Evaluation of resin composites modified with nanogold and nanosilver.
Silver and gold have been used for centuries as antimicrobial agents. The aim of the study was to investigate diametral tensile strength, microhardness, ion release and light transmission of experimental resin composites. Flowable dental composite SDR (Dentsply, United Kingdom) was modified by nanogold, nanosilver and silica addition. The metal ion release, light transmission study, microhardness, Diametral Tensile Strength were evaluated. The experimental nanosilver-containing composites released significant amounts of Al, Si, Sr and Ba ions up to 30 days, and negligible silver ion amounts. Significant Ag ion release occurred in nanosilver- and nanogoldmodified composite. Resin composites modified with nanogold and nanosilver deposited on silica carrier exhibit lower light transmission and have opaque appearance. All experimental composites exhibited higher microhardness in comparison to non-modified resin composites. Diametral Tensile Strength of the experimental composites was comparable to the control group.
Department of General Dentistry, Medical University of Łódź, Poland.
Jerzy
J
ŁSokołowski
Institute of General and Ecological Chemistry, Technical University of Łódź, Poland.
Małgorzata Iwona
MI
Szynkowska
Materials Science Laboratory, Medical University of Łódź, Poland. Institute of Polymer and Dye Technology, Technical University of Łódź, Poland.
Joanna
J
Kleczewska
Institute of Inorganic Chemistry and Technology, Cracow University of Technology, Cracow, Poland.
Zygmunt
Z
Kowalski
Institute of Inorganic Chemistry and Technology, Cracow University of Technology, Cracow, Poland.
Agnieszka
A
Sobczak-Kupiec
Institute of General and Ecological Chemistry, Technical University of Łódź, Poland.
Aleksandra
A
Pawlaczyk
Department of Conservative Dentistry, Medical University of Łódź, Poland.
Krzysztof
K
Sokołowski
Department of General Dentistry, Medical University of Łódź, Poland.
Monika
M
Łukomska-Szymańska
D003188:Composite Resins / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D006049:Gold Isotopes; D008027:Light; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013054:Spectrophotometry, Atomic; D013718:Tensile Strength
D003188:Composite Resins; D006049:Gold Isotopes; C111840:flowable hybrid composite; D012834:Silver; D006046:Gold