Antibacterial Effect, Fluoride Release and Compressive Strength of Conventional Glass Ionomer Containing Different Nanoparticles

Abstract

Glass-ionomer cements (GICs) were invented in the late 1960s, and are now widely accepted as dental restoratives. They are easily prepared by mixing a powder component with an aqueous solution and allowing the resulting paste to set and harden. However, their brittle nature and low mechanical strength are usually considered to be their most significant disadvantages. Efforts have been made to improve the physical and mechanical properties of these materials by addition of a variety of fillers. Recently, nanoparticles such as nano- titanium dioxide and nano-hydroxyapatite have been incorporated into glass-ionomers in an attempt to enhance their physical, mechanical and antibacterial properties.