نتایج جستجو برای: silorane resins

تعداد نتایج: 14649  

2014
Parnian Alizadeh Oskoee Soodabeh Kimyai Elham Talatahari Sahand Rikhtegaran Fatemeh Pournaghi-Azar Jafar Sajadi Oskoee

Background and aims. A proper bond must be created between the existing composite resin and the new one for successful repair. The aim of this study was to compare the effect of three mechanical surface treatments, using diamond bur, air abrasion, and Er,Cr:YSGG laser, on the repair bond strength of the silorane-based composite resin. Materials and methods. Sixty cylindrical composite resin spe...

Journal: :dental research journal 0
pouran samimi vahid alizadeh kamyar fathpour hamid mazaheri vajihosadat mortazavi

background: the current study evaluated the micro‑shear bond strengths of a new low‑shrinkage composite resin to dentin. materials and methods: in this in‑vitro study, 70 extracted premolars were assigned to one of seven groups ( n = 10): group 1: optibond solo plus (opt; kerr); group 2: se bond (se; kuraray); group 3: silorane system adhesive (ssa; 3m espe); group 4: optibond solo plus + ls bo...

Journal: :journal of dental research, dental clinics, dental prospects 0
hamid reza poureslami fatemeh sajadi maryam sharifi shahram farzin ebrahimi

background and aims. despite the increasing demand for adhesive restorations in pediatric dentistry, polymerization shrinkage and subsequent marginal microleakage remains a problem. the aim of this study was to evaluate of the sealing ability of novel low-shrinkage composite silorane in class v cavity of primary canines in comparison with three types of composite resin. materials and methods. n...

2014
Maria Spyrou Eugenia Koliniotou-Koumpia Pantelis Kouros Elisabeth Koulaouzidou Pavlos Dionysopoulos

OBJECTIVE The objective was to investigate the way that various surface treatments could influence the bond strength of the repair of methacrylate (MC) and silorane (SIL) composites. MATERIALS AND METHODS A total of 160 MC and SIL cylindrical specimens were polymerized and aged in artificial saliva solution for 7 days. Depending on the following surface treatment (diamond bur or air abrasion)...

جولانی, محمد, زاجکانی, الهام, فقیه‌زاده, سقراط,

Background and Objective: Polymerization shrinkage in composite resins is responsible for microleakage restoration. A recently introduced composite resin Filtek P90 is based on siloxanes and oxiranes which polymerize by cationic "ring opening" polymerization resulting in reduced polymerization shrinkage. The aim of this study was comparative evaluation of microleakage in class II cavities resto...

2016
Maryam Doozandeh Ali Asghar Alavi Zahra Karimizadeh

STATEMENT OF THE PROBLEM Sufficient adhesion between silorane/methacrylate-based composites and methacrylate impregnated glass fiber increases the benefits of fibers and enhances the mechanical and clinical performance of both composites. PURPOSE The aim of this study was to evaluate the compatibility of silorane and methacrylate-based composites with pre-impregnated glass fiber by using flex...

Journal: :Journal of the mechanical behavior of biomedical materials 2011
Sebastian Hahnel Sabine Schultz Christina Trempler Bastian Ach Gerhard Handel Martin Rosentritt

AIM The aim of this in vitro study was to determine the two-body wear resistance of modern direct dental restorative materials. METHODS Eight standardized specimens were prepared from 14 dental restorative materials (nano-, micro-, hybrid-, macrofilled composites; compomer, silorane, ormocer); a veneering composite (Sinfony) and enamel were used for reference. Vickers hardness (HV) and inorga...

تاج آبادی, زهرا, دانش کاظمی, علیرضا, داوری, عبدالرحیم, یاسایی, صغری,

Background: One of the orthodontic treatment problems, which causes marginal gaps and microleakage between tooth and composite is microleakage of composite bonding of orthodontic brackets. The microleakage formation permitting the passage of bacteria and oral fluids, which may cause white spot lesions under the brackets surface area.This is a clinical problem during orthodontic treatment. Few s...

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