Abstract
Background: Nanoparticles such as multi-walled carbon nanotubes present resistance, resilience and biocompatibility with human tissues and could be incorporated into glass ionomer cement materials to improve their characteristics. Therefore, the aim of the present study was to evaluate the effect of multi-walled carbon nanotube (MWCNT) incorporation on different glass ionomer cements’ compressive (σc) and diametral tensile strengths (σt). Methods: Eighty (80) specimens were divided into four groups (N = 20/gr) according to the glass ionomer cement type (conventional and high-viscosity) and the presence or absence of multi-walled carbon nanotubes. Samples were kept in water for 24 h prior to the tests. Data were analyzed using two-way ANOVA and Tukey’s test (p = 0.05). Results: For both σc (p = 0.1739) and σt (p = 0.2183), the glass ionomer cements’ viscosity did not influence the results. The presence of MWCNTs decreased the mean compressive strength values (p = 0.0001) and increased the diametral tensile strength (p = 0.0059). For both conventional and high-viscosity glass ionomer cements, the compressive strength values were higher than the tensile strength data. Conclusions: Regardless of the cement viscosity, the multi-walled carbon nanotube incorporation reduced the compressive strength and increased the tensile strength values.
Highlights
The atraumatic restorative treatment (ART) technique is based on minimal intervention philosophy that removes decayed tissue using hand tools followed by cavity restoration with glass ionomer cement (GIC) [1]
The present study aimed to evaluate the effect of incorporating multi-walled carbon nanotubes (MWCNTs) into GICs with different viscosities through the evaluation of the carb
The results show that the mechanical properties were nanotubes (MWCNTs) into GICs with different viscosities through the evaluation of t affected by the MWCNT incorporation, rejecting the null hypothesis
Summary
The atraumatic restorative treatment (ART) technique is based on minimal intervention philosophy that removes decayed tissue using hand tools followed by cavity restoration with glass ionomer cement (GIC) [1] This technique is performed in situations where conventional rotary instruments cannot be used, e.g., a lack of electricity, or in special situations, such as children or special patients, among them, those who suffer from anxiety [2,3]. GICs are suitable materials because of their properties such as biocompatibility, insulating effect in the oral temperatures, antibacterial capacity, fluoride release and the Nanoparticles such as multi-walled carbon nanotubes present resistance, resilience and biocompatibility with human tissues and could be incorporated into glass ionomer cement materials to improve their characteristics.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
