Effects of Color Modifier on Degree of Monomer Conversion, Biaxial Flexural Strength, Surface Microhardness, and Water Sorption/Solubility of Resin Composites

Color modifiers can be mixed with resin composites to mimic the shade of severely discolored tooth. The aim of this study was to assess the effects of a color modifier on the physical and mechanical properties of a resin composite. The composite was mixed with a color modifier at 0 wt% (group 1), 1...

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Autores principales:	Pipop Saikaew, Patchara Phimolthares, Pheeratas Phitakthanaakul, Panthira Sirikul, Suwannee Mekrakseree, Piyaphong Panpisut
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	resin composite color modifier degree of monomer conversion biaxial flexural strength surface microhardness water sorption Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/7bcf60a7f9a3453ca451906fdf11dfb0
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spelling	oai:doaj.org-article:7bcf60a7f9a3453ca451906fdf11dfb02021-11-25T18:48:08ZEffects of Color Modifier on Degree of Monomer Conversion, Biaxial Flexural Strength, Surface Microhardness, and Water Sorption/Solubility of Resin Composites10.3390/polym132239022073-4360https://doaj.org/article/7bcf60a7f9a3453ca451906fdf11dfb02021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/3902https://doaj.org/toc/2073-4360Color modifiers can be mixed with resin composites to mimic the shade of severely discolored tooth. The aim of this study was to assess the effects of a color modifier on the physical and mechanical properties of a resin composite. The composite was mixed with a color modifier at 0 wt% (group 1), 1 wt% (group 2), 2.5 wt% (group 3), or 5 wt% (group 4). The degree of monomer conversion (DC) was examined after light curing for 20 or 40 s. Biaxial flexural strength (BFS)/modulus (BFM), surface microhardness (SH), and water sorption (W<sub>sp</sub>)/solubility (W<sub>sl</sub>) were also tested. The DC of group 1 was significantly higher than that of groups 3 and 4. The increase in curing time from 20 to 40 s increased the DC by ~10%. The BFS, BFM, W<sub>sp</sub>, and W<sub>sl</sub> of all the groups were comparable. A negative correlation was detected between the concentration of color modifier and the BFS and DC, while a positive correlation was observed with W<sub>sp</sub>. In conclusion, the color modifier reduced the DC of composites, but the conversion was improved by extending the curing time. The increase in color modifier concentration also correlated with a reduction in strength and the increase in the water sorption of the composites.Pipop SaikaewPatchara PhimoltharesPheeratas PhitakthanaakulPanthira SirikulSuwannee MekraksereePiyaphong PanpisutMDPI AGarticleresin compositecolor modifierdegree of monomer conversionbiaxial flexural strengthsurface microhardnesswater sorptionOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3902, p 3902 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	resin composite color modifier degree of monomer conversion biaxial flexural strength surface microhardness water sorption Organic chemistry QD241-441
spellingShingle	resin composite color modifier degree of monomer conversion biaxial flexural strength surface microhardness water sorption Organic chemistry QD241-441 Pipop Saikaew Patchara Phimolthares Pheeratas Phitakthanaakul Panthira Sirikul Suwannee Mekrakseree Piyaphong Panpisut Effects of Color Modifier on Degree of Monomer Conversion, Biaxial Flexural Strength, Surface Microhardness, and Water Sorption/Solubility of Resin Composites
description	Color modifiers can be mixed with resin composites to mimic the shade of severely discolored tooth. The aim of this study was to assess the effects of a color modifier on the physical and mechanical properties of a resin composite. The composite was mixed with a color modifier at 0 wt% (group 1), 1 wt% (group 2), 2.5 wt% (group 3), or 5 wt% (group 4). The degree of monomer conversion (DC) was examined after light curing for 20 or 40 s. Biaxial flexural strength (BFS)/modulus (BFM), surface microhardness (SH), and water sorption (W<sub>sp</sub>)/solubility (W<sub>sl</sub>) were also tested. The DC of group 1 was significantly higher than that of groups 3 and 4. The increase in curing time from 20 to 40 s increased the DC by ~10%. The BFS, BFM, W<sub>sp</sub>, and W<sub>sl</sub> of all the groups were comparable. A negative correlation was detected between the concentration of color modifier and the BFS and DC, while a positive correlation was observed with W<sub>sp</sub>. In conclusion, the color modifier reduced the DC of composites, but the conversion was improved by extending the curing time. The increase in color modifier concentration also correlated with a reduction in strength and the increase in the water sorption of the composites.
format	article
author	Pipop Saikaew Patchara Phimolthares Pheeratas Phitakthanaakul Panthira Sirikul Suwannee Mekrakseree Piyaphong Panpisut
author_facet	Pipop Saikaew Patchara Phimolthares Pheeratas Phitakthanaakul Panthira Sirikul Suwannee Mekrakseree Piyaphong Panpisut
author_sort	Pipop Saikaew
title	Effects of Color Modifier on Degree of Monomer Conversion, Biaxial Flexural Strength, Surface Microhardness, and Water Sorption/Solubility of Resin Composites
title_short	Effects of Color Modifier on Degree of Monomer Conversion, Biaxial Flexural Strength, Surface Microhardness, and Water Sorption/Solubility of Resin Composites
title_full	Effects of Color Modifier on Degree of Monomer Conversion, Biaxial Flexural Strength, Surface Microhardness, and Water Sorption/Solubility of Resin Composites
title_fullStr	Effects of Color Modifier on Degree of Monomer Conversion, Biaxial Flexural Strength, Surface Microhardness, and Water Sorption/Solubility of Resin Composites
title_full_unstemmed	Effects of Color Modifier on Degree of Monomer Conversion, Biaxial Flexural Strength, Surface Microhardness, and Water Sorption/Solubility of Resin Composites
title_sort	effects of color modifier on degree of monomer conversion, biaxial flexural strength, surface microhardness, and water sorption/solubility of resin composites
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7bcf60a7f9a3453ca451906fdf11dfb0
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Effects of Color Modifier on Degree of Monomer Conversion, Biaxial Flexural Strength, Surface Microhardness, and Water Sorption/Solubility of Resin Composites

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