Abstract
The use of fiber reinforced composites in dentistry is increasing due to its superior biomechanical properties. This study aimed to characterize the kenaf fiber reinforced nanohybrid dental composites derived from rice husk. Kenaf cellulose was treated with tetraethyl orthosilicate sol–gel which was characterized using scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). The experimental composites were fabricated using rice husk silica and kenaf cellulose at 1 wt% and 2 wt% and subjected for flexural and compressive strength tests. Fractured samples were examined using SEM. FTIR results suggested Si–O–C and Si–O–Si were formed on the cellulose surface at post-treatment. The flexural strength of the experimental composite was improved as the fiber load was increased. The composite with 2 wt% treated kenaf fibers showed higher compressive strength than the commercial composite groups. SEM analysis depicted fewer voids between matrix and kenaf fibers. In conclusion, 2 wt% fiber reinforced nanohybrid dental composites was successfully characterized and demonstrated a potential application in dental restorative material.
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Acknowledgments
We extend our thank to the Ministry of Higher Education Malaysia for funding this project under Fundamental Research Grant Scheme with project code: FRGS/1/2018/SKK14/USM/02/6. We also would like to thank Mr. Mohammed Yusof Soon Abdullah and Ms. Nora Aziz for their assistance in the biomaterial laboratory and lastly Dr Mohamad Arif Awang Nawi for the statistical consultation. The project is the part of thesis submitted to school of dental sciences, Universiti Sains Malaysia to fulfil the requirement of MSC Dentistry.
Funding
This research project was funded by the Ministry of Higher Education Malaysia under Fundamental Research Grant Scheme with project code: FRGS/1/2018/SKK14/USM/02/6. The APC was funded by Ministry of Higher Education Malaysia under Fundamental Research Grant Scheme with project code: FRGS/1/2018/SKK14/USM/02/6. Institutional Review Board Statement: This study was exempted for ethical approval from The Human Research Ethics Committee of USM as no human or animal subjects involved (JEPeM no: USM/JEPeM/21030277).
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Abbas, H., Alawi, R., Hussin, M.H. et al. Characterization of reinforced nanohybrid dental composite resin made of nano silica rice husk with the reinforcement utilizing kenaf fiber. Cellulose 30, 9693–9708 (2023). https://doi.org/10.1007/s10570-023-05486-0
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DOI: https://doi.org/10.1007/s10570-023-05486-0