Table of Contents
Conference Papers in Science
Volume 2014, Article ID 646143, 5 pages
http://dx.doi.org/10.1155/2014/646143
Conference Paper

The Effect of UDMA/TEGDMA Mixtures and Bioglass Incorporation on the Mechanical and Physical Properties of Resin and Resin-Based Composite Materials

1Biomaterials Unit, School of Dentistry, University of Birmingham, Birmingham B4 6NN, UK
2School of Engineering and Applied Sciences & Aston Research Centre for Healthy Ageing, Aston University, Birmingham B4 7ET, UK

Received 6 September 2013; Accepted 10 February 2014; Published 12 March 2014

Academic Editors: S. Deb, J. Gough, and C. Scotchford

This Conference Paper is based on a presentation given by Laura C. Nicolae at “UK Society for Biomaterials Annual Conference 2013” held from 24 June 2013 to 25 June 2013 in Birmingham, United Kingdom.

Copyright © 2014 Laura C. Nicolae 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

Incorporating Bioglass into dental composites may improve biocompatibility and aid tooth and bone tissue remineralisation. This study aimed to determine the impact of Bioglass and silica filler on the mechanical and physical properties of cured photopolymers. Hardness (Vickers microhardness test), flexural strength (FS), and flexural modulus (FM) (three-point bend test) of resins containing various urethane dimethacrylate (UDMA)/triethylene glycol dimethacrylate (TEGDMA) and bisphenol A-glycidyl methacrylate (bisGMA)/TEGDMA concentrations (20–80 mass%) were tested. Degree of conversion (DC), FS, and FM of resin composites containing nonsilanised irregular 45S5-Bioglass (50 μm; 5–40 mass%) and/or silanised silicate glass filler particulates (0.7 μm; 30–70 mass%) were tested. Data was analysed using one-way ANOVA. UDMA/TEGDMA resins exhibited increased hardness and FM compared with bisGMA/TEGDMA resins. Addition of Bioglass particles to 60/40 wt% UDMA/TEGDMA or bisGMA/TEGDMA resins may enable the development of new materials that exhibit higher or at least equivalent values of DC, FS, and FM compared with conventional resin composites.