title: Sorption, solubility, bond strength and hardness of denture soft lining incorporated with silver nanoparticles.
abstract: The colonization of denture soft lining material by oral fungi can result in infections and stomatitis of oral tissues. In this study, 0 ppm to 200 ppm of silver nanoparticles was incorporated as an antimicrobial agent into composites to reduce the microbial colonization of lining materials. The effect of silver nanoparticle incorporation into a soft lining material on the sorption, solubility, hardness (on the Shore A scale) and tensile bond strength of the composites was investigated. The data were statistically analyzed using two-way ANOVA and Newman-Keuls post hoc tests or the chi-square Pearson test at the p < 0.05 level. An increase in the nanosilver concentration resulted in a decrease in hardness, an increase in sorption and solubility, a decrease in bond strength and a change in the failure type of the samples. The best combination of bond strength, sorption, solubility and hardness with antifungal efficacy was achieved for silver nanoparticle concentrations ranging from 20 ppm to 40 ppm. These composites did not show properties worse than those of the material without silver nanoparticles and exhibited enhanced in vitro antifungal efficiency.
authors.affiliation: Division of Materials Processing Technology, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland. chladek@interia.pl.
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Chladek
authors.forename: Jacek
authors.initials: J
authors.lastname: Kasperski
authors.forename: Izabela
authors.initials: I
authors.lastname: Barszczewska-Rybarek
authors.forename: Jarosław
authors.initials: J
authors.lastname: Zmudzki
mesh_terms: D000327:Adsorption; D003736:Dental Cavity Lining; D003778:Dentures; D006244:Hardness; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D012995:Solubility; D013718:Tensile Strength
chemical_list: D012834:Silver