Changes in the organic matrix of composite resins have been proposed to improve their surface properties. However, polishing systems may perform differently different materials. This study compared effect on roughness four containing resin monomers: Admira Fusion (nanohybrid pure ormocer), Aura Bulkfill Bis-GMA, UDMA), Charisma Diamond TCD-DI-HEA) and Vittra APS (nanofilled UDMA). Cylinders (N ...

The aim of this study is to evaluate the color stability, translucency and hardness eight different composite resins, after thermal cycling immersion in beverages. Six light-cured dimethacrylate-based (Clearfil Majesty Esthetic, Clearfil Posterior, Grandio, Grandio Flow, Arabesk Top, Valux Plus), an ormocer (Admira) a silorane-based (Filtek Silorane) were tested study. Fifteen samples (8x2 mm) ...

background and aims. polymerization efficacy affects the properties and performance of composite resin restorations. the purpose of this study was to evaluate the effectiveness of polymerization of two micro-hybrid, two nano-hybrid and one nano-filled ormocer-based composite resins, cured by two different light-curing systems, using fourier transformation infrared (ft-ir) spectroscopy and vicke...

We present the results of laboratory experiments on a down-scaled river levee constructed with clayey material collected from embankment where permanent resistivity instrument has operated since 2015. To create potential seepages through levee, two zones (5 × 4 cm and 10 2 cm) were filled sand during construction. Electrical tomography (ERT) technique Fiber Bragg Grating (FBG) technology used t...

Polymerization shrinkage of resin composite can compromise the longevity of restorations. To minimize this problem, the monomeric composition of composites have been modified. The objective of this study was to conduct a meta-analysis to assess the clinical behavior of restorations performed with low polymerization shrinkage resin composite in comparison with traditional methacrylates-based res...