Abstract
Various amounts of methacryl polyhedral oligomeric silsesquioxane (POSS) were explored to be incorporated into novel nano SiO2 dental resin composites using light curing method. The scanning electron microscopy (SEM), optical microscopy, fourier transform infrared spectroscopy (FTIR), nanoindentation, nanoscratch and three-point flexure tests were performed. The volumetric shrinkage and mechanical properties such as hardness, elastic modulus, resistance, flexural strength and fracture energy were analyzed. With the additions of POSS, the volume shrinkage decreased and the mechanical properties initially increased. The effects of POSS on these properties were studied to provide a reference for clinically selecting a composite resin with excellent properties.
Highlights
The composite resin is the most important repairing material for tooth defects
Our previous works [30,31], contents of methacryl were of methacryl in the resin systems could improve the mechanical added into dental composite resins and BG matrix dental composite properties of the composite
polyhedral oligomeric silsesquioxane (POSS) reduced the shrinkage of resins due POSS, the volume shrinkage decreased
Summary
The composite resin is the most important repairing material for tooth defects. Bis-GMA for (EDMAB), and evaluated mechanical and thermal properties and polymerization shrinkage with prepared novel dental restorative composites. Our previous works [30,31], contents of methacryl were of methacryl substitution of in the resin systems could improve the mechanical added into dental composite resins and BG (barium oxide glass powder) matrix dental composite properties of the composite. POSS were resins, respectively, and someIn properties including polymerization shrinkage and mechanical added were into dental composite resins and BG (barium oxide glass powder) matrix dental composite behavior evaluated. POSS transform were explored to be incorporated into novel nano microscopy optical microscopy, fourier infrared spectroscopy (FTIR), SiO2 matrix dental resin composites using lightflexure curing method. Were performed, and the effects of the contents of POSS on the volumetric andthree-point fracture energy were shrinkage, hardness, elastic modulus, resistance flexural strength and fracture energy were studied
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