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- Title
Multi-walled Carbon Nanotube Reinforced Glass Ionomer Cements for Dental Restorations.
- Authors
Bhat, Kalambettu Aravind; Raghavan, R. Narasimha; Sangeetha, Dharmalingam; Ramesh, Sindhu
- Abstract
Glass Ionomer Cement (GIC) with incorporated multi-walled carbon nanotubes (MWCNT) were studied to evaluate its potential use as posterior restorative cement. MWCNT was mixed with GIC powder at 3 different ratios and cement pellets were formed by the conventional mixing procedure followed in dentistry. The fabricated composites characterized by FTIR and XRD revealed a faint interaction between MWCNT and the polymer. Thermal analysis and solubility studies did not show any significant difference between the commercial and MWCNT reinforced GIC. Scanning electron microscopy studies showed that higher concentrations of MWCNTs resulted in aggregation and consequently displayed inferior mechanical properties. The compressive strength and hardness were found to be higher in the 1 wt% of MWCNT reinforced GIC when compared with unmodified GIC and 2 wt% of MWCNT reinforced GIC. The coefficient of friction and wear, evaluated using a pin-on-disc tribometer, showed that while the incorporation of MWCNT reduced the friction and wear loss, the higher wt% was associated with greater wear loss when compared with lower MWCNT wt%. The MWCNT reinforced GICs could have potential applications as posterior restorative and core build-up materials.
- Publication
Trends in Biomaterials & Artificial Organs, 2013, Vol 27, Issue 4, p168
- ISSN
0971-1198
- Publication type
Academic Journal