Water sorption, solubility, degree of conversion, and surface hardness and topography of flowable composite utilizing nano silica from rice husk

Journal of Materials Research and Technology

Wan Muhamad Amir W. Ahmad¹  Yanti Johari²  Mohd Fadhli Khamis²  Zaihan Ariffin³  Dasmawati Mohamad³  Matheel AL-Rawas³  Adam Husein³ 

[1] Corresponding author.;Hospital Universiti Sains Malaysia, Health Campus, 16150 Kubang Kerian, Kota Bharu, Kelantan, Malaysia;School of Dental Sciences, Universiti Sains Malaysia, Health Campus, 16150 Kubang Kerian, Kota Bharu, Kelantan, Malaysia;

关键词: Flowable;    Resin composites;    Rice husk;    Water sorption;    Solubility;    Nanohybrid silica;   

DOI  :  

来源: DOAJ

【 摘 要 】

This study aimed to evaluate water sorption (WS), solubility (SO), surface topography, degree of conversion (DC) and Vickers hardness (VH) of experimental flowable composites (EFCs) made from nanohybrid silica extracted from rice husk in comparison with Revolution Formula 2™ (RF2). Samples of EFCs (EFC50B and EFC40B) and RF2 were prepared in different molds depending on the test type (n = 5). Data was analyzed using non-parametric Kruskal–Wallis and Mann–Whitney tests at p = 0.05. In Mann–Whitney test, the values of EFC50B and EFC40B in WS test were increased after immersion when compared to RF2 (p < 0.05) whilst, the SO values of EFC40B were higher when compared to the other groups (p < 0.05). The 40 s light-curing resulted in the most suitable DC and VH values of EFC40B while the 80 s light curing was more optimal for EFC50B when compared to other exposure time (p < 0.05). SEM pictures showed different surface characteristics between experimental and commercial products before and after immersion. In conclusion, the EFCs have promising results to be a potential product derived from agricultural bio-waste.

【 授权许可】

Unknown