搜索结果: 121-135 共查到“医学 Resistance”相关记录201条 . 查询时间(0.098 秒)
Sulfuration Resistance of Five Experimental Ag-Pd-Au-Cu Alloys with Low Pd Content of 10 or 12%
Ag-Pd-Au-Cu alloys Low Pd content Sulfuration resistance
2009/9/14
Commercial Ag-based alloy (46Ag-20Pd-12Au-20Cu alloy) is widely used in Japan as a casting alloy. As opposed to the commercial composition, we prepared five experimental Ag-based alloys with reduced P...
Corrosion Resistance and Surface Characterization of Electrolyzed Ti-Ni Alloy
Ti-Ni alloy Electrolytic treatment Surface characterization
2009/9/14
Ti-Ni alloy has been increasingly applied to medical and dental devices, such as coronary stents and orthodontic wires. This alloy contains nickel, which is known to give rise to cytotoxicity, metal a...
Fracture Resistance of Inlay-retained Fixed Partial Dentures Reinforced with Fiber-reinforced Composite
Fiber-reinforced composite Fracture load Inlay-retained fixed partial dentures
2009/9/14
In this study, the effect on the fracture load of inlay-retained composite fixed partial dentures (FPDs) caused by reinforcing them with fiber-reinforced composite (FRC) in different positions was exa...
Fracture Resistance of Nd:YAG Laser-welded Cast Titanium Joints with Various Clinical Thicknesses and Welding Pulse Energies
Fracture resistance Thickness Welding pulse energy
2009/9/14
The purpose of this study was to evaluate the fracture resistance of Nd:YAG laser-welded cast titanium (Ti) joints with various clinical thicknesses and welding pulse energies. A four-point bending te...
Effect of Thermocycling on Tensile Strength and Tear Resistance of Four Soft Denture Liners
Liner Strength Thermocycling
2009/9/14
This study evaluated the effect of thermocycling on the tensile strength and tear resistance of four long-term soft denture liners. One light-activated (Astron Light, AL), two chemically activated (GC...
The Development of Ti Alloys for Dental Implant with High Corrosion Resistance and Mechanical Strength
Titanium alloy Corrosion Mechanical strength
2009/9/14
The corrosion behaviors of Ti and Ti-6Al-4V, Ti-6Al-7Nb, Ti-0.5Pt, Ti-6Al-4V-0.5Pt, and Ti-6Al-7Nb-0.5Pt alloys were examined using an electrochemical analyzer in artificial saliva containing 0.1 and ...
The Effect of Esthetic Fibers on Impact Resistance of a Conventional Heat-cured Denture Base Resin
Fibers Impact Acrylic
2009/9/14
This study was conducted to observe the changes in impact resistance of a denture base resin reinforced with five types of fiber. E-glass, polyester, rayon, nylon 6, and nylon 6/6 fibers were cut into...
Effect of a Metal Priming Agent on Wear Resistance of Gold Alloy-indirect Composite Joint
Indirect composite Primer Wear
2009/9/14
The purpose of the current study was to evaluate the effect of a metal priming agent on wear resistance of gold alloy-composite joint. Four types of plate specimen were prepared: composite (Estenia C&...
Fatigue resistance and structural integrity of different types of fiber posts
Fiber post Fatigue test SEM
2009/9/11
The study aimed at assessing and estimating the fatigue resistance of different fiber posts and to observe their ultrastructures through SEM.
Six types of fiber posts were used: GC Fiber Post (Group ...
Acid Resistance Induced by a New Orthodontic Bonding System in vitro
Demineralization Microradiography S-PRG filler
2009/9/11
The effect of fluoride-containing orthodontic resin bonding systems on acid resistance of adjacent enamel was evaluated using transversal microradiography.
Four fluoride-containing orthodontic resin ...
Effects of Calcium Phosphate Precipitation Method on Acid Resistance to Apatite Powder and Bovine Tooth
Hydroxyapatites Calcium Phosphates Crystallinity
2009/9/11
The aims of this study were to evaluate the effects of CPP method on the crystallinity of apatite powder and on the acid resistance of bovine enamel. Crystallinity degrees of apatite powder before and...
Effect of Preparation Design on the Fracture Resistance of Zirconia Crown Copings
Preparation Zirconia CAD/CAM
2009/9/11
The aim of this in vitro study was to evaluate the effects of different preparation designs on the fracture resistance of single-crown zirconia frameworks. To this end, maxillary molar dies of CrCo al...
Evaluation of dentin bonding performance and acid-base resistance of the interface of two-step self-etching adhesive systems
Acid-base resistant zone Dentin bonding Self-etching primer system
2009/9/11
The purpose of this study was to evaluate dentin bond strengths and to observe the adhesive-dentin interface after acid-base challenge using fluoride-free and fluoride-releasing self-etching adhesive ...
Cusp Fracture Resistance of Maxillary Premolars Restored with the Bonded Amalgam Technique Using Various Luting Agents
Maxillary Premolars the Bonded Amalgam
2009/9/3
Objective. This in vitro study uses measurements of fracture resistance to compare maxillary premolars restored with the bonded amalgam technique using a new resin luting cement, glass ionomer, and re...
Influence of increased gas density and external resistance on maximum expiratory flow
human respiratory lung pressure
2009/7/17
The effect of external resistance on the relationship of expiratory air flow and intrathoracic and mouth pressure on subjects breathing gas of increased density was investigated. Five subjects breathi...