搜索结果: 1-15 共查到“口腔医学 Zirconia”相关记录22条 . 查询时间(0.077 秒)
Surface damages of zirconia by Nd:YAG dental laser irradiation
Zirconia Damage Nd:YAG Laser Welding
2010/11/30
The purpose of this study was to characterize the surface damages of zirconia by Nd:YAG dental laser irradiation through a systematic evaluation of the associated microstructural changes. Disk specime...
Zirconia ceramic post systems: a literature review and a case report
Zirconia post Clinical experience In vitro studies
2010/11/26
Cast metal post-core systems have a long history of successful use because of their superior physical properties. However, their high elastic modulus can cause stress concentrations within the surroun...
In vitro evaluation of shear bond strength of veneering ceramics to zirconia
Delamination Veneer Zirconia
2010/11/26
The bond strength between veneering ceramic and zirconia framework is the weakest link in the layered structure. To investigate the shear bond strength (SBS) of veneering ceramics to zirconia, four ty...
Effect of surface treatments on the bond strength of a zirconia-reinforced ceramic to composite resin
Ceramics Composite resins Tensile strength Shear strength
2009/10/16
The objective of this study was to evaluate the tensile (st) and shear bond strength (ss) of a glass-infiltrated alumina-based zirconia-reinforced ceramic (IZ - Vita In-Ceram Zirconia) to a composite ...
Adhesive cementation of zirconia posts to root dentin: evaluation of the mechanical cycling effect
Post and core technique Ceramics Stress mechanical Bond strength
2009/10/16
This study evaluated the effect of mechanical cycling on the bond strength of zirconia posts to root dentin. Thirty single-rooted human teeth were transversally sectioned to a length of 16 mm. The can...
Effects of Alumina-blasting and Adhesive Primers on Bonding between Resin Luting Agent and Zirconia Ceramics
Zirconia ceramic Resin luting agent Bond strength
2009/9/15
This study evaluated the effect of alumina-blasting and three commercial adhesive primers on the shear bond strength of a dual-cured resin luting agent to zirconia ceramics. Two different-sized zircon...
Effect of Surface Condition of Dental Zirconia Ceramic (Denzir) on Bonding
Bonding strength Surface treatment
2009/9/15
Yttria partially stabilized zirconia (YPSZ) ceramics are suitable for dental and medical use because of their high fracture toughness and chemical durability. The purpose of this study was to examine ...
Effect of Sintering on the Marginal and Internal Fit of CAD/CAM-fabricated Zirconia Frameworks
Zirconia ceramics CAD/CAM system Framework
2009/9/14
The aim of this study was to investigate the effect of post-machining sintering on marginal and internal fit of CAD/CAM-fabricated zirconia frameworks. Single crown copings (A: abutment), three-unit b...
Effect of Thermal Misfit between Different Veneering Ceramics and Zirconia Frameworks on in vitro Fracture Load of Single Crowns
Zirconia Thermal misfit Fracture load
2009/9/14
Thermal misfit is deemed as one reason for the chipping of veneered zirconia restorations. Aim of the present study was to assess the effect of thermal misfit on the fracture load of veneered zirconia...
Retentive Force of Three Fiber-reinforced Resin Composite Posts and a Zirconia Post Cemented with Two Adhesive Luting Agents: In Vitro Study
Ceramic posts Adhesive luting agent Pull-out test
2009/9/14
By means of a pull-out test, this study compared the retentive force of three fiber-reinforced resin composite posts and a zirconia post. These posts were cemented using two different dual-polymerizin...
Retentive Force of Three Fiber-reinforced Resin Composite Posts and a Zirconia Post Cemented with Two Adhesive Luting Agents: In Vitro Study
Ceramic posts Adhesive luting agent Pull-out test
2009/9/14
By means of a pull-out test, this study compared the retentive force of three fiber-reinforced resin composite posts and a zirconia post. These posts were cemented using two different dual-polymerizin...
Electrophoretic Deposition Behavior of Ceria-stabilized Zirconia/Alumina Powder
Electrophoretic deposition Zirconia Zeta potential
2009/9/14
The aim of this study was to evaluate the electrophoretic deposition (EPD) behavior of ceria-stabilized zirconia/alumina (Ce-TZP/Al2O3) granulated powder. Two types of slurry with powder-to-solvent ra...
Effect of testing methods on the bond strength of resin to zirconia-alumina ceramic: microtensile versus shear test
Microtensile test Shear test Zirconia
2009/9/14
This study tested the bond strength of a resin cement to a glass-infiltrated zirconia-alumina ceramic after three conditioning methods and using two test methods (shear-SBS versus microtensile-MTBS). ...
Ultrasonic cleaning of silica-coated zirconia influences bond strength between zirconia and resin luting material
Zirconia Silica Adhesion
2009/9/14
The purpose of this study was to evaluate how ultrasonic cleaning of silica-coated zirconia surfaces would influence the latter&prim;s bond strength to resin luting material. Forty zirconia specimens ...
Effect of preparation angles on the precision of zirconia crown copings fabricated by CAD/CAM system
Preparation angle Zirconia Precision
2009/9/14
The aim of this in vitro study was to evaluate the effects of different preparation angles on the precision of fit of zirconia crown frameworks. Dies were fabricated with three different preparation a...