The Effect of Silica Particles Derived from Rice Husk on Some Mechanical Properties of a High Impact Heat Cure Acrylic Resin
Journal: Journal of Medicinal and Chemical Sciences (Vol.6, No. 7)Publication Date: 2023-07-01
Authors : Azza Walaaldeen Khairi; Ghassan Abdul-Hamid Naji;
Page : 1646-1659
Keywords : High impact acrylic resin; Silica; Nanofiller;
Abstract
Background: Despite the fact that the mechanical properties of PMMA appliances and goods are not ideal, the goal of this research was to reinforce high impact acrylic dentures with rice husk-derived silica in various concentrations to improve some of the mechanical qualities of the denture base.
Materials and Method: Based on the pilot study made in College of Dentistry University of Baghdad, to create the specimens, silica particles from a rice husk source were added to high impact heat cure resin at 1 wt.% and 3 wt.% (by weight). On the basis of the three tests conducted the transverse strength, impact strength and hardness tests, the prepared samples were evaluated using Fourier-transform infrared spectroscopy (FT-IR), particle size analysis, and a field emission scanning electron microscope (FE-SEM).
Results: The results revealed that the addition of silica particles yielded a significantly improvement in transverse strength test (P-value= 0.001), and non-significantly increase in both impact strength and hardness values compared with the control group.
Conclusion: Silica particles prepared from natural resource waste was successfully added into the high impact acrylic resin. It seemed that adding 1 wt.% and 3 wt.% silica particles. The most beneficial effects were obtained by improving the mechanical properties of high impact acrylic dentures.
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