STUDIA UBB CHEMIA, LXIV, 2, Tom II, 2019 (p. 471-481) (RECOMMENDED CITATION) DOI:10.24193/subbchem.2019.2.40 Dedicated to Professor Ioan Bâldea on the Occasion of His 80 th Anniversary SOLUBILITY, DUCTILITY AND RESILIENCE OF A PMMA DENTURE RESIN WITH GRAPHENE AND SILVER NANOPARTICLES ADDITION CECILIA BACALI a , SMARANDA BUDURU a , VIVI NASTASE b , ANTARINIA CRACIUN a , DOINA PRODAN c , MARIANA CONSTANTINIUC a , MANDRA BADEA a , MARIOARA MOLDOVAN c , CODRUTA SAROSI c* ABSTRACT: PMMA denture base materials are used for several decades without significant improvements in their composition. The addition of different fillers has been proved to improve some of the acrylic resin’s characteristics. Recent studies focused on enhancing PMMA properties using nanoparticles. In our study we assessed the effect of adding graphene and silver nanoparticles on the solubility, ductility and resilience of a commercial denture base acrylic resin. Keywords: solubility PMMA, ductility, resilience acrylic resin, graphene, silver nanoparticles INTRODUCTION Acrylic resins have a wide applicability in medicine and among them PMMA are the most used materials in denture fabrication because of their convenient characteristics, such as dimensional stability, ease of handling and processing [1]. However, they are brittle materials with low fracture strength and insufficient surface hardness [2]. Since PMMA resins are relatively brittle a Iuliu Hatieganu University of Medicine and Pharmacy, Department of Prosthodontics and Dental Materials, 32 Clinicilor str, RO-400006, Cluj-Napoca, Romania b Institute for Computational Linguistics, University of Heidelberg, Im Neuenheimerfeld 325, Heidelberg, 69120, Germany c Babes Bolyai University – Institute of Chemistry Raluca Ripan, Department of Polymer Composites, 30 Fantanele str., RO-400294, Cluj-Napoca, Romania *Corresponding author: codruta.sarosi@gmail.com