incisors extracted due to periodontal diseases were selected for this trial. Endodontic treatment was performed according to ISO recommendations. A total of 4 mm of guttapercha was left in the apical region. Canals were prepared for post insertion. Teeth were randomly allocated into the two following groups depending on the core restorative material (<i>n</i> = 10): I—cores build up with light cured composite; II—cores build up with dual cured composite resin. GFPs were inserted and cores were rebuilt with different composite resins. Longitudinal cuts were made across the axis of the teeth and examined under a scanning electron microscope (SEM). Statistical analysis was accomplished using Mann–Whitney U and Spearman tests (<i>p</i> < 0.05). <b>Results:</b> In the group where the number and size of pores at the interface of GFPs were analyzed, pores were found only in the specimens restored with the light-cured “bulk-filled” composite. In the group where the number and size of pores in the core material were analyzed, pores were found in specimens restored with both the light-cured “bulk-filled” composite and dual-cured resin composite. However, the dual-cured resin composite yielded better results in terms of core integration. <b>Conclusions:</b> There is no statistically significant correlation between the homogeneities of different composite materials and their adhesion to GFP.https://www.mdpi.com/2304-6767/13/7/290composite resinglass fiber postadhesionhomogeneity
spellingShingle Živilė Oleinikaitė
Gediminas Skirbutis
Greta Rutkauskaitė
Correlation Between Homogeneity of Different Composite Resins and Their Adhesion to Glass Fiber Posts: In Vitro Assessment
Dentistry Journal
composite resin
glass fiber post
adhesion
homogeneity
title Correlation Between Homogeneity of Different Composite Resins and Their Adhesion to Glass Fiber Posts: In Vitro Assessment
title_full Correlation Between Homogeneity of Different Composite Resins and Their Adhesion to Glass Fiber Posts: In Vitro Assessment
title_fullStr Correlation Between Homogeneity of Different Composite Resins and Their Adhesion to Glass Fiber Posts: In Vitro Assessment
title_full_unstemmed Correlation Between Homogeneity of Different Composite Resins and Their Adhesion to Glass Fiber Posts: In Vitro Assessment
title_short Correlation Between Homogeneity of Different Composite Resins and Their Adhesion to Glass Fiber Posts: In Vitro Assessment
title_sort correlation between homogeneity of different composite resins and their adhesion to glass fiber posts in vitro assessment
topic composite resin
glass fiber post
adhesion
homogeneity
url https://www.mdpi.com/2304-6767/13/7/290
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