搜索结果: 1-15 共查到“口腔材料学 Composites”相关记录31条 . 查询时间(0.144 秒)
Fracture Strength and Bending of Fiber-Reinforced Composites and Metal Frameworks in Fixed Partial Dentures
Denture Partial Fixed Resin-Bonded Inlays fiberglass reinforced poly-mers
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2009/12/16
Objective: This in vitro study evaluated the fracture strength and bending amount of twotypes of fiber reinforced composite (FRC) and cast metal frameworks used for fabrication of inlay fixed partial ...
Microleakage of Class II Combined Amalgam-Composite Restorations Using Different Composites and Bonding Agents
Dental Leakage Dental Restoration Permanent Dental Amalgam Compos-ite Resins
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2009/12/15
Objective: The purpose of the present study was to assess the microleakage of composite restorations with and without a cervical amalgam base and to compare the results of dif-ferent composites and bo...
The effect of flowable and dual-cure resin composite liners on gingival microleakage of posterior resin composites
Microleakage Posterior Composite Restoration Flowable Dual-cure liner
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2009/12/14
Background and Aim: Microleakage has been always a major concern in restorative dentistry. The curing contraction of composites still presents a problem with controlling microleakage and postoperative...
Dentin Bond Strength of Two One-Bottle Adhesives after Delayed Activation of Light-Cured Resin Composites
Composite Resins Dentin-Bonding Agents Prime and Bond NT Dental Bonding
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2009/12/7
Objective:
Adverse surface interactions between one-bottle adhesives and chemical-cured composites may occur with delayed light activation of light-cured composites. The purpose of this study was to ...
Evaluation of the roughness and mass loss of the flowable composites after simulated toothbrushing abrasion
Composite resins Tooth abrasion Surface properties Toothbrushing
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2009/10/20
The purpose of this study was to measure mass loss and surface roughness changes of different brands of flowable resin composites after a simulated toothbrushing test. The null hypotheses were that th...
Compressive strength and compressive fatigue limit of conventional and high viscosity posterior resin composites
Composite resins Physical properties
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2009/10/20
The purpose of this study was to compare the compressive strengths and compressive fatigue limits of three posterior composite resins (Filtek P-60, Surefil and Prodigy Condensable) and a universal res...
Shrinkage stress of three composites under different polymerization methods
Composite resins Dental stress analysis Physical and chemical properties
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2009/10/19
The aim of this study was to evaluate the shrinkage stress of three composites under different polymerization methods: halogen conventional polymerization (G1), halogen "soft-start" polymerization (G2...
Flexural strength and modulus of elasticity of different types of resin-based composites
Composite resins Physical and chemical properties Inorganic particles
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2009/10/16
The aim of the study was to test whether the filler composition of resin composites influences their flexural strength and modulus of elasticity. Flexural strength and modulus of elasticity were obtai...
In vitro toothbrushing abrasion of dental resin composites:packable,microhybrid,nanohybrid and microfilled materials
Composite resins Surface properties Physical properties Toothbrushing
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2009/10/16
This study evaluated weight loss and surface roughening after toothbrushing of different resin composites: one packable (Solitaire 2, Heraeus Kulzer), one microhybrid (Charisma, Heraeus Kulzer), one n...
Flexural strength and hardness of direct and indirect composites
Composite resins Dental materials Hardness
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2009/10/16
The objective of this study was to evaluate the l exural strength
() and hardness (H) of direct and indirect composites, testing the hy-
f potheses that direct resin composites produce higher and ...
Preparation and Properties of Chitosan/Calcium Phosphate Composites for Bone Repair
Chitosan Calcium phosphate Composites
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2009/9/15
Chitosan/calcium phosphate (CaP) composites composed of bioactive calcium phosphate and flexible chitosan were made by a simple mixing-and-heating method. Phase composition, morphology, and mechanical...
Influence of Centrifugal Force on Filler Loading of Resin Composites
Centrifugal force Composite Light-polymerizing apparatus
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2009/9/15
This study examined the influence of centrifugal force on the filler loading of composites using a light-polymerizing apparatus combined with a centrifuge. To assess uneven filler particle distributio...
Mechanical Properties of Woven Glass Fiber-Reinforced Composites
Mechanical property Glass fiber Composite
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2009/9/14
The aim of this investigation was to measure the flexural and compressive strengths and the corresponding moduli of cylindrical composite specimens reinforced with woven glass fiber. Test specimens we...
Color Stability of Resin Composites after Immersion in Different Drinks
Color stability Resin composite Drink
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2009/9/14
The purpose of this study was to evaluate the discoloration of two nanohybrids, two microhybrids, and a posterior composite resin restorative material upon exposure to different drinks — namely tea, c...
Cytotoxicity Evaluation of Two Different Composites with/ without Fibers and One Nanohybrid Composite
Cytotoxicity Fiber-reinforced systems Nanohybrid composite
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2009/9/14
In this study, cytotoxicity of two different composites with/ without fibers (Adoro/ Vectris and SculpturePlus/ FiberKor) and one nanohybrid composite (Artglass) were investigated and compared. Compos...