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Advances in Condensed Matter Physics
Volume 2018, Article ID 8265305, 10 pages
https://doi.org/10.1155/2018/8265305
Research Article

Green LED as an Effective Light Source for Curing Acrylate-Based Dental Resins in Combination with Irgacure 784

1Department of Biomaterials and Prosthetic Dentistry, University of Debrecen, Debrecen, Hungary
2Department of Experimental Physics, University of Debrecen, Debrecen, Hungary
3Department of Solid State Physics, University of Debrecen, Debrecen, Hungary
4Department of Applied Chemistry, University of Debrecen, Debrecen, Hungary

Correspondence should be addressed to Csaba Hegedűs; uh.bedinu.latned@forp.abasc.sudegeh

Received 18 January 2018; Revised 5 March 2018; Accepted 15 March 2018; Published 23 April 2018

Academic Editor: Jia-De Lin

Copyright © 2018 Katalin Bukovinszky et al. 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.

Abstract

Low intensity green light emitting diodes (LED) were shown to be an effective light source to induce the photopolymerization of an acrylate-based photocurable dental restorative resin mixture of bisphenol A glycerolate dimethacrylate (BisGMA), triethylene glycol dimethacrylate (TEGDMA), and diurethane dimethacrylate (UDMA), in combination with fluorinated diaryl titanocene (Irgacure 784). Dental matrices were prepared by the LED light source at different intensities. The mechanical properties, such as Vickers microhardness, compressive strength, diametric tensile strength, flexural strength, and -modulus of the created samples, were investigated. The kinetics of the photopolymerization was followed by Raman spectroscopy and conversion values were determined. It was found that, despite its narrow-emission range centered at a wavelength of 531 nm, the green LED light source is suitable for the preparation of dental matrices with good mechanical properties and high conversion values.