搜索结果: 1-15 共查到“医学 Composite resins”相关记录17条 . 查询时间(0.063 秒)
Diametral tensile strength of composite resins submitted to different activation techniques
Composite resins Physical properties Tensile strength
2009/10/19
The aim of this study was to evaluate the diametral tensile strength (DTS) of composite resins submitted to different curing techniques. Four composite resins were tested in this study: Targis (Ivocla...
Effect of light-activation methods and water storage on the flexural strength of two composite resins and a compomer
Compomers Dental materials Composite resins
2009/10/19
The present study evaluated the flexural strength of three composite resins recommended for direct esthetic restorations: a polyacid modified composite (Dyract AP), a unimodal composite resin (Filtek ...
Flexural and diametral tensile strength of composite resins
Composite resins Tensile strength Physical properties
2009/10/16
This study evaluated the flexural strength (sf) and the diametral tensile strength (st) of light-cured composite resins, testing the hypothesis that there is a positive relation between these properti...
Acid Etching of Titanium for Bonding with Veneering Composite Resins
Titanium Acid etching Composite resin
2009/9/14
Commercially pure titanium (cpTi) was etched using three concentrated acids: 18% HCl, 43% H3PO4, and 48% H2SO4. The bond strengths between five types of veneering composite resin and eight cpTi treatm...
Effects of Occlusal and Brushing Forces on Wear of Composite Resins
Wear test Occlusal force Brushing force
2009/9/14
Effects of occlusal and brushing forces on the wear of composite resins were investigated using three different wear tests: simulated occlusal wear test, toothbrush wear test, and combined wear test w...
Effects of LEDs on Microhardness and Temperature Rise of Dental Composite Resins
LEDs Composite resins Microhardness
2009/9/14
The purpose of this study was to examine the effects of LEDs on the polymerization of dental composite resins. Three composite resins and two LED units were used to evaluate the latter's effects on mi...
Immobilization of Simulated Reducing Agent at the Surface of SiO2 Fillers in Dental Composite Resins
Immobilization Simulated reducing agent SiO2 fillers
2009/9/14
To reduce the leachability of reducing agents from composite resins, immobilization of a simulated reducing agent at the surface of SiO2 fillers was examined. SiO2 plates were immersed in 2% 3-aminopr...
Effect of Filler Properties in Composite Resins on Light Transmittance Characteristics and Color
Filler Light transmittance Color
2009/9/14
The purpose of this investigation was to examine the effect of filler particle size and shape as well as filler content on light transmittance characteristics and color of experimental composite resin...
Effects of abrasive and fiber components in medium on wear of composite resins
Composite resin Wear Medium
2009/9/11
Effects of abrasive and fiber components in a medium on the wear behavior of composite resins were evaluated. Calcium diphosphate and methyl cellulose were included in the medium as abrasive and fiber...
The Effects of Light Intensity and Light-curing Time on the Degree of Polymerization of Dental Composite Resins
Light intensity Light-curing time Polymerization
2009/9/11
The aim of this study was to investigate the effects of light intensity and light-curing time on the polymerization of composite resins. Four composite resins were light-cured with different light-cur...
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...
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...
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...
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...