Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites

The aim of this in vitro study was to investigate the degree of C=C double bond conversion of high-viscosity dimethacrylate- or ormocer-based bulk-fill composites as a function of measurement depth. Four bulk-fill composites (Tetric EvoCeram Bulk Fill, x-tra fil, SonicFill, and Bulk Ormocer) and the...

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Autores principales:	Ramona S. Oltramare, Reto Odermatt, Phoebe Burrer, Thomas Attin, Tobias T. Tauböck
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	bulk-fill resin composite degree of conversion ormocer-based bulk-fill composite polymerization Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/1302c5712a2545f2b1a6fc91f6d8fb9b
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spelling	oai:doaj.org-article:1302c5712a2545f2b1a6fc91f6d8fb9b2021-11-25T18:13:17ZDepth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites10.3390/ma142267531996-1944https://doaj.org/article/1302c5712a2545f2b1a6fc91f6d8fb9b2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6753https://doaj.org/toc/1996-1944The aim of this in vitro study was to investigate the degree of C=C double bond conversion of high-viscosity dimethacrylate- or ormocer-based bulk-fill composites as a function of measurement depth. Four bulk-fill composites (Tetric EvoCeram Bulk Fill, x-tra fil, SonicFill, and Bulk Ormocer) and the conventional nanohybrid composite Tetric EvoCeram were applied in standardized Class II cavities (<i>n</i> = 6 per group) and photoactivated for 20 s at 1350 mW/cm<sup>2</sup>. The degree of conversion of the composites was assessed using Fourier-transform infrared spectroscopy at seven measurement depths (0.15, 1, 2, 3, 4, 5, 6 mm). Data were analyzed using repeated measures ANOVA and one-way ANOVA with Bonferroni post-hoc tests (α = 0.05). The investigated bulk-fill composites showed at least 80% of their maximum degree of conversion (80% DC<sub>max</sub>) up to a measuring depth of at least 4 mm. Tetric EvoCeram Bulk Fill and Bulk Ormocer achieved more than 80% DC<sub>max</sub> up to a measuring depth of 5 mm, x-tra fil up to 6 mm. The conventional nanohybrid composite Tetric EvoCeram achieved more than 80% DC<sub>max</sub> up to 3 mm. In contrast to the conventional composite, the investigated ormocer- and dimethacrylate-based bulk-fill composites can be photo-polymerized in thick layers of up to at least 4 mm with regard to their degree of C=C double bond conversion.Ramona S. OltramareReto OdermattPhoebe BurrerThomas AttinTobias T. TauböckMDPI AGarticlebulk-fill resin compositedegree of conversionormocer-based bulk-fill compositepolymerizationTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6753, p 6753 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bulk-fill resin composite degree of conversion ormocer-based bulk-fill composite polymerization Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	bulk-fill resin composite degree of conversion ormocer-based bulk-fill composite polymerization Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Ramona S. Oltramare Reto Odermatt Phoebe Burrer Thomas Attin Tobias T. Tauböck Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites
description	The aim of this in vitro study was to investigate the degree of C=C double bond conversion of high-viscosity dimethacrylate- or ormocer-based bulk-fill composites as a function of measurement depth. Four bulk-fill composites (Tetric EvoCeram Bulk Fill, x-tra fil, SonicFill, and Bulk Ormocer) and the conventional nanohybrid composite Tetric EvoCeram were applied in standardized Class II cavities (<i>n</i> = 6 per group) and photoactivated for 20 s at 1350 mW/cm<sup>2</sup>. The degree of conversion of the composites was assessed using Fourier-transform infrared spectroscopy at seven measurement depths (0.15, 1, 2, 3, 4, 5, 6 mm). Data were analyzed using repeated measures ANOVA and one-way ANOVA with Bonferroni post-hoc tests (α = 0.05). The investigated bulk-fill composites showed at least 80% of their maximum degree of conversion (80% DC<sub>max</sub>) up to a measuring depth of at least 4 mm. Tetric EvoCeram Bulk Fill and Bulk Ormocer achieved more than 80% DC<sub>max</sub> up to a measuring depth of 5 mm, x-tra fil up to 6 mm. The conventional nanohybrid composite Tetric EvoCeram achieved more than 80% DC<sub>max</sub> up to 3 mm. In contrast to the conventional composite, the investigated ormocer- and dimethacrylate-based bulk-fill composites can be photo-polymerized in thick layers of up to at least 4 mm with regard to their degree of C=C double bond conversion.
format	article
author	Ramona S. Oltramare Reto Odermatt Phoebe Burrer Thomas Attin Tobias T. Tauböck
author_facet	Ramona S. Oltramare Reto Odermatt Phoebe Burrer Thomas Attin Tobias T. Tauböck
author_sort	Ramona S. Oltramare
title	Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites
title_short	Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites
title_full	Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites
title_fullStr	Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites
title_full_unstemmed	Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites
title_sort	depth-related curing potential of ormocer- and dimethacrylate-based bulk-fill composites
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1302c5712a2545f2b1a6fc91f6d8fb9b
work_keys_str_mv	AT ramonasoltramare depthrelatedcuringpotentialoformoceranddimethacrylatebasedbulkfillcomposites AT retoodermatt depthrelatedcuringpotentialoformoceranddimethacrylatebasedbulkfillcomposites AT phoebeburrer depthrelatedcuringpotentialoformoceranddimethacrylatebasedbulkfillcomposites AT thomasattin depthrelatedcuringpotentialoformoceranddimethacrylatebasedbulkfillcomposites AT tobiasttaubock depthrelatedcuringpotentialoformoceranddimethacrylatebasedbulkfillcomposites
_version_	1718411422140989440

Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites

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