Cargando…

Flexural Strength of Dental Fiber Composite Post Manufactured with a Novel Approach

Thermoplastic resin fiber composites have an easy fabrication process, good mechanical properties, and compatible stiffness to tooth dentin. However, they have not yet attracted much interest in the field of dentistry. The current study was carried out to test a new proposed approach to manufacture...

Descripción completa

Detalles Bibliográficos
Autores principales: Abdelkader, Esraa M., Cortes Cortes, Jose Manuel, Botella, Candela Reyes, Nassar, Khaled, Rus, Guillermo, Fathy, Salma M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9099821/
https://www.ncbi.nlm.nih.gov/pubmed/35591704
http://dx.doi.org/10.3390/ma15093370
_version_ 1784706701134397440
author Abdelkader, Esraa M.
Cortes Cortes, Jose Manuel
Botella, Candela Reyes
Nassar, Khaled
Rus, Guillermo
Fathy, Salma M.
author_facet Abdelkader, Esraa M.
Cortes Cortes, Jose Manuel
Botella, Candela Reyes
Nassar, Khaled
Rus, Guillermo
Fathy, Salma M.
author_sort Abdelkader, Esraa M.
collection PubMed
description Thermoplastic resin fiber composites have an easy fabrication process, good mechanical properties, and compatible stiffness to tooth dentin. However, they have not yet attracted much interest in the field of dentistry. The current study was carried out to test a new proposed approach to manufacture a fiber reinforced composite endodontic post and evaluate its flexural strength through a two-point inclined loading test. The proposed fiber post manufacture approach depends upon a braiding technique of the glass fibers’ (GF) reinforcing component with thermoplastic polypropylene (PP) resin fibers that will later represent the resin matrix after thermal melting. Posts were made of different core (70%) and sheath (30%) construction (PP/GF ratios) using three different GF types and seizing pre-treatment to both fiber types. Two-point inclined loading test at 45 °C applied force angle was used to test the posts’ flexural strength. Fiber posts (1.6 mm in diameter) with pure GF (de-sized starch E-GF and pre-silanized S-GF) core, and sheath construction with higher PP/GF ratios, showed the significantly highest two-point bending strength (56.67 ± 4.89 and 53.96 ± 1.81 MPa, respectively), among experimental posts groups (except for the commercial control posts). However, posts with PP core type showed the lowest values (21.59 ± 1.86 and 16.54 ± 1.94 MPa for de-sized and E-glass sheath fibers, respectively). Based on these findings, the proposed approach was reliable in producing fiber-reinforced composite post with the desired dimensions and fiber distribution. Post construction with a pure GF core and higher PP/GF ratio showed considerably higher flexural strength and GF volume fraction comparable to commercial available post types.
format Online
Article
Text
id pubmed-9099821
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-90998212022-05-14 Flexural Strength of Dental Fiber Composite Post Manufactured with a Novel Approach Abdelkader, Esraa M. Cortes Cortes, Jose Manuel Botella, Candela Reyes Nassar, Khaled Rus, Guillermo Fathy, Salma M. Materials (Basel) Article Thermoplastic resin fiber composites have an easy fabrication process, good mechanical properties, and compatible stiffness to tooth dentin. However, they have not yet attracted much interest in the field of dentistry. The current study was carried out to test a new proposed approach to manufacture a fiber reinforced composite endodontic post and evaluate its flexural strength through a two-point inclined loading test. The proposed fiber post manufacture approach depends upon a braiding technique of the glass fibers’ (GF) reinforcing component with thermoplastic polypropylene (PP) resin fibers that will later represent the resin matrix after thermal melting. Posts were made of different core (70%) and sheath (30%) construction (PP/GF ratios) using three different GF types and seizing pre-treatment to both fiber types. Two-point inclined loading test at 45 °C applied force angle was used to test the posts’ flexural strength. Fiber posts (1.6 mm in diameter) with pure GF (de-sized starch E-GF and pre-silanized S-GF) core, and sheath construction with higher PP/GF ratios, showed the significantly highest two-point bending strength (56.67 ± 4.89 and 53.96 ± 1.81 MPa, respectively), among experimental posts groups (except for the commercial control posts). However, posts with PP core type showed the lowest values (21.59 ± 1.86 and 16.54 ± 1.94 MPa for de-sized and E-glass sheath fibers, respectively). Based on these findings, the proposed approach was reliable in producing fiber-reinforced composite post with the desired dimensions and fiber distribution. Post construction with a pure GF core and higher PP/GF ratio showed considerably higher flexural strength and GF volume fraction comparable to commercial available post types. MDPI 2022-05-08 /pmc/articles/PMC9099821/ /pubmed/35591704 http://dx.doi.org/10.3390/ma15093370 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Abdelkader, Esraa M.
Cortes Cortes, Jose Manuel
Botella, Candela Reyes
Nassar, Khaled
Rus, Guillermo
Fathy, Salma M.
Flexural Strength of Dental Fiber Composite Post Manufactured with a Novel Approach
title Flexural Strength of Dental Fiber Composite Post Manufactured with a Novel Approach
title_full Flexural Strength of Dental Fiber Composite Post Manufactured with a Novel Approach
title_fullStr Flexural Strength of Dental Fiber Composite Post Manufactured with a Novel Approach
title_full_unstemmed Flexural Strength of Dental Fiber Composite Post Manufactured with a Novel Approach
title_short Flexural Strength of Dental Fiber Composite Post Manufactured with a Novel Approach
title_sort flexural strength of dental fiber composite post manufactured with a novel approach
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9099821/
https://www.ncbi.nlm.nih.gov/pubmed/35591704
http://dx.doi.org/10.3390/ma15093370
work_keys_str_mv AT abdelkaderesraam flexuralstrengthofdentalfibercompositepostmanufacturedwithanovelapproach
AT cortescortesjosemanuel flexuralstrengthofdentalfibercompositepostmanufacturedwithanovelapproach
AT botellacandelareyes flexuralstrengthofdentalfibercompositepostmanufacturedwithanovelapproach
AT nassarkhaled flexuralstrengthofdentalfibercompositepostmanufacturedwithanovelapproach
AT rusguillermo flexuralstrengthofdentalfibercompositepostmanufacturedwithanovelapproach
AT fathysalmam flexuralstrengthofdentalfibercompositepostmanufacturedwithanovelapproach