Results 51 to 60 of about 209 (141)

Effects of Substructure Color and Restoration Thickness on the Final Color of Ultra‐Translucent Zirconia Ceramics

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This in vitro study aimed to evaluate the effects of substructure color and restoration thickness on the final color of shade‐gradient ultra‐translucent zirconia ceramics. Material and Methods A total of 180 flat‐shaped ultra‐translucent zirconia specimens (5Y‐PSZ) with thicknesses of 0.4, 0.6, and 0.8 mm (n = 60) were fabricated and
Elif Yılmaz Biçer, Merve Bankoğlu Güngör, Cemal Aydın   +2 more
wiley   +1 more source

Influence of Different Multilayer Zirconia Materials on the In Vitro Load‐Bearing Capacity of Resin‐Bonded Fixed Partial Dentures in the Posterior Region

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective Comparison of the load‐bearing capacity and failure pattern of posterior resin‐bonded fixed partial dentures (RBFPDs) differing in retainer design, zirconia material, and vertical nesting position. Materials and Methods RBFPDs replacing a maxillary first molar were fabricated with 2 retainer designs (inlay‐retained, IR; wing‐retained,
Moritz Waldecker, Maria Sophie Heller, Stefan Rues, Peter Rammelsberg, Wolfgang Bömicke   +4 more
wiley   +1 more source

Petrographic study of the colorful tiles of the facade's decor of churches of Veliky Ustyug

RUDN Journal of Engineering Research, 2011
The structure, mineral and a chemical composition of ceramic paste and glazes of colorful tiles are studied. It is revealed that for their manufacturing was used the local red clay into which in quality of emaciating elements were entered sand and a ...
R V Lobzova, V N Yarosh
doaj  

Ultra‐High‐Speed Sintering of 3.5Y‐TZP Zirconia: Time Reduction Without Compromising Translucency

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To assess, firstly, the impact of three sintering speeds on translucency and grain size of 3.5Y‐TZP zirconia (Katana HT) across clinically relevant thicknesses, and secondly, the effect of thermocycling on translucency. Materials and Methods Disc specimens were fabricated at six thicknesses (0.7–2.0 mm) and sintered using SLOW (7 h),
Tatiana Roman, Hamdi Jmal, Teissir Ben Ammar , Adrien Greffet, Marc Lenertz, Olivier Etienne   +5 more
wiley   +1 more source

Effect of Glazing Dwell Time and Cooling Duration on Flexural Strength and Surface Microhardness of 3 mol% Yttria‐Stabilized Tetragonal Zirconia: An In Vitro Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of glazing dwell time and cooling duration on the flexural strength and surface microhardness of high‐translucency 3 mol% yttria‐stabilized tetragonal zirconia polycrystal (3Y‐TZP). Materials and Methods Total of 108 rectangular zirconia specimens (20 × 4 × 2 mm) were fabricated from preshaded monolithic blocks
Shubha Sarmalkar, Aradhana Nagarsekar, Meena A. Aras, Umesh Y. Pai, Ridhima Gaunkar, Prajakta R. Volvaikar   +5 more
wiley   +1 more source

Esmaltes Digitales para un proceso de esmaltación y decoración totalmente digital

Boletín de la Sociedad Española de Cerámica y Vidrio, 2011
The Spanish Society of Ceramic & Glass has awarded Esmalglass – Itaca Group with an “Alfa de Oro” on its 2011 edition, for the following investigation work: the development of a new range of glazes applied with digital systems that will allow to ...
Itaca Grupo, Esmalglas-
doaj   +1 more source

Breaking Barriers: Scaffolding Social‐Symbolic Work for Women’s Economic Empowerment

Journal of Management Studies, EarlyView.
Abstract This study advances the understanding of Women’s Economic Empowerment (WEE) in non‐Western contexts by theorizing how social‐symbolic work facilitates empowerment despite entrenched institutional and cultural constraints. Drawing on a qualitative study into the establishment of Kuwait’s first women’s business incubator, we explore how female ...
Mohsen Abumuamar, Juliane Reinecke
wiley   +1 more source

Up-Converting Lanthanide-Doped YAG Nanospheres

Frontiers in Materials, 2020
The development of lanthanide-doped Y3Al5O12 (Ln:YAG) garnet nanostructures is a hot topic in the field of inorganic nanophosphors due to the current interest in developing small nanoparticles for solid-state lighting (SSL), displays, lasers and ...
Marta Vallés-Pelarda, Rafael S. Sanchez, Eva M. Barea, Iván Mora-Seró, Beatriz Julián-López   +4 more
doaj   +1 more source

Effect of substructure fabrication method and design on the fracture resistance properties of metal–ceramic restorations

Journal of Prosthodontics, EarlyView.
Abstract Purpose In metal–ceramic restorations, the substructure fabrication method and design may affect the prognosis of the prosthesis. This study evaluated and compared the fracture resistance of metal–ceramic restorations fabricated with different substructure fabrication methods using two different alloy powders and designs.
Young‐Hoon Lee, Yoon‐Hyuk Huh, Chan‐Jin Park, Lee‐Ra Cho, Kyung‐Ho Ko   +4 more
wiley   +1 more source

Effects of gastric acid on surface roughness, microhardness, fracture strength, and color change of dental ceramics: A systematic review of in vitro studies

Journal of Prosthodontics, EarlyView.
Abstract Purpose This systematic review evaluated the effects of simulated gastric acid (SGA) on surface and mechanical properties of dental ceramics to answer the research question: Does immersion in SGA alter the surface roughness, microhardness, fracture strength, and color of dental ceramics?
Geany Ferreira Rodrigues, Isaac Augusto Dantas Nogueira, Nicole Escórcio de Meneses, Ana Letícia Daniel Fontenele, Francisbênia Alves Silvestre, Ana Carolina Lima Moreira, Lívia Maria Sales Pinto Fiamengui, Karina Matthes de Freitas Pontes, Raniel Fernandes Peixoto   +8 more
wiley   +1 more source