Study of POSS on the Properties of Novel Inorganic Dental Composite Resin

Polymers

Jiahui Wang¹  Yi Sun²  Yizhi Liu²  Weili Xie³  Jianxin Yu⁴ 

[1] College of materials, Shanghai Dianji University, Shanghai 200000, China;Department of Astronautic Science and Mechanics, Harbin Institute of Technology, Harbin 150000, China;Department of Stomatology, Harbin Medical University, Harbin 150000, China;School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150000, China;

关键词: dental composite resin;    poss;    shrinkage;    hardness;    strength;   

DOI  :  10.3390/polym12020478

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown