Cargando…

Surface Geometry of Four Conventional Nanohybrid Resin-Based Composites and Four Regular Viscosity Bulk Fill Resin-Based Composites after Two-Step Polishing Procedure

OBJECTIVES: The aim of the study was to determine the quantitative and qualitative surface structure of contemporary RBCs in posterior teeth reconstructions: regular viscosity bulk fill and conventional composites, obtained after two-stage polishing procedure. MATERIALS AND METHODS: Four conventiona...

Descripción completa

Detalles Bibliográficos
Autores principales: Granat, Mateusz, Cieloszyk, Janusz, Kowalska, Urszula, Buczkowska-Radlińska, Jadwiga, Łagocka, Ryta
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7441458/
https://www.ncbi.nlm.nih.gov/pubmed/32851084
http://dx.doi.org/10.1155/2020/6203053
_version_ 1783573304481677312
author Granat, Mateusz
Cieloszyk, Janusz
Kowalska, Urszula
Buczkowska-Radlińska, Jadwiga
Łagocka, Ryta
author_facet Granat, Mateusz
Cieloszyk, Janusz
Kowalska, Urszula
Buczkowska-Radlińska, Jadwiga
Łagocka, Ryta
author_sort Granat, Mateusz
collection PubMed
description OBJECTIVES: The aim of the study was to determine the quantitative and qualitative surface structure of contemporary RBCs in posterior teeth reconstructions: regular viscosity bulk fill and conventional composites, obtained after two-stage polishing procedure. MATERIALS AND METHODS: Four conventional nanohybrid composites (Tetric EvoCeram, GrandioSO, Filtek Z550, and Ceram·X Mono) and four regular viscosity bulk fill composites (Tetric EvoCeram Bulk Fill, X-tra fil, Filtek Bulk Fill Posterior, and QuixFil) were tested. Samples of each RBC were prepared using PMMA cylindrical mold. After two-step polishing procedure, a surface geometry was evaluated under profilometry (Turbowave v. 7.36, Hommel-Etamic) and SEM (VEGA 3, Tescan Analytics). To evaluate differences between values, the following nonparametric tests were used: Friedman's ANOVA, Wilcoxon's matched-pair test, ANOVA Kruskal-Wallis, and Mann-Whitney U. RESULTS: All conventional RBCs showed Ra values in the range of 0.20-0.26 μm. Bulk fill showed higher values in range of 0.49-1.36 μm except for Filtek Bulk Fill Posterior, which achieved 0.23 μm Ra value. SEM images of conventional RBCs were described as smooth surfaces with slight damage except for TEC, which presented smooth surface with no damage. Bulk fill composites showed rough surface, except for TBF, which presented smooth surface with slight damage. CONCLUSIONS: Regular viscosity bulk fill composites do not constitute a homogeneous group regarding surface roughness after polishing. They obtain, for the most part, poorer smoothness values after polishing than conventional RBCs.
format Online
Article
Text
id pubmed-7441458
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Hindawi
record_format MEDLINE/PubMed
spelling pubmed-74414582020-08-25 Surface Geometry of Four Conventional Nanohybrid Resin-Based Composites and Four Regular Viscosity Bulk Fill Resin-Based Composites after Two-Step Polishing Procedure Granat, Mateusz Cieloszyk, Janusz Kowalska, Urszula Buczkowska-Radlińska, Jadwiga Łagocka, Ryta Biomed Res Int Research Article OBJECTIVES: The aim of the study was to determine the quantitative and qualitative surface structure of contemporary RBCs in posterior teeth reconstructions: regular viscosity bulk fill and conventional composites, obtained after two-stage polishing procedure. MATERIALS AND METHODS: Four conventional nanohybrid composites (Tetric EvoCeram, GrandioSO, Filtek Z550, and Ceram·X Mono) and four regular viscosity bulk fill composites (Tetric EvoCeram Bulk Fill, X-tra fil, Filtek Bulk Fill Posterior, and QuixFil) were tested. Samples of each RBC were prepared using PMMA cylindrical mold. After two-step polishing procedure, a surface geometry was evaluated under profilometry (Turbowave v. 7.36, Hommel-Etamic) and SEM (VEGA 3, Tescan Analytics). To evaluate differences between values, the following nonparametric tests were used: Friedman's ANOVA, Wilcoxon's matched-pair test, ANOVA Kruskal-Wallis, and Mann-Whitney U. RESULTS: All conventional RBCs showed Ra values in the range of 0.20-0.26 μm. Bulk fill showed higher values in range of 0.49-1.36 μm except for Filtek Bulk Fill Posterior, which achieved 0.23 μm Ra value. SEM images of conventional RBCs were described as smooth surfaces with slight damage except for TEC, which presented smooth surface with no damage. Bulk fill composites showed rough surface, except for TBF, which presented smooth surface with slight damage. CONCLUSIONS: Regular viscosity bulk fill composites do not constitute a homogeneous group regarding surface roughness after polishing. They obtain, for the most part, poorer smoothness values after polishing than conventional RBCs. Hindawi 2020-08-12 /pmc/articles/PMC7441458/ /pubmed/32851084 http://dx.doi.org/10.1155/2020/6203053 Text en Copyright © 2020 Mateusz Granat et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Granat, Mateusz
Cieloszyk, Janusz
Kowalska, Urszula
Buczkowska-Radlińska, Jadwiga
Łagocka, Ryta
Surface Geometry of Four Conventional Nanohybrid Resin-Based Composites and Four Regular Viscosity Bulk Fill Resin-Based Composites after Two-Step Polishing Procedure
title Surface Geometry of Four Conventional Nanohybrid Resin-Based Composites and Four Regular Viscosity Bulk Fill Resin-Based Composites after Two-Step Polishing Procedure
title_full Surface Geometry of Four Conventional Nanohybrid Resin-Based Composites and Four Regular Viscosity Bulk Fill Resin-Based Composites after Two-Step Polishing Procedure
title_fullStr Surface Geometry of Four Conventional Nanohybrid Resin-Based Composites and Four Regular Viscosity Bulk Fill Resin-Based Composites after Two-Step Polishing Procedure
title_full_unstemmed Surface Geometry of Four Conventional Nanohybrid Resin-Based Composites and Four Regular Viscosity Bulk Fill Resin-Based Composites after Two-Step Polishing Procedure
title_short Surface Geometry of Four Conventional Nanohybrid Resin-Based Composites and Four Regular Viscosity Bulk Fill Resin-Based Composites after Two-Step Polishing Procedure
title_sort surface geometry of four conventional nanohybrid resin-based composites and four regular viscosity bulk fill resin-based composites after two-step polishing procedure
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7441458/
https://www.ncbi.nlm.nih.gov/pubmed/32851084
http://dx.doi.org/10.1155/2020/6203053
work_keys_str_mv AT granatmateusz surfacegeometryoffourconventionalnanohybridresinbasedcompositesandfourregularviscositybulkfillresinbasedcompositesaftertwosteppolishingprocedure
AT cieloszykjanusz surfacegeometryoffourconventionalnanohybridresinbasedcompositesandfourregularviscositybulkfillresinbasedcompositesaftertwosteppolishingprocedure
AT kowalskaurszula surfacegeometryoffourconventionalnanohybridresinbasedcompositesandfourregularviscositybulkfillresinbasedcompositesaftertwosteppolishingprocedure
AT buczkowskaradlinskajadwiga surfacegeometryoffourconventionalnanohybridresinbasedcompositesandfourregularviscositybulkfillresinbasedcompositesaftertwosteppolishingprocedure
AT łagockaryta surfacegeometryoffourconventionalnanohybridresinbasedcompositesandfourregularviscositybulkfillresinbasedcompositesaftertwosteppolishingprocedure