Low shrinkage light curable dental nanocomposites using SiO2 microspheres as fillers

Graphene Oxide-Silica Composite Fillers into the Experimental Dental Adhesives for Potential Therapy

“…[1] For example, the resin composites have higher light transmission and adequate mechanical properties than ordinary resins with the addition of monodispersed SiO2 microspheres. [2] In addition, the incorporation of the modified nanoclay provided a dental bond system with higher shear bond strength. [3] Generally, silane coupling agent was used to improve the interface reaction between SiO2 nanoparticles and polymer.…”

Effects of MgO whiskers on mechanical properties and crystallization behavior of PLLA/MgO composites

“…The results have shown that the addition of n-MgO is significantly beneficial in improving both the modulus and tensile strength of PLLA and in preventing pH reduction, which suppresses inflammation. Nonetheless, the PLLA/n-MgO composites were brittle due to the decrease of toughness, which is usually a problem of composites with particles fillers [16,17]. By comparison, whisker fillers have the better ability of reinforcement and toughening [18,19].…”

Evaluation of polymerization shrinkage of dental composites by an optical method

“…The introduction of dental composites based on a polymer matrix replacing traditional amalgam has been causing great changes in esthetic restorative dentistry [1]. A considerable amount of studies have been conducted on these resins, leading to significant improvements in their properties [2,3].…”

“…During this process, the molecules that are used to interact only by secondary forces begin to be covalently bonded, leading to an increase in density due to a total volume reduction [1]. According to Ferracane [6], this shrinkage varies between 1.5 and 5%, depending on the material composition.…”