نتایج جستجو برای: hybrid resin composites stored dry or wet up to 30 days
تعداد نتایج: 11239324 فیلتر نتایج به سال:
The hybrids composite has emerged and have the potential reinforcement material for composites and thus gain attraction by many researchers. This is mainly due to their applicable benefits have they offer low density, low cost, renewable, biodegradability and environmentally harmless and also comparable mechanical properties with synthetic fiber composites. In the project natural fiber and glas...
Wet anaerobic storage of algal biomass is a promising preservation approach that can ensure continuous supply these feedstocks to biorefineries year-round. An effective solution must minimal dry matter loss and change in biochemical composition during storage. Therefore, the objective this study investigate Nannochloropsis gaditana through wet its impact on quality. Prior storage, algae sample ...
OBJECTIVE To evaluate the translucency characteristics of new flowable bulk-filling resin composites at various thicknesses. Experimental short fibre-reinforced composite was also tested. METHODS Two new brands of flowable bulk composites (Venus Bulk Fill and SureFil SDR Flow), experimental short fibre-reinforced resin composite (FC) and, as control, conventional flow (Filtek Supreme Flow XT ...
in this study, hybrid of phenol formaldehyde-fish glue was used to replace the chemical resin in plywood manufacturing. for this purpose, fish glue was applied at three levels including 0, 10 and 20 percent based on the dry weight of resin. physical and mechanical properties of manufactured plywoods were measured. thickness swelling after 2 and 24 hours immersion in tap water, bending strength,...
PURPOSE More than five hundred million direct dental restorations are placed each year worldwide. In about 55% of the cases, resin composites or compomers are used, and in 45% amalgam. The longevity of posterior resin restorations is well documented. However, data on resin composites that are placed without enamel/dentin conditioning and resin composites placed with self-etching adhesive system...
The objective of this study was to investigate the mechanical properties of a low-shrinkage acrylate liquid crystalline resin matrix (ALCRM), (4-3-(acryloyloxy)-2-hydroxypropoxy) phenyl 4-(3-(acryloyloxy)-2-hydroxypropoxy) benzoate, combined with nano-hydroxyapatite (na-HA). The ALCRM monomer and diluent monomer triethylene glycol dimethacrylate (TEGDMA) were mixed at a mass ratio of 7:3 to pre...
OBJECTIVES The aim of this study was to evaluate the effect of three different drinks on the color parameters of four different restorative materials. MATERIALS AND METHODS Three different composites (Filtek Ultimate Universal Restorative, Filtek Ultimate Flowable, and Filtek Silorane, 3M ESPE) and a polyacid-modified composite resin material (Dyract XP, Dentsply DeTrey GmbH) were evaluated. ...
OBJECTIVE • To measure urinary nerve growth factor (NGF) in women with overactive bladder (OAB)-dry and OAB-wet and investigate the association of urinary NGF expression with these factors. PATIENTS AND METHODS • Differentiation between OAB-wet and OAB-dry was based on symptoms and a 3-day voiding diary. • Urinary NGF levels were measured by enzyme-linked immunosorbent assay (ELISA). • The ur...
Effects of different dentin bonding agents on nanoleakage and hybrid layer thickness Dr. M. Ghavamnasiri* - Dr. F. Maleknejad* - Dr. H. Ameri** - Dr. MJ. Moghadas** *- Associate Professor of Operative Dentistry Dept. – Faculty of Dentistry – Mashhad University of Medical Sciences. **- Assistant Professor of Operative Dentistry Dept. – Faculty of Dentistry – Mashhad University of Medical Science...
In this study, bio-oil from fast pyrolysis of renewable biomass was added by the mass of phenol to synthesize bio-oil phenol formaldehyde (BPF) resins, which were used to fabricate glass fiber (GF) reinforced BPF resin (GF/BPF) composites. The properties of the BPF resin and the GF/BPF composites prepared were tested. The functional groups and thermal property of BPF resin were thoroughly inves...
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