Color characteristics of the shades for different filler type resin composites were compared in the reflectance and transmittance modes, and specular component included (SCI) and specular component excluded (SCE) geometries for reflectance mode. Resin composites and shades used in this study were submicron filled Estelite Sigma (Sigma: Inc, A2, A3, B3, C2, OA2, OA3) and nanofilled Filtek(TM) Su...

Statement of the Problem The clinical success of ceramic depends on the quality of the bond between the zirconia and resin cement. Purpose In the present study, the effects of universal and conventional MDP-containing primers were evaluated on the shear bond strength of zirconia ceramic and nanofilled composite resin. Materials and Method Thirty blocks of zirconia ceramic (6mm×2mm) were pre...

The purpose of this study was to evaluate the effect of aging protocols on surface gloss of composites. Cylindrical resin composite specimens (6 mm in diameter, 1 mm thick) were fabricated and divided into three groups (N = 60): microfilled (MiFi), nanohybrid (NaHy), and nanofilled (NaFi). Specimens were distributed into four aging subgroups: thermocycling (5° to 55°C, 15,000 cycles); ethanol i...

This work focuses on the rheological properties and morphological features, assessed by Atomic Force Microscopy (AFM), of epoxy composites loaded with two very similar graphene-based nanoplatelets, i.e. GNP56 GNP60, differing fundamentally for exfoliation degree (56% 60%, respectively) consequently concentration carboxylated groups nanoparticle edges. The incorporation GNP60 nanostructures insi...

OBJECTIVE The aim of this study was to evaluate the clinical performance of a glass ionomer restorative system compared with a microfilled hybrid posterior composite in a four-year randomized clinical trial. METHODS A total of 140 (80 Class 1 and 60 Class 2) lesions in 59 patients were either restored with a glass ionomer restorative system (Equia, GC, Tokyo, Japan), which was a combination o...

AIM The purpose of this study was to evaluate the color stability of resin composit using different finishing systems and drinks. MATERIALS AND METHODS Composit disks (5 mm diameter, 2 mm thickness) were prepared for each nanofilled composite using a brass mold. The specimens were divided into 5 finishing system groups Mylar strip (Mylar, DuPont, Wilmington, Del., USA), Soft Lex (3M(™) ESPE(™...