نتایج جستجو برای: bonding
تعداد نتایج: 43811 فیلتر نتایج به سال:
introduction: retention of fiber reinforced composite posts depends on the bond strength between post and cement, and cement and root dentin. the aim of this study is to evaluate the bond strength of one type of fiber post to radicular dentin with different adhesive cements. materials and methods: crowns of 44 caries-free, human premolar were removed 2 mm below the cej and the roots were endodo...
we present detailed theoretical studies of the h-bonded complexes formed from interaction between 5-fluorouracil and various six-membered cyclic nitrosamine compounds. in this study, an investigation on intermolecular interactions in x-nu (x = ch2, sih2,bh, alh, nh, ph, o and s) complexes is carried out using density functional theory. the calculations are conducted on b3lyp/6-311++g** level ...
enaminones are those structures made up three various functional groups including carbonyl, alkeneand amine groups which arelocated along with each other in a conjugate fashion. these compoundsare of much attention due to special characteristics and numerous applications. in the paper, sixvarious enaminone structures were theoretically optimized and after concluding, were compared withequivalen...
Shear bond strength of dentin bonding agents to coronal and radicular dentin Dr. M. Barakatin * - Dr. MR. Malekypour * - Dr. P. Farjampour ** *Assistant Professor of Operative Dentistry & Dental Materials Dept., Faculty of Dentistry, Azad University (Khorasgan). ** Dentist. Abstract Background and Aim: The purpose of this study was to compare the shear bond strength of three bonding agents know...
An in vitro study of wet-bonding fissure sealant micro-leakage (Embrace) Dr. T. Masoum *- Dr. SH. Kasraie ** - Dr. M. Nafarie *** *Assistant Professor of Pedodontics Dept., Faculty of Dentistry, Hamedan University of Medical Sciences. **Assistant Professor of Operative Dentistry Dept., Faculty of Dentistry, Hamedan University of Medical Sciences. *** Dentist. Abstract Background and Aim: It has...
Silane and bonding of Resins to Ceramic Dr. K. Seyyedan* - Dr. M. Kalalipoor** - Dr. M. Javan***Assistant Professor of Fixed Prosthodontics Dept., Faculty of Dentistry, Shaheed Beheshti University of Medical Sciences. **Resident of Fixed Prosthodontics Dept., Faculty of Dentistry, Shaheed Beheshti University of Medical Sciences. Background and Aim: When bonding between two different dental mate...
Background and Aims: The aim of the present study was to evaluate the effect of applying hydrophobic resin after use of different generation of the bonding systems on nanoleakage. Materials and Methods: 20 third molar teeth were selected. The teeth were randomly divided into 4 groups of 5, each was treated using the fourth, fifth, sixth, and seven generation of dentin bonding. Then, the crown ...
In the present study, the microstructure and mechanical properties of the dissimilar joint of Inconel 625 (IN-625) superalloy to austenitic stainless steel AISI316L (SS-316L) via AWS-BNi3 interface layer and transient liquid phase (TLP) bonding process were evaluated and necessary conditions for creating an efficient joint were determined. TLP bonding was performed in temperature and time range...
In the present study, the microstructure and mechanical properties of the dissimilar joint of Inconel 625 (IN-625) superalloy to austenitic stainless steel AISI316L (SS-316L) via AWS-BNi3 interface layer and transient liquid phase (TLP) bonding process were evaluated and necessary conditions for creating an efficient joint were determined. TLP bonding was performed in temperature and time range...
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