Tribological, mechanical, and thermal properties of nano tricalcium phosphate and silver particulates reinforced Bis-GMA/TEGDMA dental resin composites

Saini, Sonu; Yadav, Ramkumar; Sonwal, Sonam; Meena, Anoj; Huh, Yun Suk; Brambilla, Eugenio; Ionescu, Andrei Cristian

doi:10.1016/j.triboint.2024.110010

Tribology International

2024

DOI: 10.1016/j.triboint.2024.110010

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Tribological, mechanical, and thermal properties of nano tricalcium phosphate and silver particulates reinforced Bis-GMA/TEGDMA dental resin composites

Sonu Saini,

Ramkumar Yadav,

Sonam Sonwal

et al.

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Cited by 6 publications

References 47 publications

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In-vitro study of the sliding-wear of CAD/CAM dental composite materials

Rodríguez-Rojas,

Sánchez-González,

Borrero-López

et al. 2025

Tribology International

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In-vitro study of the sliding-wear of CAD/CAM dental composite materials

Rodríguez-Rojas,

Sánchez-González,

Borrero-López

et al. 2025

Tribology International

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Optimizing dental composites with nano limestone and tricalcium particulate fillers: A study on physical and mechanical properties

Saini,

Meena

2024

Proceedings of the Institution of Mechanical Engineers, Part E:

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This study investigates the enhancement of dental composites using nano limestone and tricalcium phosphate fillers. Five composite formulations (TLC0-TLC4) were developed using organic polymers (Bis-GMA, TEGDMA, DMAEMA, CQ) and inorganic fillers. The methodology involved fabricating these composites and evaluating their physical and mechanical properties, including density, water absorption, solubility, polymerization shrinkage, hardness, compressive strength, and surface roughness. Results showed that density and voids increased with filler content, with TLC4 achieving the highest density at 1.39 ± 0.16 g/cm³. Water absorption and solubility increased, while polymerization shrinkage decreased to 0.66 ± 0.05% in TLC4. TLC4 demonstrated the highest hardness (72.8 ± 2.4 H.R.V.), compressive strength (248.41 ± 3.11 MPa), and surface roughness (0.62 ± 0.25 µm). Thermal analysis revealed significant weight loss and decomposition, while Fourier-transform infrared spectroscopy analysis provided detailed chemical composition insights. Wear resistance was evaluated through pin-on-disc tests and signal-to-noise ratio analysis, with FE-SEM confirming TLC4's superior performance. VIKOR analysis using the ENTROPY method ranked TLC4 as the most effective composite. This study offers valuable data for selecting and optimizing restorative dental materials.

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The Effect of the Resin Type and Filling Placement Techniques on the Degree of Conversion of Various Resin-Based Composites

Duman,

Cevik,

Doğan

2024

Applied Sciences

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The degree of conversion (DC) is crucial in determining the mechanical and clinical performance of resin-based composites (RBCs). This in vitro study aimed to evaluate the effect of the resin type and placement technique on the DC of RBCs (micro-hybrid, packable, hybrid, ormocer-based and flowable) polymerized with a second-generation LED light-curing unit (LCU). A total of 75 RBC samples were divided into three groups. Each RBC was placed into 4 mm diameter and 2 and 8 mm heigh Teflon molds with conventional standard, bulk, and incremental techniques (n = 5) and polymerized by LED LCU (229.153 mW/cm2) using the standard mode. After 24 h, DC was determined by FTIR spectrophotometry. The data were analyzed with two-way ANOVA and Tukey’s HSD test (p < 0.05). The DC of the RBCs varied between 62.8 and 29.2%. While the same DC was obtained for 2 mm samples at the top and the bottom surfaces, the DC of the 8 mm samples gradually diminished from the top surface to the bottom surface. Significant differences were observed in the DC of the RBCs. An optimal DC was obtained for packable, micro-hybrid and ormocer-based RBCs polymerized by LED LCU with the recommended curing times. Considering that the polymerization process is versatile, further in vitro studies are needed.

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Tribological, mechanical, and thermal properties of nano tricalcium phosphate and silver particulates reinforced Bis-GMA/TEGDMA dental resin composites

Cited by 6 publications

References 47 publications

In-vitro study of the sliding-wear of CAD/CAM dental composite materials

In-vitro study of the sliding-wear of CAD/CAM dental composite materials

Optimizing dental composites with nano limestone and tricalcium particulate fillers: A study on physical and mechanical properties

The Effect of the Resin Type and Filling Placement Techniques on the Degree of Conversion of Various Resin-Based Composites

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