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Influence of Cyclic Loading on Fiber Post and Composite Resin Core
Fiber post and composite resin core Failure load Cyclic loading
2009/9/11
From a selection of four kinds of post and core systems, including a fiber post and composite resin core, the purpose of this study was to determine the most effective system for the restoration of en...
Flexural Performance of Flowable versus Conventional Light-cured Composite Resins in a Long-term in vitro Study
Flowable composite Mechanical property Long-term durability
2009/9/11
The purpose of this study was to evaluate the flexural strength, flexural modulus, modulus of resilience, and water sorption of four flowable light-cured composite resins (FCRs). Results were then com...
Effects of Occlusal and Brushing Cycles on Wear of Composite Resins in Combined Wear Test
Combined wear Wear cycles Composite resin
2009/9/11
The effects of occlusal cycles and brushing cycles on wear of composite resins were investigated using a combined wear test, which carried out occlusal and toothbrush wear tests alternately. Worn volu...
Dentin Bond Strengths of Three Adhesive/Composite Core Systems using Different Curing Units
Tensile bond strength Composite core Curing units
2009/9/11
This study evaluated the tensile bond strengths of three adhesive/composite core materials to bovine dentin using three different curing units. Bovine dentin surfaces were ground with 600-grit SiC pap...
Effect of Bleaching on Color Change and Refractive Index of Dental Composite Resins
Bleaching Composites Color
2009/9/11
This study investigated the effects of three bleaching agents (Whiteness Perfect, Whiteness Super, and Whiteness HP) on the color change and refractive index of three dental composites (Admira, Durafi...
Three-dimensional Finite Element Analysis of Stress Distribution in Composite Resin Cores with Fiber Posts of Varying Diameters
Finite element analysis Composite resin core with fiber post Fiber post diameter
2009/9/11
Using three-dimensional finite element analysis (3D-FEA), stress distributions in the remaining radicular tooth structure were investigated under the condition of varying diameters of fiber post for f...
Effect of Inhomogeneity of Light from Light Curing Units on the Surface Hardness of Composite Resin
Light curing unit Light intensity Knoop hardness number
2009/9/11
This study investigated the characteristics of output light from different types of light curing units, and their effects on polymerization of light-activated composite resin. Three quartz-tungsten-ha...
The effect of resin shades on microhardness,polymerization shrinkage, and color change of dental composite resins
Resin shade Polymerization shrinkage Color change
2009/9/11
The present study sought to evaluate the effect of resin shades on the degree of the polymerization. To this end, response variables affected by the degree of polymerization were examined in this stud...
Development of dual-curing type experimental composite resin cement for orthodontic bonding –Effect of additional amount of accelerators on the mechanical properties–
Resin cement for bracket bonding Flexural strength Tensile bond strength of bracket
2009/9/11
In this study, a dual-curing type composite resin cement that included a photo-initiator and two accelerators was designed. In particular, special emphasis was made on addressing questions on the effe...
Effects of food-simulating liquids on the mechanical properties of a silorane-based dental composite
Food-simulating liquids Silorane Hardness Flexural strength
2009/9/11
The purpose of this study was to investigate the effects of food-simulating liquids (FSL) on the hardness and flexural strength (FS) of a new silorane-based composite and to compare it with methacryla...
Effects of different solutions on the surface hardness of composite resin materials
Composite resins Surface hardness Solution
2009/9/11
In this study, the surface hardness of five light-cured composite resins were evaluated, namely: filled (Estelite), nanofil (Ælite), unfilled (Valux Plus), hybrid (Tetric ceram), and Ormocer-bas...
Effect of loading weight on bond durability of composite — type resin cement under cyclic impact test (part 2).Loading with light weight of 100–120 g
Cyclic impact load Adhesive resin cement Bond durability
2009/9/11
The bond durability of composite-type resin cement was evaluated by means of cyclic impact tests using three different loads. In terms of experimental setup, a casting alloy, 12%Au-Pd-Ag, was used as ...
Examination of composite resins with electron microscopy,microhardness tester and energy dispersive X-ray microanalyzer
Ultrastructure Microhardness X-ray microanalysis
2009/9/11
This study was conducted to examine the ultrastructures of eight recently improved light-cure restorative composite resins with scanning and transmission electron microscopes (SEM and TEM). Additional...
Effectiveness of surface protection for glass-ionomer,resin-modified glass-ionomer and polyacid-modified composite resins
Surface protection Glass-ionomer cement Polyacid-modified composite resin
2009/9/11
The purpose of this study was to evaluate the effectiveness of several surface protectors for a glass-ionomer, a resin-modified glass-ionomer, and a polyacid-modified resin cement by determining dye u...
Cone-Beam Composite-Circling Scan and Exact Image Reconstruction for a Quasi-Short Object
Quasi-Short Object Cone-Beam Composite-Circling Scan
2009/9/4
Here we propose a cone-beam composite-circling mode to solve the quasi-short object problem, which is to reconstruct a short portion of a long object from longitudinally truncated cone-beam data invol...