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Concept of a Novel Glass Ionomer Restorative Material with Improved Mechanical Properties

The objective of this study was to transfer the concept of ductile particle reinforcement to restorative dentistry and to introduce an innovative glass ionomer material that is based on the dispersion of PEG-PU micelles. It was hypothesized that reinforcing a conventional glass ionomer in this way i...

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Autores principales: Messer-Hannemann, Philipp, Böttcher, Henrik, Henning, Sven, Schwendicke, Falk, Effenberger, Susanne
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10672254/
https://www.ncbi.nlm.nih.gov/pubmed/37998103
http://dx.doi.org/10.3390/jfb14110534
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author Messer-Hannemann, Philipp
Böttcher, Henrik
Henning, Sven
Schwendicke, Falk
Effenberger, Susanne
author_facet Messer-Hannemann, Philipp
Böttcher, Henrik
Henning, Sven
Schwendicke, Falk
Effenberger, Susanne
author_sort Messer-Hannemann, Philipp
collection PubMed
description The objective of this study was to transfer the concept of ductile particle reinforcement to restorative dentistry and to introduce an innovative glass ionomer material that is based on the dispersion of PEG-PU micelles. It was hypothesized that reinforcing a conventional glass ionomer in this way increases the flexural strength and fracture toughness of the material. Flexural strength and fracture toughness tests were performed with the novel reinforced and a control glass ionomer material (DMG, Hamburg, Germany) to investigate the influence of the dispersed micelles on the mechanical performance. Transmission electron microscopy was used to identify the dispersed micelles. Fracture toughness and flexural strength were measured in a 3-point-bending setup using a universal testing machine. Before performing both tests, the specimens were stored in water at 37 °C for 23 h. The fracture toughness (MPa∙m(0.5)) of the novel glass ionomer material (median: 0.92, IQR: 0.89–0.94) was significantly higher than that of the control material (0.77, 0.75–0.86, p = 0.0078). Significant differences were also found in the flexural strength (MPa) between the reinforced (49.7, 45.2–57.8) and control material (41.8, 40.6–43.5, p = 0.0011). Reinforcing a conventional glass ionomer with PEG-PU micelles improved the mechanical properties and may expand clinical applicability of this material class in restorative dentistry.
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spelling pubmed-106722542023-10-24 Concept of a Novel Glass Ionomer Restorative Material with Improved Mechanical Properties Messer-Hannemann, Philipp Böttcher, Henrik Henning, Sven Schwendicke, Falk Effenberger, Susanne J Funct Biomater Article The objective of this study was to transfer the concept of ductile particle reinforcement to restorative dentistry and to introduce an innovative glass ionomer material that is based on the dispersion of PEG-PU micelles. It was hypothesized that reinforcing a conventional glass ionomer in this way increases the flexural strength and fracture toughness of the material. Flexural strength and fracture toughness tests were performed with the novel reinforced and a control glass ionomer material (DMG, Hamburg, Germany) to investigate the influence of the dispersed micelles on the mechanical performance. Transmission electron microscopy was used to identify the dispersed micelles. Fracture toughness and flexural strength were measured in a 3-point-bending setup using a universal testing machine. Before performing both tests, the specimens were stored in water at 37 °C for 23 h. The fracture toughness (MPa∙m(0.5)) of the novel glass ionomer material (median: 0.92, IQR: 0.89–0.94) was significantly higher than that of the control material (0.77, 0.75–0.86, p = 0.0078). Significant differences were also found in the flexural strength (MPa) between the reinforced (49.7, 45.2–57.8) and control material (41.8, 40.6–43.5, p = 0.0011). Reinforcing a conventional glass ionomer with PEG-PU micelles improved the mechanical properties and may expand clinical applicability of this material class in restorative dentistry. MDPI 2023-10-24 /pmc/articles/PMC10672254/ /pubmed/37998103 http://dx.doi.org/10.3390/jfb14110534 Text en © 2023 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
Messer-Hannemann, Philipp
Böttcher, Henrik
Henning, Sven
Schwendicke, Falk
Effenberger, Susanne
Concept of a Novel Glass Ionomer Restorative Material with Improved Mechanical Properties
title Concept of a Novel Glass Ionomer Restorative Material with Improved Mechanical Properties
title_full Concept of a Novel Glass Ionomer Restorative Material with Improved Mechanical Properties
title_fullStr Concept of a Novel Glass Ionomer Restorative Material with Improved Mechanical Properties
title_full_unstemmed Concept of a Novel Glass Ionomer Restorative Material with Improved Mechanical Properties
title_short Concept of a Novel Glass Ionomer Restorative Material with Improved Mechanical Properties
title_sort concept of a novel glass ionomer restorative material with improved mechanical properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10672254/
https://www.ncbi.nlm.nih.gov/pubmed/37998103
http://dx.doi.org/10.3390/jfb14110534
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