Effect of Adding Different Concentrations of CaCO3-SiO2 Nanoparticles on Tear Strength and Hardness of Maxillofacial Silicone Elastomers

Abstract

The service life of a facial prosthesis is about six months as a result of the impairment in its mechanical or physical properties; thus, introducing a new reinforced maxillofacial silicone material can help in fabricating a long service life prosthesis that eliminates the burden for the patients both financially and psychologically. In this study, forty samples were fabricated by adding different concentrations of CaCO 3 -SiO 2 nanoparticles composite to maxillofacial silicone elastomer. These samples were divided into four groups, each one containing ten samples according to the concentration of the fillers (0%, 1%, 2% and 3%). All samples were tested for tear strength and hardness tests. The study results show that CaCO 3 -SiO 2 nanoparticles composite has a significant effect on both conducted tests. It can be concluded that reinforcing the silicone matrix with 2% CaCO 3 -SiO 2 nanoparticles composite can improve the tear strength of the tested silicone and increase its hardness.

Nanomaterials in Dentistry: Current Applications and Future Scope

“…Carbon nanotubes, polyvinyl alcohol, and silica-based NPs were used in addition to calcium phosphate to synthesize nanocomposites and sometimes scaffolds for improving mechanical strength and tissue regeneration [ 104 ]. In addition, the improvement of calcium carbonate-silicone dioxide NPs improves tear strength and hardness of maxillofacial silicone elastomers [ 105 ]. In another study, Persson et al synthesized glass-ceramic in Zirconia-silica NPs using the sol-gel method to improve the corrosion resistance and hardness [ 106 ].…”

Impact of nano-cellulose fiber addition on physico-mechanical properties of room temperature vulcanized maxillofacial silicone material

“…The nanofibers were evenly spread throughout the polymer (FESEM in Figure 7 ) and gradually formed networks inside the polymer, thus decreasing the inter-aggregate space, and increasing the stiffness and hardness of the material. 5 All experimental groups showed increased Shore-A hardness with CNF addition. This elevation of Shore-A hardness was directly proportional to the CNF content, because of the creation of a fiber–fiber mesh within a polymer matrix and the evenly distributed stiff and rigid CNF.…”

“…One such technique involves the inclusion of nanofibers or nanofillers to increase the material's tear and tensile strength, and improve its physical and mechanical characteristics, thus making it more useful in therapeutic settings. 4 , 5 …”

Impact of Cerium Oxide Nanoparticles Incorporation on Water Sorption and Solubility of Acrylic-Based Denture Soft Lining Material

“…Various agents or fillers, such as nanoparticles, have been included in these materials, and their properties have been investigated to assess their potential to mitigate the adverse effects of soft lining materials [20][21][22]. Soft denture liners' physical and mechanical properties experience significant enhancement with the incorporation of inorganic nanoparticles, even when used in small quantities [23,24]. Silane coupling agents can facilitate robust interconnections between organic and inorganic materials.…”