ArticleInternational journal of clinical pediatric dentistry2025
Effects of Thermocycling on Antimicrobial Activity, Contact Angle, Surface Roughness, and Microhardness of Nanomodified Glass Ionomer Cement: An
Article in International journal of clinical pediatric dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: The long-term stability and performance of nanomodified glass ionomer cement under conditions mimicking the oral environment must be studied. Aim: The aim of the study is to assess the effects of thermocycling on antimicrobial activity, contact angle, surface roughness, and microhardness of nanomodified glass ionomer cement. Materials and methods: Chitosan, titanium, zirconia, and hydroxyapatite (Ch-Ti-Zr-HA) nanoparticles were synthesized and combined through a one-pot method to create a single product. This product was subsequently incorporated into glass ionomer powder, and disc-shaped modified GIC specimens were fabricated in concentrations of 3%, 5%, and 10%, designated as group I, group II, and group III, respectively. Group IV served as the control, consisting of conventional glass ionomer cement. Characterization was performed. Each group was evaluated for antimicrobial activity and physical characteristics such as wettability, surface roughness, and microhardness before and after thermocycling. The specimens were thermocycled at 55°C, with a dwell time of 15 seconds for 30,000 cycles. The obtained data were statistically analyzed using an unpaired t-test. Results: Enhanced antimicrobial activity was observed in 5% Ch-Ti-Zr-HA nanomodified GIC against both Conclusion: Ch-Ti-Zr-HA nanomodified GIC has strong antimicrobial efficacy, enhanced wettability, decreased surface roughness, and improved microhardness even after artificial aging (thermocycling). These findings indicate improved surface characteristics, which can minimize microbial adhesion and contribute to a durable dental restorative material. How to cite this article: Vasudevan S, Paulraj J, Maiti S. Effects of Thermocycling on Antimicrobial Activity, Contact Angle, Surface Roughness, and Microhardness of Nanomodified Glass Ionomer Cement: An
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