Are polywave light-emitting diodes more effective than monowave ones in the photoactivation of resin-based materials containing alternative photoinitiators? A systematic review.

Autor: Lima RBW; Faculdade Nova Esperança, João Pessoa, PB, Brazil., Melo AMDS; Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil., Dias JDN; Centro Universitário de Patos, Patos, PB, Brazil., Barbosa LMM; Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil., Santos JVDN; Faculdade Nova Esperança, João Pessoa, PB, Brazil., Souza GM; University of Louisville, Louisville, KY, USA., Andrade AKM; Universidade Federal da Paraíba (UFPB), João Pessoa, PB, Brazil., Assunção IV; Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil., Borges BCD; Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil. Electronic address: boniek.castillo@gmail.com.
Jazyk: angličtina
Zdroj: Journal of the mechanical behavior of biomedical materials [J Mech Behav Biomed Mater] 2023 Jul; Vol. 143, pp. 105905. Date of Electronic Publication: 2023 May 13.
DOI: 10.1016/j.jmbbm.2023.105905
Abstrakt: Objective: This systematic review aimed to analyze if using polywave light-emitting diodes (LED) to photoactivate resin-based materials (resin composites, adhesive systems, and resin cements) containing alternative photoinitiators provide better physicochemical properties than monowave ones.
Material and Methods: Inclusion criteria were in vitro studies that evaluated the degree of conversion, microhardness and flexural strength in resin-based materials containing alternative photoinitiators and light-activated with mono and polywave LEDs. Exclusion criteria were studies that evaluated the physicochemical properties of composites through any material interposed between the LED and the resin composite and studies that exclusively compared different modes and/or light activation times. Selection of studies, data extraction, and risk-of-bias analysis was performed. Data from selected studies were qualitatively analyzed. A systematic search was performed in June 2021 using PubMed/Medline, Embase, Scopus, and ISI Web of Science databases and grey literature without language restriction.
Results: A total of 18 studies were included in the qualitative analysis. Nine studies used diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide (TPO) as an alternative photoinitiator for resin composite. Polywave LED improved the degree of conversion of resin composite compared to monowave in 9 of the included studies. Polywave LED improved the microhardness of resin composite compared to monowave in 7 of the included studies. Polywave LED improved the degree of conversion for 11 studies and microhardness of resin composite compared to monowave for 7 included studies. No differences in the flexural strength medium between poly and monowave LEDs were observed. The evidence was graded as low quality due to the high risk of bias for 11 studies.
Conclusion: The existing studies, with their limitations, revealed that the polywave light-emitting diode maximizes activation, resulting in a higher degree of double-bond conversion and microhardness of resin composites containing alternative photoinitiators. However, the flexural strength of these materials is not influenced by the type of light activation device.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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