نتایج جستجو برای: bonding agents
تعداد نتایج: 402433 فیلتر نتایج به سال:
Immediate Dentin Sealing or pre-hybridization implies the application of resin adhesive to freshly cut dentin after teeth preparation, before impression. has been suggested as an alternative delayed sealing (DDS), a technique in which is applied just final bonding indirect restorations. universal i.e used inlays, onlays, veneers, crowns and well documented clinically experimentally. Various typ...
BACKGROUND The study aims to investigate the effect of incorporation of sepiolite nanoparticles on the microtensile bond strength of an experimental dentin bonding to the human dentin. MATERIAL AND METHODS The sepiolite nanoparticles were incorporated into an experimental methacrylate-based dentin bonding system in concentrations of 0.0, 0.2, 1.0, 2.0, and 5.0 weight percents. The specimens w...
introduction: the purpose of this study was to evaluate the sealing ability of dentin bonding agents in root canals obturated with gutta-percha and mta. methods: forty-five single rooted human premolar teeth were decoronated so that remaining root portions were 12 mm in length. the samples were divided randomly into three experimental (n=13) and two control groups (n=3). all teeth were instrume...
A good adhesive is an important factor to consider in orthodontic bonding. Frequent bracket failure prolongs treatment duration and causes inconvenience to patient and operator. This study aimed to compare the effectiveness of two bonding agents, i.e. the self etching primer (SEP) and the conventional etch and bond (CEB) by monitoring the incidence, time and sites of bracket failure. Eighty ort...
This clinical report describes the fabrication and bonding of porcelain laminate veneer restorations in a patient with anterior open spaces. Laminate veneer restorations made of feldspathic porcelain were etched with 5% hydrofluoric acid, rinsed under tap water, ultrasonically cleaned with methanol, and primed with a chemically activated three-liquid silane bonding agent (Clearfil Porcelain Bon...
Background and Aim: An important purpose of adhesive dentistry is restriction of cavity preparation to carious dentin removal and conservation of sound dentin. Application of caries disclosing agents and cavity disinfectants can help achieving this goal. The aim of this study was to evaluate the effect of caries disclosing agents and cavity disinfectants on microleakage of composite resin resto...
Cytotoxicity evaluation of dentin bonding agents by dentin barrier test on 3-dimensional pulp cells.
OBJECTIVE The aim of this study was to evaluate the effects of 4 dentin-bonding agents on the cell viability of bovine derived cells. STUDY DESIGN Cytotoxicity of dentin-bonding agents (G-Bond [GB], Adper Prompt Self-Etch [APSE], Clearfil DC Bond System [CDCB], and Quadrant University-1-Bond [UB]) was analyzed with a dentin barrier test device using 3-dimensional (3D) pulp cell cultures. A co...
The bonding ability of bonding agents and composites from three manufacturers, which have both chemically and visible light activated systems, were evaluated by measuring the contraction gap width between the material and the cavity wall in a dentin cavity. The visible light cured composites were inferior to the same manufacturer's chemically cured composites in marginal adaptation to a cylindr...
Effects of dentin bonding agents (DBA) coronal leakage in root canal therapy (In – Vitro) Dr. MR. Sharifian* - Dr. E. Kazemifar** *- Assistant Professor of Endodontics Dept. - Faculty of Dentistry – Tehran University of Medical Sciences. **- Dentist. Background and Aim: Coronal sealing plays an important role in the prevention of root canal system reinfection and the access of irritants to peri...
Inappropriate bonding treatment tends to result in marginal fractures or microleakage caused by masticatory loading. The purpose of this study was to investigate the effect of adhesion of resin composites on marginal degradation. Five posterior resin composites were inserted into Class I preparations with and without etching or bonding treatment. These restored teeth were subjected to a three-b...
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