Evaluation the tensile strength of cold-cured acrylic resin denture base material by adding silver nanoparticles

Acrylic resin (material of choice for complete denture base) was subjected to recurrent fracture during clinical use of patient due to its poor mechanical strength, and this lead to short clinical implementation of dentures. This work targeted to reinforce of cold-cured acrylic resin considered as fracture repairing denture base materials, reinforced with silver nanoparticles. Silver nanoparticles (Ag NPs) with different builds and sizes were chemically prepared by chemical reduction technique, the structural and morphological properties were characterized by (SEM) and UV-Vis spectra. SEM revealed the modest size of silver nanoparticles (ranging from 50.7–55 NM). Samples of current study, twenty of prepared samples grouped into two sets. The one set (group A)composed of acrylic resin without Ag NPs and another set(group B); acrylic resin blended with 2wt. % of Ag NPs. The tensile strength of the two sets was performed by universal testing machine. The Results show High significant difference in tensile strength occurred with the incorporation of 2% wt. Silver nanoparticles. It can be concluded that the addition of silver nanoparticles to cold cure acrylic resin material improves the tensile strength of cold-cure acrylic resin, therefore increase clinical service life of the fractured acrylic appliance.