Aminotriazole functional silica incorporated BisGMA/TEGDMA resins as dental nanocomposites

This article is focused on the preparation and characterization of functional nanosilica incorporated dental resins with better mechanical, cytotoxicity, sorption, and solubility properties. Silica nanoparticles were synthesized via Stöber method and were functionalized with 3-amino-1,2,4-triazole. Dental nanocomposites were produced by embedding the functionalized nanosilica into bisphenol-A-glycidyl methacrylate/triethylene glycol dimethacrylate matrix to form B1–B6 series. This was achieved by mechanical mixing of the monomer (50:50 wt%), filler (10–60 wt%), initiator combination (CQ/EDMAB:0.1:0.4 wt%) and then followed by LED light curing (wavelength: 450–500 nm, power density:1000 mW cm ⁻² ) for 60 s. Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis techniques were used for characterization of the materials. Cytotoxicity tests were performed to evaluate cell viability and mechanical tests were done to check mechanical strength and stability of the materials. The mean sorption and solubility values of the materials were measured by making a series of experiments on different composite formulations.