Abstract Objective The effect of polymerization time and resin shade on the depth cure (DOC) two nano-hybrid composites (Filtek Z250 XT IPS Empress Direct) was evaluated compared. Materials Methods Sixty specimens were prepared from shades (A1 A3) composites. allocated into groups that further divided three subgroups depending (20, 40, 60 sec; n = 5). After that, DOC by calculating polymerized ...

Objectives: The aim of this study was to compare the microtensile bond strengths (µ TBS) of three core materials with one lithium disilicate reinforced ceramic using two resin cements. Methods: Three core materials (Nulite F® (Biodental Technologies), Filtek Z250® (3M-ESPE), Prettau-Anterior® (Zirkonzhan, Germany)) were prepared as blocks (10×10×4 mm3) according...

The objective of this study was to evaluate the flexural strength (sigma f) and hardness (H) of direct and indirect composites, testing the hypotheses that direct resin composites produce higher sigma f and H values than indirect composites and that these properties are positively related. Ten bar-shaped specimens (25 mm x 2 mm x 2 mm) were fabricated for each direct [D250 - Filtek Z250 (3M-Esp...

Amaç: Bu çalışmanın amacı, indirekt rezin restorasyonların renk stabilitesi üzerinde farklı polimerizasyon prosedürlerinin etkisini değerlendirmektir. Gereç ve Yöntem: Kompozit rezinlerden (Filtek Z250, Gradia Plus, Ceramage, GrandioSO) 288 adet disk şeklinde numune laboratuvar hasta başı cihazı (I.Labolight Duo/II. Elipar S10) kullanılarak hazırlandı başlangıç ölçümleri yapıldı. numuneleri, bo...

OBJECTIVE The purpose of this study was to evaluate the effect of mouth rinse solutions on color stability, surface roughness and microhardness of two composite resins. MATERIAL AND METHODS Fifty test specimens of each composite (Filtek Z250 and Z350; 3M ESPE) were made using a teflon matrix (12x2 mm). Color, surface roughness and Knoop microhardness baseline measurements of each specimen wer...

Introdouction: Bleaching has become a common treatment for improving the appearance of natural teeth. However, the need to protect dental restorations from bleaching agent exposure is inevitable, as these agents may change the color of restorative materials by oxidation. Filtek P90 composite resin has recently been introduced with the aim of decreasing polymerization shrinkage. The purpose of...