The Difference of Impact Strength in Acrylic Resin Self-Cured with the Addition of Zirconium Dioxide (ZrO2) Nanoparticles

Abstract

<p><strong><em>Background:</em></strong><em> Self-cured acrylic resin is a material used for repairing broken and fractured dentures. Zirconium dioxide (ZrO2) is a reinforcing material that is being developed as an additive to the acrylic resin. <strong>Objective:</strong> to determine the effect of zirconium dioxide (ZrO<sub>2</sub>) addition on self-cured acrylic resin on impact strength. <strong>Material and Methods:</strong> This study was a true experimental laboratory study with the design of a post-test only control group design, using 24 pieces of self-cured acrylic resin measuring 65 x 10 x 2.5 mm divided into 4 groups with and without zirconium addition dioxide (ZrO<sub>2</sub>) nanoparticles. Zirconium dioxide (ZrO<sub>2</sub>) nanoparticles were silanized first by mixing the silane coupling agent. Furthermore, the impact strength was tested on the plate. The data obtained were analyzed using the One Way ANOVA test. <strong>Results:</strong> there were significant differences in the impact strength between the groups with a significance value of 0,000 (p <0.05). <strong>Conclusion:</strong> there was a difference in the increase of impact strength in acrylic resin self-cured with the addition of ZrO<sub>2</sub> nanoparticles concentrations of 3%, 5%, and 7%.</em></p><p><em><br /></em></p><p><strong><em>Key words:</em></strong><em> Self cured acrylic resin, zirconium dioxide, impact strength</em><em></em></p><p><strong><em> </em></strong></p><strong><em>Correspondence </em></strong><em>: Widaningsih, Department of Prosthodonti, Faculty of Dentistry, Hang Tuah University, Arif Rahman Hakim 150, Sukolilo, Surabaya, Phone 0818312757, Email: </em><a href="mailto:widaningsih2008@yahoo.com"><em>widaningsih2008@yahoo.com</em></a>