Surface morphology and mechanical properties of new-generation flowable resin composites for dental restoration.

摘要: Abstract Objectives The purpose of this study was to characterize the surface morphology and elastic properties four dental restorative flowable composites currently on market (Venus Diamond Flow, Vertise Filtex Supreme XT Surefil SDR Flow). Additionally, one adhesive system (Adhese One F) non-flowable composite Diamond) have also been characterized as control materials. Methods Surface studied by both scanning electron atomic force microscopy, modulus hardness measured instrumented indentation. Grain analysis performed microscopic images, statistical carried out results nanoindentation measurements. Results It observed that Vertise, Filtek exhibit stiffness similar Venus Diamond, whereas Flow presents itself more compliant composite, with Adhese showing intermediate stiffness. images confirmed general rule mechanical improve increasing filler loading, notable exception shows high 9.1 ± 0.6 0.43 ± 0.03 GPa, respectively, for an estimated loading only ∼40% volume. Significance Whereas generally are not possess sufficiently strong bulk restorations, exceptions can eventually be found upon appropriate laboratory screening, presently seems case Flow. However, real practice in actual restorations respective clinical evaluation required final assessment suggested results.