The effects of reinforced cellulose nanocrystals from sugarcane bagasse fiber on the hardness of glass ionomer cements

• Main Authors: Hernindya Dwifulqi (Author), Rosalina Tjandrawinata (Author), Joko Kusnoto (Author)
• Format: Book
• Published: Wolters Kluwer Medknow Publications, 2021-01-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.
• Notes: 2580-6548; 2541-321X; 10.4103/SDJ.SDJ_53_20
• Keywords: bagasse; cellulose nanocrystal; glass ionomer cement; sugarcane; vickers hardness; Dentistry; RK1-715
• Source: Scientific Dental Journal, Vol 5, Iss 1, Pp 33-36 (2021)

Background: Advances in nanotechnology research make the use of cellulose nanocrystals (CNCs) attractive for improving the mechanical properties of glass ionomer cement (GIC). Sugarcane bagasse (Saccharum officinarum L.) is a CNCs source with a high CNC content (72.5%). Objective: This study aimed to determine the effect of the addition of sugarcane bagasse CNCs on the mechanical properties of GIC. Methods: In total, 42 GIC (Fuji IX, GC, Japan) samples were divided into six groups, with various concentrations of CNCs, added to the samples. After 24 h immersion in distilled water at 37°C, the samples were analyzed using the Vickers hardness test. The samples were also characterized by transmission electron microscopy (TEM). For statistical analysis, a one-way analysis of variance, followed by Tukey's post hoc test, was applied. A value of P < 0.05 denoted statistical significance. Results: The TEM revealed crystalline particles in the form of nanocrystals, with varying particle sizes (lengths of 100-200 nm and diameters of 4-19 nm). The addition of 0.4% of CNCS from bagasse fiber to GIC increased the Vickers hardness of the material by 38.89% (P < 0.05). Conclusion: The addition of 0.4% of sugarcane bagasse can improve the hardness of GIC.