We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Biobased isosorbide methacrylate monomer as an alternative to bisphenol A glycerolate dimethacrylate for dental restorative applications.
- Authors
Berlanga Duarte, María Lydia; Reyna Medina, Luis Alberto; Reyes, Patricia Torres; González Pérez, Sergio Emmanuel; Herrera González, Ana María
- Abstract
ABSTRACT In this study, a new biobased isosorbide urethane methacrylic monomer [isosorbide-derived urethane dimethacrylate (Is-UDMA)] was evaluated as a replacement for currently used bisphenol A glycerolate dimethacrylate (Bis-GMA) based dental restorative materials. Dental composites were prepared at different Is-UDMA and Bis-GMA concentrations. For these composites, the photocuring kinetics, volumetric shrinkage, viscoelastic properties, water sorption, and solubility were evaluated. The photocuring kinetics, followed by real-time IR spectroscopy, showed higher double-bond conversion (DC) values for the formulations containing the Is-UDMA monomer; the highest DC (82%) was achieved by the formulation prepared with only the Is-UDMA monomer. The volumetric shrinkage was reduced to 23.7% as compared with the dental resin formulated with Bis-GMA. The viscoelastic properties of the formulations containing both Is-UDMA and Bis-GMA monomers in a 50:50 composition were superior to the rest of the tested formulations, including those prepared with pure polymers. This behavior was explained in terms of a compromise between crosslinking and rigidity (or flexibility) of the resulting polymer network. A preliminary test on microleakage in a dental enamel demonstrated that the new Is-UDMA monomer is a potential replacement for the Bis-GMA monomer in dental restorative materials. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44591.
- Subjects
DENTAL resins; METHACRYLATES; DENTAL fillings; BISPHENOL A; BIOMATERIALS; THERMOGRAVIMETRY; PHOTOPOLYMERIZATION; PHOTOCHEMICAL curing
- Publication
Journal of Applied Polymer Science, 2017, Vol 134, Issue 11, pn/a
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.44591