Aim: This study evaluates the impact of titanium dioxide (TiO₂) nanoparticles (NPs) synthesized from Azadirachta indica (neem) leaf extract on the mechanical properties of polymethyl methacrylate (PMMA) when subjected to denture cleansers. Materials and methods: A total of 40 specimens were tested, divided into four groups of 10 each. The control group used pristine PMMA, while the experimental groups, PT1, PT2, and PT3, contained PMMA with 1.5, 3.0, and 5.0% wt of green-synthesized TiO₂ NPs, respectively. The synthesized NPs were characterized by Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray analysis (EDAX), and scanning electron microscopy (SEM). The mechanical properties of PMMA-TiO₂ nanocomposites synthesized with neem extract were evaluated using Vickers hardness, flexural strength tests, and surface roughness measurements after immersion in denture cleanser solutions. Results: The incorporation of green-synthesized TiO₂ NPs significantly improved the mechanical properties of PMMA even after immersion in denture cleansers. PT1 exhibited the highest flexural strength, while PT3 showed the highest surface hardness. SEM analysis confirmed the spherical morphology of the green-synthesized TiO₂ NPs, and FTIR and EDAX validated the chemical composition of the NPs. Exposure to denture cleansers did not significantly alter the surface roughness of the green-synthesized TiO₂-incorporated PMMA, suggesting good resistance to degradation. Conclusion: The study concludes that incorporating TiO₂ NPs synthesized with neem extract into PMMA improves its mechanical and surface properties and demonstrates higher stability when exposed to denture cleansers. Clinical significance: This study suggests that TiO₂ NPs, synthesized through an ecofriendly green chemistry process using neem extract, can be effectively integrated into PMMA to enhance its performance for dental applications. The improved mechanical and surface properties of green-synthesized TiO₂-incorporated PMMA offer potential benefits in extending the longevity and wear resistance of dental prosthetics, potentially improving patient outcomes by reducing the need for frequent repairs or replacements.
Impact of Denture Cleansers on the Properties of Green-synthesized Titanium Dioxide-enhanced Denture Base Resin: An In Vitro Study
Cicciu' M.;
2025-01-01
Abstract
Aim: This study evaluates the impact of titanium dioxide (TiO₂) nanoparticles (NPs) synthesized from Azadirachta indica (neem) leaf extract on the mechanical properties of polymethyl methacrylate (PMMA) when subjected to denture cleansers. Materials and methods: A total of 40 specimens were tested, divided into four groups of 10 each. The control group used pristine PMMA, while the experimental groups, PT1, PT2, and PT3, contained PMMA with 1.5, 3.0, and 5.0% wt of green-synthesized TiO₂ NPs, respectively. The synthesized NPs were characterized by Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray analysis (EDAX), and scanning electron microscopy (SEM). The mechanical properties of PMMA-TiO₂ nanocomposites synthesized with neem extract were evaluated using Vickers hardness, flexural strength tests, and surface roughness measurements after immersion in denture cleanser solutions. Results: The incorporation of green-synthesized TiO₂ NPs significantly improved the mechanical properties of PMMA even after immersion in denture cleansers. PT1 exhibited the highest flexural strength, while PT3 showed the highest surface hardness. SEM analysis confirmed the spherical morphology of the green-synthesized TiO₂ NPs, and FTIR and EDAX validated the chemical composition of the NPs. Exposure to denture cleansers did not significantly alter the surface roughness of the green-synthesized TiO₂-incorporated PMMA, suggesting good resistance to degradation. Conclusion: The study concludes that incorporating TiO₂ NPs synthesized with neem extract into PMMA improves its mechanical and surface properties and demonstrates higher stability when exposed to denture cleansers. Clinical significance: This study suggests that TiO₂ NPs, synthesized through an ecofriendly green chemistry process using neem extract, can be effectively integrated into PMMA to enhance its performance for dental applications. The improved mechanical and surface properties of green-synthesized TiO₂-incorporated PMMA offer potential benefits in extending the longevity and wear resistance of dental prosthetics, potentially improving patient outcomes by reducing the need for frequent repairs or replacements.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
