Results 141 to 150 of about 307,701 (295)

Effectiveness of Periodic Repolishing on the Surface and Mechanical Properties of Resin‐Based CAD/CAM Materials After Different Cycles of Combined Simulated Toothbrushing and Mechanical Cycling

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This study aimed to evaluate the effectiveness of periodic repolishing on the surface and mechanical properties of resin‐based CAD/CAM materials subjected to combined mechanical cycling and simulated toothbrushing, with or without periodic repolishing.
Gabriel Nunes Sampaio, Amanda Martinelli Moretti, Mariana Nogueira Bianchi, Victor Alves Nascimento, Aldiéris Alves Pesqueira   +4 more
wiley   +1 more source

Glass Ionomer Cements Based in TiO2 by Sol-gel Method

Orbital: The Electronic Journal of Chemistry, 2019
Glass ionomer cements are used in dentistry for applications such as luting cements and as restoratives materials, due to their ability to chemically bond to the tooth.
Thiago Ilipronti, Carolina Kleinibing Clare, Graciele Berndt, Elvio Antônio de Campos, Maria Helena Vaz Fernandes, Silvia Denofre de Campos   +5 more
doaj  

Translucency Changes of Ceramic Veneers After Aging When Cemented on Substrates With Different Saturation: Effect of Ceramic Translucency and Resin Cement Shade

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of ceramic translucency and resin cement shade on the translucency alteration after aging over different substrates. Methods Sixty specimens were divided into 12 groups (n = 5) composed of lithium disilicate (IPS e.max CAD, Ivoclar Vivadent) in three translucencies (HT, MT, LT).
Samara Franco da Silva, Camila Pontes Custódio, Paulo Francisco Cesar, Carlos Eduardo Francci   +3 more
wiley   +1 more source

Effect of surface treatments on the bond strength between additively manufactured or injection‐molded high‐performance polymers and titanium

Journal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the effect of surface treatment and fabrication techniques of high‐performance polymers on their shear bond strength (SBS) to grade IV titanium. Materials and Methods A total of 120 pre‐milled titanium abutments were sectioned.
Ahmet Serkan Küçükekenci, Doğu Ömür Dede, Oğuz Süleyman Özdemir, Burak Yilmaz   +3 more
wiley   +1 more source

World 1943

, 1943
Other title Panel title: Global map for global war and global peace Notes Relief shown by shading. World map centered on the Arctic Ocean showing air routes.
Petrucelli, Antonio
core  

Effectiveness of self‐etching ceramic primer on the bond strength of dental glass ceramics: A systematic review and meta‐analysis of in vitro studies on feldspathic and leucite‐reinforced ceramics

Journal of Prosthodontics, EarlyView.
Abstract Purpose This systematic review and meta‐analysis evaluated the bond strength effectiveness of a self‐etching ceramic primer, specifically Monobond Etch & Prime (MEP), compared to hydrofluoric acid with silane (HF+S) in feldspathic and leucite‐reinforced dental glass‐ceramics (DGCs). Materials and Methods This study followed PRISMA‐p guidelines
Nathalya Fedechen Martins, Isaac Augusto Dantas Nogueira, Francisbênia Alves Silvestre, Nicole Escórcio de Meneses, Rebeka Thiara Nascimento dos Santos, Raniel Fernandes Peixoto   +5 more
wiley   +1 more source

Late Pebble Accretion of Comet 81P/Wild 2 Nucleus: Evidence from a Plagioclase-bearing Chondrule Fragment, Pyxie

The Astrophysical Journal
Comet 81P/Wild 2 is a ∼4.5 km-sized primordial object that almost has not been modified by internal heating by ^26 Al decay. Its nucleus could have been formed by hierarchical agglomeration or gravitational collapse of pebble swarms concentrated by ...
Mingming Zhang, Michael E. Zolensky, Kohei Fukuda, Daisuke Nakashima, Michael K. Weisberg, Noriko T. Kita   +5 more
doaj   +1 more source

Methods for service life time estimation of aluminum reflectors [PDF]

, 2011
In order to reduce electricity generation costs of concentrating solar power (CSP) technologies, new low-cost reflector materials are being developed. These materials need to withstand difficult outdoor conditions without a significant loss in specular ...
Pitz-Paal, Robert, Fernandez, Aranzazu, Meyen, Stephanie, Lopez-Martin, Rafael, Sutter, Florian, Heller, Peter, Kennedy, Cheryl   +6 more
core  

Do the printing orientation angle and layer thickness influence the radiopacity of 3D‐printed dental resins?

Journal of Prosthodontics, EarlyView.
Abstract Purpose This in vitro study aimed to evaluate the effect of layer thickness, printing orientation angle, and resin type on the radiopacity of 3D‐printed dental resins. Materials and Methods Three dental 3D‐printed resins (VarseoSmile TriniQ, Crowntec, and Primeprint Temp) were investigated using two‐layer thicknesses (50 and 100 µm) and three ...
Goktug Yersel, Mukerrem Elif Ucan, Neslihan Tekce   +2 more
wiley   +1 more source

Normal thromboelastography with a markedly prolonged activated partial thromboplastin time in severe prekallikrein deficiency: Implications for perioperative hemostatic assessment

Transfusion, EarlyView.
Abstract Background Prekallikrein (PK) deficiency is a rare contact factor deficiency that can markedly prolong the activated partial thromboplastin time (aPTT) without a bleeding phenotype. Because viscoelastic hemostatic assays also rely on contact activation, their behavior in severe PK deficiency is relevant to perioperative evaluation of isolated ...
Jeremy W. Jacobs, Anton Matafonov, Patricia G. Baxter, Qiufang Cheng, Garrett S. Booth, Deva Sharma, Benjamin F. Tillman, David Gailani   +7 more
wiley   +1 more source