Artículo

Cuevas-Suárez, C.E.; Meereis, C.T.W.; D’Accorso, N.; Macchi, R.; Ancona-Meza, A.L.; Zamarripa-Calderón, E."Effect of radiant exposure and UV accelerated aging on physicochemical and mechanical properties of composite resins" (2019) Journal of Applied Oral Science. 27
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Abstract:

Currently, there is no consensus in terms of defining the minimum radiant exposure values necessary for achieving adequate properties of composite resin. In addition, the long-term influence that radiant exposure has on the properties of composite resins is still questionable. Objective: The objective of this study was to evaluate the effect of radiant exposure and UV accelerated aging on the physico-chemical and mechanical properties of micro-hybrid and nanofilled composite resins. Material and Methods: A nanofilled (Filtek Supreme; 3M ESPE) and a micro-hybrid composite resin (Filtek Z250; 3M ESPE) were investigated under different radiant exposures (3.75, 9, and 24 J/cm2) and UV accelerated aging protocols (0, 500, 1000, and 1500 aging hours). The degree of conversion (DC), flexural strength (FS), modulus (M), water sorption (WS), and solubility (WL) were evaluated. The results obtained were analyzed using two-way ANOVA and Tukey’s test. Comparisons were performed using a significance level of a=0.05. Results: The DC, FS, and M were found to be significantly influenced by both radiant exposure and accelerated aging time. The DC and EM increased with radiant exposure in the no-aging group (0-hour aging) for both micro-hybrid and nanofilled composites, whereas no correlation was found after accelerated aging protocols. WS and WL of micro-hybrid and nanofilled composite resins were scarcely affected by radiant exposure (p>0.05), whereas they were significantly reduced by accelerated aging (p<0.001). Conclusions: Although increasing radiant exposure affected the degree of conversion and mechanical properties of micro-hybrid and nanofilled composites, no influence on the hydrolytic degradation of the material was observed. In contrast, UV accelerated aging affected both the physico-chemical and mechanical properties of the composites. © 2019, Bauru School of Dentistry, University of Sao Paulo. All rights reserved.

Registro:

Documento: Artículo
Título:Effect of radiant exposure and UV accelerated aging on physicochemical and mechanical properties of composite resins
Autor:Cuevas-Suárez, C.E.; Meereis, C.T.W.; D’Accorso, N.; Macchi, R.; Ancona-Meza, A.L.; Zamarripa-Calderón, E.
Filiación:Universidad Autónoma del Estado de Hidalgo, Instituto de Ciencias de la Salud, Área Académica de Odontología, Pachuca de Soto, Mexico
Universidade Federal dos Vales do Jequitinhonha e Mucuri, Programa de Pós-Graduação em Odontologia, Diamantina, Minas Gerais, Brazil
Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Buenos Aires, Argentina
Universidad de Buenos Aires, Facultad de Odontología, Departamento de Materiales Dentales, Buenos Aires, Argentina
Palabras clave:Aging; Composite resins; Polymerization; Filtek Supreme; resin; resin cement; water; analysis of variance; chemistry; dental curing light; evaluation study; infrared spectroscopy; materials testing; phase transition; photochemistry; polymerization; radiation dose; radiation response; reference value; scanning electron microscopy; solubility; surface property; time factor; ultraviolet radiation; Analysis of Variance; Composite Resins; Curing Lights, Dental; Flexural Strength; Materials Testing; Microscopy, Electron, Scanning; Phase Transition; Photochemical Processes; Polymerization; Radiation Dosage; Reference Values; Solubility; Spectroscopy, Fourier Transform Infrared; Surface Properties; Time Factors; Ultraviolet Rays; Water
Año:2019
Volumen:27
DOI: http://dx.doi.org/10.1590/1678-7757-2018-0075
Handle:http://hdl.handle.net/20.500.12110/paper_16787757_v27_n_p_CuevasSuarez
Título revista:Journal of Applied Oral Science
Título revista abreviado:J. Appl. Oral Sci.
ISSN:16787757
CAS:water, 7732-18-5; Composite Resins; Filtek Supreme; Filtek Z250; Water
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16787757_v27_n_p_CuevasSuarez

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Citas:

---------- APA ----------
Cuevas-Suárez, C.E., Meereis, C.T.W., D’Accorso, N., Macchi, R., Ancona-Meza, A.L. & Zamarripa-Calderón, E. (2019) . Effect of radiant exposure and UV accelerated aging on physicochemical and mechanical properties of composite resins. Journal of Applied Oral Science, 27.
http://dx.doi.org/10.1590/1678-7757-2018-0075
---------- CHICAGO ----------
Cuevas-Suárez, C.E., Meereis, C.T.W., D’Accorso, N., Macchi, R., Ancona-Meza, A.L., Zamarripa-Calderón, E. "Effect of radiant exposure and UV accelerated aging on physicochemical and mechanical properties of composite resins" . Journal of Applied Oral Science 27 (2019).
http://dx.doi.org/10.1590/1678-7757-2018-0075
---------- MLA ----------
Cuevas-Suárez, C.E., Meereis, C.T.W., D’Accorso, N., Macchi, R., Ancona-Meza, A.L., Zamarripa-Calderón, E. "Effect of radiant exposure and UV accelerated aging on physicochemical and mechanical properties of composite resins" . Journal of Applied Oral Science, vol. 27, 2019.
http://dx.doi.org/10.1590/1678-7757-2018-0075
---------- VANCOUVER ----------
Cuevas-Suárez, C.E., Meereis, C.T.W., D’Accorso, N., Macchi, R., Ancona-Meza, A.L., Zamarripa-Calderón, E. Effect of radiant exposure and UV accelerated aging on physicochemical and mechanical properties of composite resins. J. Appl. Oral Sci. 2019;27.
http://dx.doi.org/10.1590/1678-7757-2018-0075