Cargando…
Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites
As a core build-up material, dual-cured (DC) resin-based composites are becoming popular. The aim of this research was to investigate specific physical and handling properties of new experimental short-fiber-reinforced DC resin composites (SFRCs) in comparison to different commercial, conventional D...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8309262/ https://www.ncbi.nlm.nih.gov/pubmed/34301038 http://dx.doi.org/10.3390/polym13142281 |
_version_ | 1783728481737113600 |
---|---|
author | Säilynoja, Eija Garoushi, Sufyan Vallittu, Pekka K. Lassila, Lippo |
author_facet | Säilynoja, Eija Garoushi, Sufyan Vallittu, Pekka K. Lassila, Lippo |
author_sort | Säilynoja, Eija |
collection | PubMed |
description | As a core build-up material, dual-cured (DC) resin-based composites are becoming popular. The aim of this research was to investigate specific physical and handling properties of new experimental short-fiber-reinforced DC resin composites (SFRCs) in comparison to different commercial, conventional DC materials (e.g., Gradia Core, Rebilda DC, LuxaCore Z, and Visalys(®) CemCore). Degree of monomer conversion (DC%) was determined by FTIR-spectrometry using either self- or light-curing mode. The flexural strength, modulus, and fracture toughness were calculated through a three-point bending setup. Viscosity was analyzed at room (22 °C) and mouth (35 °C) temperatures with a rotating disk rheometer. The surface microstructure of each resin composite was examined with scanning electron microscopy (SEM). Data were statistically analyzed with analysis of variance ANOVA (p = 0.05). The curing mode showed significant (p < 0.05) effect on the DC% and flexural properties of tested DC resin composites and differences were material dependent. SFRC exhibited the highest fracture toughness (2.3 MPa m(1/2)) values and LuxaCore showed the lowest values (1 MPa m(1/2)) among the tested materials (p < 0.05). After light curing, Gradia Core and SFRCs showed the highest flexural properties (p < 0.05), while the other resin composites had comparable values. The novel DC short-fiber-reinforced core build-up resin composite demonstrated super fracture toughness compared to the tested DC conventional resin composites. |
format | Online Article Text |
id | pubmed-8309262 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-83092622021-07-25 Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites Säilynoja, Eija Garoushi, Sufyan Vallittu, Pekka K. Lassila, Lippo Polymers (Basel) Article As a core build-up material, dual-cured (DC) resin-based composites are becoming popular. The aim of this research was to investigate specific physical and handling properties of new experimental short-fiber-reinforced DC resin composites (SFRCs) in comparison to different commercial, conventional DC materials (e.g., Gradia Core, Rebilda DC, LuxaCore Z, and Visalys(®) CemCore). Degree of monomer conversion (DC%) was determined by FTIR-spectrometry using either self- or light-curing mode. The flexural strength, modulus, and fracture toughness were calculated through a three-point bending setup. Viscosity was analyzed at room (22 °C) and mouth (35 °C) temperatures with a rotating disk rheometer. The surface microstructure of each resin composite was examined with scanning electron microscopy (SEM). Data were statistically analyzed with analysis of variance ANOVA (p = 0.05). The curing mode showed significant (p < 0.05) effect on the DC% and flexural properties of tested DC resin composites and differences were material dependent. SFRC exhibited the highest fracture toughness (2.3 MPa m(1/2)) values and LuxaCore showed the lowest values (1 MPa m(1/2)) among the tested materials (p < 0.05). After light curing, Gradia Core and SFRCs showed the highest flexural properties (p < 0.05), while the other resin composites had comparable values. The novel DC short-fiber-reinforced core build-up resin composite demonstrated super fracture toughness compared to the tested DC conventional resin composites. MDPI 2021-07-12 /pmc/articles/PMC8309262/ /pubmed/34301038 http://dx.doi.org/10.3390/polym13142281 Text en © 2021 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 Säilynoja, Eija Garoushi, Sufyan Vallittu, Pekka K. Lassila, Lippo Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites |
title | Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites |
title_full | Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites |
title_fullStr | Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites |
title_full_unstemmed | Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites |
title_short | Characterization of Experimental Short-Fiber-Reinforced Dual-Cure Core Build-Up Resin Composites |
title_sort | characterization of experimental short-fiber-reinforced dual-cure core build-up resin composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8309262/ https://www.ncbi.nlm.nih.gov/pubmed/34301038 http://dx.doi.org/10.3390/polym13142281 |
work_keys_str_mv | AT sailynojaeija characterizationofexperimentalshortfiberreinforceddualcurecorebuildupresincomposites AT garoushisufyan characterizationofexperimentalshortfiberreinforceddualcurecorebuildupresincomposites AT vallittupekkak characterizationofexperimentalshortfiberreinforceddualcurecorebuildupresincomposites AT lassilalippo characterizationofexperimentalshortfiberreinforceddualcurecorebuildupresincomposites |