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Effect of Curing Modes on the Mechanical Properties of Commercial Dental Resin-Based Composites: Comparison between Different LEDs and Microwave Units

Resin-based composites (RBCs) have transformed restorative dentistry and its procedures. However, the characteristics of RBCs have been modified over the years to enhance the physical and chemical properties of the materials. This context raises the need for studies that evaluate whether the propert...

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Autores principales: Vermudt, Alef, Kuga, Milton Carlos, Besegato, João Felipe, de Oliveira, Eliane Cristina Gulin, Leandrin, Thaís Piragine, Só, Marcus Vinicius Reis, Moraes, João Carlos Silos, Pereira, Jefferson Ricardo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9571923/
https://www.ncbi.nlm.nih.gov/pubmed/36235967
http://dx.doi.org/10.3390/polym14194020
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author Vermudt, Alef
Kuga, Milton Carlos
Besegato, João Felipe
de Oliveira, Eliane Cristina Gulin
Leandrin, Thaís Piragine
Só, Marcus Vinicius Reis
Moraes, João Carlos Silos
Pereira, Jefferson Ricardo
author_facet Vermudt, Alef
Kuga, Milton Carlos
Besegato, João Felipe
de Oliveira, Eliane Cristina Gulin
Leandrin, Thaís Piragine
Só, Marcus Vinicius Reis
Moraes, João Carlos Silos
Pereira, Jefferson Ricardo
author_sort Vermudt, Alef
collection PubMed
description Resin-based composites (RBCs) have transformed restorative dentistry and its procedures. However, the characteristics of RBCs have been modified over the years to enhance the physical and chemical properties of the materials. This context raises the need for studies that evaluate whether the properties of the RBCs that are commercially available are clinically adequate with different curing modes. This study aimed to evaluate the mechanical behavior of commercial RBCs after undergoing different curing modes. Twenty-three RBCs of different classes were evaluated. For curing the specimens, a microwave (BMS45, Brastemp) (for 3 min at 450 W) and three LED units were used: an Emitter A Fit (Schuster (second generation)) (light-curing for 15 s with an irradiance of 1250 mW/cm(2)), VALO (Ultradent (third generation)) (light-curing for 15 s with an irradiance of 1100 mW/cm(2)), and Emitter Now Duo (Schuster (second generation)) (light-curing for 15 s with an irradiance of 1100 mW/cm(2)). A total of 670 RBC specimens of 8 mm in diameter and 1 mm in depth were obtained. Afterward, a biaxial flexure strength test was performed until the failure of the specimens, using a universal testing machine set at a speed of 0.5 mm/min. The same specimens were subjected to infrared spectroscopy for evaluating the degree of conversion. Tukey’s test was used for multiple comparisons at a significance level of 5%. The light-curing mode did not affect the flexure strength of the RBCs (p > 0.05), but the type and shade of RBCs did so (p < 0.05). In conclusion, the type of RBC directly interferes with the mechanical behavior of the material. However, the curing modes within the same RBC did not change the mechanical properties.
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spelling pubmed-95719232022-10-17 Effect of Curing Modes on the Mechanical Properties of Commercial Dental Resin-Based Composites: Comparison between Different LEDs and Microwave Units Vermudt, Alef Kuga, Milton Carlos Besegato, João Felipe de Oliveira, Eliane Cristina Gulin Leandrin, Thaís Piragine Só, Marcus Vinicius Reis Moraes, João Carlos Silos Pereira, Jefferson Ricardo Polymers (Basel) Article Resin-based composites (RBCs) have transformed restorative dentistry and its procedures. However, the characteristics of RBCs have been modified over the years to enhance the physical and chemical properties of the materials. This context raises the need for studies that evaluate whether the properties of the RBCs that are commercially available are clinically adequate with different curing modes. This study aimed to evaluate the mechanical behavior of commercial RBCs after undergoing different curing modes. Twenty-three RBCs of different classes were evaluated. For curing the specimens, a microwave (BMS45, Brastemp) (for 3 min at 450 W) and three LED units were used: an Emitter A Fit (Schuster (second generation)) (light-curing for 15 s with an irradiance of 1250 mW/cm(2)), VALO (Ultradent (third generation)) (light-curing for 15 s with an irradiance of 1100 mW/cm(2)), and Emitter Now Duo (Schuster (second generation)) (light-curing for 15 s with an irradiance of 1100 mW/cm(2)). A total of 670 RBC specimens of 8 mm in diameter and 1 mm in depth were obtained. Afterward, a biaxial flexure strength test was performed until the failure of the specimens, using a universal testing machine set at a speed of 0.5 mm/min. The same specimens were subjected to infrared spectroscopy for evaluating the degree of conversion. Tukey’s test was used for multiple comparisons at a significance level of 5%. The light-curing mode did not affect the flexure strength of the RBCs (p > 0.05), but the type and shade of RBCs did so (p < 0.05). In conclusion, the type of RBC directly interferes with the mechanical behavior of the material. However, the curing modes within the same RBC did not change the mechanical properties. MDPI 2022-09-26 /pmc/articles/PMC9571923/ /pubmed/36235967 http://dx.doi.org/10.3390/polym14194020 Text en © 2022 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
Vermudt, Alef
Kuga, Milton Carlos
Besegato, João Felipe
de Oliveira, Eliane Cristina Gulin
Leandrin, Thaís Piragine
Só, Marcus Vinicius Reis
Moraes, João Carlos Silos
Pereira, Jefferson Ricardo
Effect of Curing Modes on the Mechanical Properties of Commercial Dental Resin-Based Composites: Comparison between Different LEDs and Microwave Units
title Effect of Curing Modes on the Mechanical Properties of Commercial Dental Resin-Based Composites: Comparison between Different LEDs and Microwave Units
title_full Effect of Curing Modes on the Mechanical Properties of Commercial Dental Resin-Based Composites: Comparison between Different LEDs and Microwave Units
title_fullStr Effect of Curing Modes on the Mechanical Properties of Commercial Dental Resin-Based Composites: Comparison between Different LEDs and Microwave Units
title_full_unstemmed Effect of Curing Modes on the Mechanical Properties of Commercial Dental Resin-Based Composites: Comparison between Different LEDs and Microwave Units
title_short Effect of Curing Modes on the Mechanical Properties of Commercial Dental Resin-Based Composites: Comparison between Different LEDs and Microwave Units
title_sort effect of curing modes on the mechanical properties of commercial dental resin-based composites: comparison between different leds and microwave units
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9571923/
https://www.ncbi.nlm.nih.gov/pubmed/36235967
http://dx.doi.org/10.3390/polym14194020
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